1998 Mar 24

Philips Semiconductors

Preliminary specification

In Car Entertainment (ICE) car radio

TEA6823T; TEA6825T

FEATURES

General

FM mixer for conversion from FM-IF

= 72.2 MHz to

FM-IF

= 10.7 MHz

AM mixer for conversion from AM-IF

= 10.7 MHz to

AM-IF

= 450 kHz

FM-IF gain stage

Crystal oscillator providing mixer frequencies and
references for IF-count and stereo decoder

FM quadrature demodulator with automatic centre
frequency adjustment and THD compensation

Level, multi-path and noise detectors

Soft mute

Stereo noise cancelling and variable de-emphasis

PLL stereo decoder

Noise blanker

AM IF-amplifier and demodulator

C-bus transceiver with interface to enable direct data

transfer to radio front-end

IF-count for AM and FM

Reference frequency generation for PLL synthesizer.

Stereo decoder

Adjustment-free PLL VCO

Pilot depending mono/stereo switching

Analog control of mono/stereo blend

Adjacent channel noise suppression (114 kHz)

Pilot cancelled

Analog control of de-emphasis

Integrated low-pass filters for 190 kHz adjacent channel
interferences and signal delay for interference
absorption circuit.

GENERAL DESCRIPTION

The TEA6823T together with the TEA6811T and the
TEA6825T together with the TEA6810T form an AM/FM
electronic tuned car radio in a double conversion receiver
concept.

ORDERING INFORMATION

TYPE NUMBER

PACKAGE

NAME

DESCRIPTION

VERSION

TEA6823T

VSO56

plastic very small outline package; 56 leads

SOT190-1

TEA6825T

VSO56

plastic very small outline package; 56 leads; face down

SOT190-2

1998 Mar 24

Philips Semiconductors

Preliminary specification

In Car Entertainment (ICE) car radio

TEA6823T; TEA6825T

QUICK REFERENCE DATA

Note

1. IC is operating; specified parameters may deviate from limits which are valid for operating range.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

DDA1

analog supply voltage 1 (+5 V; pin 5)

note 1

4.5

5.0

5.5

operating range

4.75

5.0

5.25

DDA1

analog supply current 1 (pin 5)

FM mode

AM mode

+ I

total FM mixer output current

4.8

6.0

7.2

+ I

total AM mixer output current

DDA2

analog supply voltage 2 (pin 28)

note 1

7.0

8.5

operating range

8.1

8.5

8.9

DDA2

analog supply current 2 (pin 28)

FM mode

2.4

3.0

3.6

DDA3

analog supply voltage 3 (+8.5 V; pin 56)

note 1

7.0

8.5

operating range

8.1

8.5

8.9

DDA3

analog supply current 3 (pin 56)

FM mode

AM mode

9.5

DDD

digital supply voltage 1 (+5 V; pin 52)

note 1

4.5

5.0

5.5

operating range

4.75

5.0

5.25

DDD

digital supply current (pin 52)

note 1

signal plus noise-to-noise ratio

FM mode;

f = 22.5 kHz at

pins 43 and 47

AM mode; m = 0.3

THD

total harmonic distortion

FM mode;

f = 75 kHz

0.1

0.35

AM mode

1.5

channel separation (adjusted)

amb

operating ambient temperature

+85

--------------

1998

Mar

Philips Semiconductors

Preliminary specification

In Car Entertainment (ICE) car radio

TEA6823T

; TEA6825T

This text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here in

white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here inThis text is here in

white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader. white to force landscape pages to be ...

BLOCK DIAGRAM

dbook, full pagewidth

MGK693

DIGITAL

PHASE

DETECTOR

LOGIC

BLOCK

DELOG

AMPLIFIER

PEAK

DETECTOR

AVERAGE

DETECTOR

AVERAGE

DETECTOR

MPX-

DECODER

AND

MATRIX

PILOT

CANCELLER

PILOT

DETECTOR

PHASE

DETECTOR

PEAK

DETECTOR

TEMP

COMPEN-

SATION

CURRENT

SWITCH

THRESHOLD

CONTROL

MODULATION

DETECTOR

PULSE

FORMER

INTERFERENCE

DETECTOR

NOISE

DETECTOR

FM-LIMITER

AM-AMPLIFIER

LEVEL

DETECTOR

AFC

MPX

BUFFER

LOW

PASS

FILTER

HIGH
PASS

FILTER

SUPPLY

VCO

SOFT

MUTE

AM/FM

SWITCH

LEVEL

AMPLIFIER

IF-

AMPLIFIER

COUNTER

REFERENCE
FREQUENCY

20 kHz

BUFFER

ADC

MULTI-

PATH

ADC

LEVEL

C-BUS

220 k

82 k

100 k

R41

4.3 k

82 k

100 k

R39

100 k

R40

10 nF

3.3 nF

220 nF

68 pF

27 k

220 nF

22 nF

62 pF

L13

HIGH
PASS

60 kHz

100 nF

100
nF

1 k

1.5 nF

SFP450

100 k

R51

33 k

FMSTOP

LEVELADJ

AMSTOP

TOKO
P392BC-1977Z

TOKO
7PSAG-1946D = S

TR5

Vref

VCC1

RDS

radio mute

470 nF

6.8 nF

820 k

100 nF

120 k

470 nF

38 kHz

19 kHz

fref

Vint1

Vint2

Vint1
Vint2

mono

OSCILLATOR

56
pF

100 nF

SFE10.7

10 nF

330

10.7 MHz

72.2 MHz

ZS369SCS-2144AJ TR3

22 nF

fref

PHILIPS
9922 521 00098
or Daiwa AT-49

61.5 MHz

10 k

SDA

SCL

SDA

SCL

220 nF

100 nF

100

100 nF

100

8.5 V

VCC

8.5 V

VCCA

5 V

VDDD

5 V

Vref

OUTLEFT

OUTRIGHT

VCC

5 V

VDDD

5 V

10 k

12 k

33 k

3.3 M

2.2 M

1 M

1.2 M

330

level

TEA6823T
TEA6825T

tuning

mute

Fig.1 Block diagram.

1998 Mar 24

Philips Semiconductors

Preliminary specification

In Car Entertainment (ICE) car radio

TEA6823T; TEA6825T

PINNING

SYMBOL

PIN

DESCRIPTION

QDET1

demodulator tank 1

QDET2

demodulator tank 2

TSWITCH

time switch input

AGND

analog ground

DDA1

analog supply voltage 1 (+5 V)

HFBUS1

HF bus 1 output;
pull-up to +5 V

HFBUS2

HF bus 2 output;
pull-up to +5 V

XTAL1

crystal oscillator 1

XTAL2

crystal oscillator 2

ref(p)

PLL reference frequency
output (p)

ref(n)

PLL reference frequency
output (n)

ref

reference current

FMIF1IN1

72 MHz FM-IF input 1

FMIF1IN2

72 MHz FM-IF input 2

TSDR

time constant for SDR

TSDS

time constant for SDS

SDS

SDS control voltage input

SDR

SDR control voltage input

FMIF2OUT1

FM mixer output 1

FMIF2OUT2

FM mixer output 2

ref

reference voltage output

AMIF2OUT1

AM mixer output 1

AMIF2OUT2

AM mixer output 2

FMAMDEC

FM/AM 10.7 MHz decoupling

PHASEDET

phase detector output

PILDET

pilot detector output

FMAM10.7

FM/AM 10.7 MHz input

DDA2

analog supply voltage 2

FMIFAMPOUT

FM-IF amplifier output

AFGND

AF ground

DEEMPHR

de-emphasis capacitor right

DEEMPHL

de-emphasis capacitor left

AMIF2IN1

AM-IF

input 1

AMIF2IN2

AM-IF

input 2

FMIN2

FM limiter input

DCFEED

DC feed FM limiter

FMIN1

FM limiter input

LEVELADJ

level adjustment input

AFC

AFC capacitor

MPBUF

multi-path buffer time constant

OUTLEFT

AF output left

FMSTOP

FMSTOP adjustment input

RDS/AMSTOP

MPX for RDS/AMSTOP
adjustment input

OUTRIGHT

AF output right

MPXIN

stereo decoder MPX input

THRES

threshold

MPXOUT

FM demodulator MPX output

AMAFOUT

AM demodulator AF output

mute/AML

mute voltage/AM level

LEVELUNWEIG

unweighted level output

IAC

CONTR

IAC control voltage

DDD

digital supply voltage

SDA

serial data input/output;
pull-up to +5 V

SCL

serial clock input;
pull-up to +5 V

DGND

digital ground

DDA3

analog supply voltage 3
(+8.5 V)

SYMBOL

PIN

DESCRIPTION

1998 Mar 24

Philips Semiconductors

Preliminary specification

In Car Entertainment (ICE) car radio

TEA6823T; TEA6825T

Fig.2 Pin configuration for TEA6823T.

handbook, halfpage

TEA6823T

MHA700

VDDA3

DGND

SCL

VDDD

IACCONTR

Vmute/AML

SDA

LEVELUNWEIG

AMAFOUT

MPXOUT

THRES

MPXIN

OUTRIGHT

RDS/AMSTOP

FMSTOP

OUTLEFT

MPBUF

CAFC

LEVELADJ

FMIN1

DCFEED

FMIN2

AMIF2IN2

AMIF2IN1

DEEMPHL

DEEMPHR

AFGND

FMIFAMPOUT

VDDA2

FMAM10.7

PILDET

PHASEDET

FMAMDEC

AMIF2OUT2

AMIF2OUT1

Vref

FMIF2OUT2

FMIF2OUT1

VSDR

VSDS

TSDS

TSDR

FMIF1IN2

FMIF1IN1

Iref

fref(n)

fref(p)

XTAL2

XTAL1

HFBUS2

HFBUS1

VDDA1

AGND

TSWITCH

QDET2

QDET1

Fig.3 Pin configuration for TEA6825T (top view).

handbook, halfpage

TEA6825T

MHA701

VDDA3

DGND

SCL

SDA

VDDD

IACCONTR

LEVELUNWEIG

Vmute/AML

AMAFOUT

MPXOUT

THRES

MPXIN

OUTRIGHT

RDS/AMSTOP

FMSTOP

OUTLEFT

MPBUF

CAFC

LEVELADJ

FMIN1

DCFEED

FMIN2

AMIF2IN2

AMIF2IN1

DEEMPHL

DEEMPHR

AFGND

FMIFAMPOUT

QDET1

QDET2

TSWITCH

AGND

VDDA1

HFBUS1

HFBUS2

XTAL1

XTAL2

fref(p)

fref(n)

Iref

FMIF1IN1

FMIF1IN2

TSDR

TSDS

VSDS

VSDR

FMIF2OUT1

FMIF2OUT2

Vref

AMIF2OUT1

AMIF2OUT2

FMAMDEC

PHASEDET

PILDET

FMAM10.7

VDDA2

FUNCTIONAL DESCRIPTION

Stereo decoder

By changing the value of the input resistor at pin 12 the
MPX input can be adapted to the level of the FM
demodulator output (see Fig.16).

A 3rd order low-pass filter (f

= 90 kHz) at the MPX input

provides an extra 190 kHz ACI suppression.

An interference gate is connected at the MPX demodulator
outputs. For AM the VCO is switched off.

1998 Mar 24

Philips Semiconductors

Preliminary specification

In Car Entertainment (ICE) car radio

TEA6823T; TEA6825T

LIMITING VALUES

In accordance with the Absolute Maximum Rating System (IEC 134).

Note

1. Charge device model class B: equivalent to discharging a 200 pF capacitor via a 0

series resistor.

CHARACTERISTICS
V

56-4

= V

28-4

= 8.5 V; V

5-4

= V

52-55

= 5 V; T

amb

= 25

C; f

mod

= 1 kHz; deviation = 22.5 kHz; R

= 50

; V

37-35

= 10 mV;

with de-emphasis = 50

s; coil quality = 15; unless otherwise specified.

SYMBOL

PARAMETER

CONDITIONS

MIN.

MAX.

UNIT

DDA1

analog supply voltage 1 (pin 5)

0.3

+6.5

DDA2

analog supply voltage 2 (pin 28)

0.3

+12

DDA3

analog supply voltage 3 (pin 56)

0.3

+12

DDD

digital supply voltage (pin 52)

0.3

+6.5

stg

storage temperature

+150

amb

operating ambient temperature

+85

electrostatic handling

note 1

pins 8 and 9

100

+100

all other pins

300

+300

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

Currents

DDA1

analog supply current 1 (pin 5)

FM mode

AM mode

DDA2

analog supply current 2 (pin 28)

FM mode

2.4

3.0

3.6

DDA3

analog supply current 3 (pin 56)

FM mode

AM mode

9.5

DDD

digital supply current (pin 52)

+ I

total FM mixer output current

4.8

6.0

7.2

+ I

total AM mixer output current

AM mode

FM-IF path; see Fig.4

19-20 max(p-p)

maximum output voltage
(peak-to-peak value)

12.0

14.0

; I

mixer bias current

2.4

3.0

3.6

mixer leakage current

in AM position

19IF2

13-14IF1

conversion gain

1.65

1.9

2.2

input resistance (pins 13 to 14)

input capacitance (pins 13 to 14)

4.5

opt

optimum generator resistance

1.2

output resistance (pins 19 to 20)

output capacitance (pins 19 to 4
and pins 20 to 4)

IP3

third order intermodulation

114

124

1998 Mar 24

Philips Semiconductors

Preliminary specification

In Car Entertainment (ICE) car radio

TEA6823T; TEA6825T

Oscillator

osc

oscillator frequency

61.5

MHz

osc

oscillator frequency spread

250

osc

temperature dependence of
oscillator frequency

crystal type Philips
9922 521 00098

crystal motional resistance

crystal shunt capacitance

FM-IF

amplifier

27-24 max(rms)

maximum input voltage for 1 dB
compression point (RMS value)

110

29-4 max(rms)

maximum output voltage
(RMS value)

220

320

29-4

27-24

amplifier gain

= 330

; see Fig.5

29-4

27-24

gain temperature dependence

C < T

amb

< +85

0.1

dB/K

input resistance (pins 27 to 24)

300

330

360

input capacitance (pins 27 to 4)

output resistance (pin 29)

300

330

360

output capacitance (pins 29 to 4)

FM-IF

limiter

o 1-2(p-p)

limiter output voltage
(peak-to-peak value)

500

700

1-2

37-35

limiter gain

see Fig.6

input capacitance (pins 37 to 4)

output resistance (pins 1 to 2)

1.0

output capacitance (pins 1 to 2)

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

1998 Mar 24

Philips Semiconductors

Preliminary specification

In Car Entertainment (ICE) car radio

TEA6823T; TEA6825T

FM demodulator

47-4(rms)

MPX output voltage (RMS value)

160

200

240

43-4(rms)

MPX output voltage for RDS
(RMS value)

160

200

240

37-35(rms)

start of limiting voltage (RMS value)

3 dB

37-35(rms)

input voltage for signal plus
noise-to-noise ratio (RMS value)

see Fig.7 for pin 47
(MPXOUT) and Fig.8 for
pin 43 (RDS/AMSTOP)

100

43DC

residual DC-offset voltage

demod

= typical value

V < V

37-35

< 80

100

1000

V < V

37-35

< 800 mV

43FM

43AM

AM suppression

f = 22.5 kHz;

modAM

= 1 kHz;

= 30%;

37-35

= 3 to 300 mV

47FM

47AM

AM suppression

37-35

= 1 to 300 mV

43-44AFCdis

43-44AFCactive

demodulator frequency control
voltage (AFC) efficiency

at 100 kHz detune from
exact tuning

output resistance (pin 47)

output resistance (pin 43)

1.5

AF bandwidth (pin 43)

200

kHz

signal plus noise-to-noise ratio

THD

total harmonic distortion

detuning

50 kHz;

f = 75 kHz; f

mod

= 1 kHz

without de-emphasis;
L

demod

= typical value

pin 43;
V

37-35

= 300

to 800 mV

0.1

0.35

pin 47;
V

37-35

= 1 to 800 mV

0.1

0.35

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

--------------

26 dB

--------------

46 dB

--------------

1998 Mar 24

Philips Semiconductors

Preliminary specification

In Car Entertainment (ICE) car radio

TEA6823T; TEA6825T

Unweighted voltage level

50-4

unweighted voltage level

see Fig.9; V

= 2.52 V

37-35

2.5

1.6

2.2

3.0

37-35

= 1.0 mV

2.7

3.4

4.7

50-4

37-35

slope of unweighted voltage level

100

V (RMS)

37-35

< 300 mV

temperature
compensation off

0.75

0.9

1.05

V/20 dB

temperature
compensation on

0.6

0.75

0.9

V/20 dB

50-4

/VK

temperature dependence

37-35

= 1 mV

temperature
compensation off

5.0

mV/VK

temperature
compensation on

2.0

mV/VK

50(max)source

maximum output source current

0.3

50(max)sink

maximum output sink current

o50

output resistance

300

DJUSTMENT OF UNWEIGHTED VOLTAGE LEVEL AND

mute/AML

; note 1

adjusting range voltage

37-35

= 10 mV (RMS)

1.8

+1.8

38-4

internal bias voltage

2.6

50-4

38-4

adjusting gain

0.9

i38

input resistance

UTING DEPENDENCE ON ADJUST OF LEVEL UNWEIGHTED VOLTAGE

; note 2

start of mute

= 0.625

mute slope

6 dB

dB/V

Soft mute, time constant control, mono/stereo blend and high-cut control; see Fig.22

UTE VOLTAGE

; note 3

49-4

mute voltage

= 2.52 V

37-35

< 2.5

1.8

2.2

3.2

37-35

= 1.0 mV

2.7

3.4

4.7

49-4

37-35

slope of mute voltage

100

V (RMS)

37-35

< 300 mV

0.75

0.9

1.05

V/20 dB

49-4

/VK

temperature dependency

37-35

= 1 mV

5.0

mV/VK

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

--------------------------

1998 Mar 24

Philips Semiconductors

Preliminary specification

In Car Entertainment (ICE) car radio

TEA6823T; TEA6825T

TTACK AND DECAY TIME FOR MUTE VOLTAGE

charge current

pin 3 connected to GND

3.5

pin 3 connected to pin 5

150

dch

discharge current

pin 3 connected to GND

4.0

pin 3 connected to pin 5

170

muting activated by 60 kHz FM
interference

< 3 V; V

37-35

= 3 mV;

mod

= 60 kHz

pin 3 connected to GND;
V

= 9 dB

kHz

pin 3 connected to pin 5;
V

= 6 dB

kHz

maximum mute depth by 60 kHz
FM interference

pin 3 connected to GND

pin 3 connected to pin 5

IME CONSTANT FOR MONO

STEREO BLEND VOLTAGE

; note 4

charge current

37-35

= 3 mV;

pin 3 connected to GND

0.6

37-35

= 3 mV;

pin 3 connected to pin 5

dch

discharge current

37-35

= 3 mV;

pin 3 connected to GND

37-35

= 3 mV;

pin 3 connected to pin 5

750

mono/stereo blend activated
by 20 kHz AM interference

< 2 V; V

37-35

= 3 mV;

L16

> 50 M

;

mod

= 20 kHz;

data byte 2 bit 5 = 0

pin 3 connected to GND

pin 3 connected to pin 5

data byte 2 bit 5 = 1

pin 3 connected to GND

pin 3 connected to pin 5

mono/stereo blend activated
by 60 kHz FM interference

< 2 V; V

37-35

= 3 mV;

L16

> 50 M

;

mod

= 60 kHz

pin 3 connected to GND

kHz

pin 3 connected to pin 5

kHz

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

1998 Mar 24

Philips Semiconductors

Preliminary specification

In Car Entertainment (ICE) car radio

TEA6823T; TEA6825T

IME CONSTANT FOR HIGH

CUT CONTROL VOLTAGE

SDR; note 5

charge current

37-35

= 3 mV;

pin 3 connected to GND

0.6

37-35

= 3 mV;

pin 3 connected to pin 5

dch

discharge current

37-35

= 3 mV;

pin 3 connected to GND

0.7

37-35

= 3 mV;

pin 3 connected to pin 5

high-cut control activated
by 20 kHz AM interference

< 2 V; V

37-35

= 3 mV;

L15

> 50 M

;

mod

= 20 kHz

pin 3 connected to GND

pin 3 connected to pin 5

high-cut control activated
by 60 kHz FM interference

< 2 V; V

37-35

= 3 mV;

L15

> 50 M

;

mod

= 60 kHz

pin 3 connected to GND

kHz

pin 3 connected to pin 5

kHz

ULTI

PATH DETECTOR

multi-path detector band-pass
centre frequency

kHz

band-pass bandwidth

7.0

kHz

Reference voltage

21-4

output voltage

1 mA

4.5

5.1

5.7

21-4

temperature dependence

3.3

mV/VK

output current

AM-IF path; see Fig.14 and notes 6 and 7

22-23 max(p-p)

maximum output voltage
(peak-to-peak value)

, I

mixer bias current

5.0

6.0

7.0

mixer leakage current

in FM position

22IF2

27-24IF1

conversion transconductance

2.2

2.7

3.4

27-24

input resistance

300

330

360

27-24

input capacitance

22-23

output resistance

10.0

20.0

22-23

output capacitance

IP3

third order intermodulation

137

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

1998 Mar 24

Philips Semiconductors

Preliminary specification

In Car Entertainment (ICE) car radio

TEA6823T; TEA6825T

Notes to the characteristics

1. For typical adjusting range see Figs 10 and 13.

2. For typical curve see Fig.11.

3. The static mute voltage follows the unweighted voltage level as function of FM-IF

voltage and level adjustment

voltage V

38-4

. It additionally depends on multi-path level, noise (adjacent channel interferences) and the position of

TSWITCH (pin 3). For typical curve for mute voltage dependence see Fig.12.

4. The mono/stereo blend voltage is generated as a function of FM-IF

voltage, multi-path level, noise and position of

TSWITCH.

5. The high-cut control voltage is generated as a function of FM-IF

voltage, multi-path level, noise and position of

TSWITCH.

6. f

IF1

= 10.7 MHz; f

IF2

= 450 kHz for AM mixer.

7. The AM oscillator signal is generated by division of the 61.5 MHz crystal oscillator. Two divider ratios programmable

by the I

C-bus: divide by 6 (AM-IF

= 10.7 MHz); divide by 2 (AM-IF

= 30 MHz).

8. For typical AM level curve see Fig.15.

9. For AM detector; f

AMIF2

= 450 kHz; f

mod

= 400 Hz; m = 30%.

DETECTOR

; notes 8 and 9

48-4(rms)

AF output level (RMS value)

L48

> 500 k

;

100

33-34

300 mV

190

240

290

33-34(rms)

sensitivity voltage (RMS value)

200

400

AM-IF

minimum input voltage

(RMS value)

THD

5%; m = 0.8

100

AM-IF

maximum input voltage

(RMS value)

THD

5%; m = 0.8

800

33-34

input resistance

1.8

2.0

2.2

24-23

input capacitance

o48

output resistance

o48

output capacitance

signal plus noise-to-noise ratio

THD

total harmonic distortion

m = 0.8;
300

33-34

200 mV

1.5

3.0

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

--------------

26 dB

--------------

46 dB

--------------

1998 Mar 24

Philips Semiconductors

Preliminary specification

In Car Entertainment (ICE) car radio

TEA6823T; TEA6825T

STEREO DECODER CHARACTERISTICS
Input signal (

f = 75 kHz) V

MPX(p-p)

= 1.7 V; f

mod

= 1 kHz; de-emphasis time constant t = 50

s; nominal input resistor

(pin 45) R

= 168 k

; T

amb

= 25

C; unless otherwise specified.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

44-4(rms)

;

41-4(rms)

AF output voltage (RMS value)

800

900

1000

44-4

; V

41-4

DC output voltage

3.1

3.6

4.1

44(max)

; I

41(max)

maximum output current

150

44-4

41-4

difference of output voltage

o(44)

; R

o(41)

output resistance

600

Lmin

minimum load resistor

channel separation (adjusted)

signal plus noise-to-noise ratio

f = 20 Hz to 15 kHz

THD

total harmonic distortion

0.1

0.3

MPX input overdrive margin

THD = 1%

Carrier and harmonic suppression at the output; note 1

pilot signal

f = 19 kHz

subcarrier

f = 38 kHz

f = 57 kHz

f = 76 kHz

intermodulation

mod

= 10 kHz; f

spur

= 1 kHz

mod

= 13 kHz; f

spur

= 1 kHz

traffic radio (ARI)

f = 57 kHz

subsidiary communications
authorization

f = 67 kHz

114

adjacent channel frequency

f = 114 kHz

190

f = 190 kHz

ripple rejection at output

= 100 Hz; V

= 100 mV (eff.)

Mono/stereo control

i(pil)

pilot threshold voltage

stereo on

mono on

i(pil)

switch hysteresis V

i on

i off

External mono/stereo control; note 2

0.75V

control voltage channel separation see Fig.17

= 6 dB

110

= 16 dB

--------------

1998 Mar 24

Philips Semiconductors

Preliminary specification

In Car Entertainment (ICE) car radio

TEA6823T; TEA6825T

Muting functions (mute via I

C-bus)

DC offset voltage

tune mute

+50

radio mute (in combination
with tune mute)

400

+400

mute

tune mute

radio mute (in combination with
tune mute)

High-cut control; see Fig.18

0.75V

control voltage

note 3

de-emph

= 50

de-emph

= 80

300

de-emph

control range of de-emphasis

Voltage controlled oscillator; note 4

osc

oscillator frequency

225

228

231

kHz

Noise blanker

NTERFERENCE DETECTION FULLY INTERNAL FROM LEVEL DETECTOR

sup

interference suppression time

RIGGER THRESHOLD CONTROL

charge current (into +4 V)

dch

discharge current (from +8.5 V)

900

RIGGER SENSITIVITY MEASUREMENT WITH PULSED MODULATION OF

FM-IF

; see Figs 19 and 20

37-35(p)

trigger sensitivity for test signal 1
(peak value)

= 2.52 V; note 5

0.5

= 2.52 V; note 6

100

trigger sensitivity for test signal 2
(peak value)

= 2.52 V; note 6

5.0

= 2.52 V; note 6

100

trigger threshold variation with
frequency modulation of FM-IF

and f

mod

= 15 kHz (pin 51)

37-35

= 100 mV;

f = 0 kHz

6.4

37-35

= 100 mV;

f = 40 kHz

250

37th

37(3dB)

shift of threshold for triggering
from MPX signal

= 0

37th

shift of threshold as function of I

0.32

0.25

0.16

dB/

bias voltage (pin 46)

< 0

4.0

4.3

4.7

> 0

5.3

5.7

6.1

offset

gate input offset current at pins 31
and 32 during suppression pulse
duration

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

1998 Mar 24

Philips Semiconductors

Preliminary specification

In Car Entertainment (ICE) car radio

TEA6823T; TEA6825T

Notes to the stereo decoder characteristics

1. The following equations give the values for the carrier and harmonic suppression at the output:

2. The stereo decoder can be set to mono via the I

C-bus. Pilot presence indication via the I

C-bus.

3. The nominal de-emphasis value can be changed to 75

s with C

; C

= 10 nF.

4. The VCO is adjusted by means of a digital auxiliary PLL.

5. Noise blanker does not trigger.

6. Noise blanker triggers.

signal

(

)

(at 1 kHz)

spurious

(

)

(at 1 kHz)

------------------------------------------------------------------

10 kHz

(

)

19 kHz

signal

(

)

(at 1 kHz)

spurious

(

)

(at 1 kHz)

------------------------------------------------------------------

13 kHz

(

)

38 kHz

(ARI)

signal

(

)

(at 1 kHz)

spurious

(

)

at 1 kHz

23 Hz

(

)

-----------------------------------------------------------------------------------------------

signal

(

)

(at 1 kHz)

spurious

(

)

(at 9 kHz)

------------------------------------------------------------------

38 kHz

(

)

67 kHz

114

signal

(

)

(at 1 kHz)

spurious

(

)

(at 4 kHz)

------------------------------------------------------------------

110 kHz

38 kHz

(

)

190

signal

(

)

(at 1 kHz)

spurious

(

)

(at 4 kHz)

------------------------------------------------------------------

186 kHz

38 kHz

(

)

1998 Mar 24

Philips Semiconductors

Preliminary specification

In Car Entertainment (ICE) car radio

TEA6823T; TEA6825T

CHARACTERISTICS FOR ANALOG-TO-DIGITAL CONVERTERS (ADCs) FOR LEVEL AND
MULTI-PATH VOLTAGES

Notes

1. The FM level information V

50-3

is analog-to-digital converted with 4 bits.

2. The AM level information V

49-4

is analog-to-digital converted with 4 bits.

3. The multi-path information V

40-4

is analog-to-digital converted with 3 bits covering an IF

amplitude modulation range

0.6; f

mod

= 20 kHz.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

ADC for FM level information; note 1

37-35

analog-to-digital conversion

step size

dB/step

level range

STOP

stop

variation of stop level as function of V

42-4

dB/V

ADC for AM level information; note 2

33-34

analog-to-digital conversion step size

dB/step

33-34

analog-to-digital conversion level range

STOP

stop

variation of stop level as function of V

43-4

dB/V

ADC for multi-path information; note 3

multi-path conversion

step 0

step 1

step 2

step 3

step 4

step 5

step 6

step 7

1998 Mar 24

Philips Semiconductors

Preliminary specification

In Car Entertainment (ICE) car radio

TEA6823T; TEA6825T

C-BUS AND I

C-BUS CONTROLLED FUNCTIONS

C-bus specification

The standard I

C-bus specification is expanded by the

following definitions.

Structure of the I

C-bus logic: slave transceiver with auto

increment and expansion to switch a direct transfer of all
transmissions to an output for the radio front-end IC
(TEA6810T respectively TEA6811T).

Subaddresses are not used.

ATA TRANSFER FOR THE

TEA6823T

AND THE

TEA6825T

Data sequence:

Address

Byte 1

Byte 2.

The data transfer may be in this order only. The transfer
direction of the data bytes is defined by the LSB of the
address.

The data becomes valid at the output of the internal
latches with the acknowledge of each byte. A STOP
condition after any byte can shorten transmission times.

When writing to the transceiver by using the STOP
condition before completion of the whole transfer:

The remaining bytes will contain the old information

If the transfer of a byte was not completed, this byte is
lost and the previous information is available.

ATA TRANSFER TO AN OUTPUT OF THE FRONT

END

A data bit in the transceiver of the TEA6823T or TEA6825T
enables or disables a direct transfer of all transmissions to
an interface stage for the front-end IC.

For a transmission to the front-end IC the address and the
data format of the front-end IC has to be used.

Remark: the pull-up resistors for the front-end interface
(pins 6 and 7) should not be connected to the 5 V supply
voltage of the front-end IC, otherwise a bus pull-down
(pin 53) can occur during switching off the front-end supply
when the interface stage is enabled.

ATA TRANSFER TO THE

IF IC

Data transfer to the IF IC (TEA6823T or TEA6825T) is
independent of the state of interface stage for the front-end
IC.

Table 1

Structure of the I

C-bus

Table 2

Data to be received by the IC for data byte 1

Table 3

Reference frequency setting in data byte 1;
see Table 1

DESCRIPTION

SPECIFICATION

Bus address of the
TEA6823T and the
TEA6825T

1100001X

Subaddress

not used

Hardware (pin)
programmable
address bits

not available

Default settings by
power-on reset

data byte 1 bits 4 to 7 are set to
logic 0; all other bits are random

BIT

DESCRIPTION

RESULT

switch for mono

bit 0 = 1

switch for stereo

bit 0 = 0

LSB reference frequency for
synthesizer

reference frequency for
synthesizer

MSB reference frequency for
synthesizer

tuning mute off

bit 4 = 1

tuning mute on

bit 4 = 0

SDS/SDR hold off

bit 5 = 1

SDS/SDR hold on

bit 5 = 0

radio mute off

bit 6 = 1

radio mute on

bit 6 = 0

C-bus to front-end ENABLED

bit 7 = 1

C-bus to front-end DISABLED

bit 7 = 0

BIT 3

BIT 2

BIT 1

FREQUENCY SETTING

3 kHz

5 kHz

10 kHz

15 kHz

25 kHz

50 kHz

not defined

1998 Mar 24

Philips Semiconductors

Preliminary specification

In Car Entertainment (ICE) car radio

TEA6823T; TEA6825T

Table 4

Data to be received by the IC for data byte 2

Table 5

Data to be transmitted by the IC for data byte 1;
note 1

Note

1. The analog-to-digital conversion for multi-path and

level will be done during a transmission of any address
to the I

C-bus.

BIT

DESCRIPTION

RESULT

AM/FM; AM mode

bit 0 = 0

AM/FM; FM mode

bit 0 = 1

divider for AM mixer; divide by 2

bit 1 = 0

divider for AM mixer; divide by 6

bit 1 = 1

measure time IF-count; 40 ms

bit 2 = 0

measure time IF-count; 4 ms

bit 2 = 1

SDR off

bit 3 = 0

SDR on

bit 3 = 1

IF-prescaler division rate;
divide by 200

bit 4 = 0

IF-prescaler division rate;
divide by 25

bit 4 = 1

sensitivity unchanged

bit 5 = 0

multi-path sensitivity switch; less
sensitivity by an offset of

m = 10%

bit 5 = 1

temperature compensation of
unweighted voltage level;
temperature coefficient as specified
in Chapter "Characteristics"

temperature compensation off

bit 6 = 0

temperature compensation on

bit 6 = 1

noise blanker deactivated by high
modulation

bit 7 = 0

noise blanker not deactivated

bit 7 = 1

BIT

DESCRIPTION

bit 1 level information

bit 2 level information

MSB (bit 3) level information

LSB multi-path information

multi-path information

MSB multi-path information

stereo pilot presence; bit 6 = 1

LSB (bit 0) level information

Table 6

Data to be transmitted by the IC for data byte 2

EFERENCED FREQUENCY GENERATION

Table 7

Division ratios

Note

1. All specified frequencies are valid for a crystal

oscillator frequency of 61.5 MHz.

BIT

DESCRIPTION

LSB of the IF-counter

IF-counter

MSB of the IF-counter

DIVISION RATIO

REFERENCE

FREQUENCY

(kHz)

(1)

20500

12300

6150

4100

2460

1230

1998 Mar 24

Philips Semiconductors

Preliminary specification

In Car Entertainment (ICE) car radio

TEA6823T; TEA6825T

Table 8

Output signal of reference frequency divider

IF-

COUNTER

Table 9

IF-counter sensitivity

AM counting windows are 4 or 40 ms. FM counting windows are 4 or 40 ms. AM counting resolution is 250 or 25 Hz.
FM counting resolution is 5 kHz, 625 Hz, 50 kHz or 6.25 kHz. AM-IF-prescaler is divisible by 1. FM-IF-prescaler is
divisible by 25 or 200.

SYMBOL

PARAMETER

MIN.

TYP.

MAX.

UNIT

10-11(p-p)

differential output voltage (peak-to-peak value)

0.3

0.4

0.5

10-4(p-p)

;

11-4(p-p)

single-ended output voltage (peak-to-peak value)

0.15

0.2

0.3

10-4

; C

11-4

output capacitance

10-52

; R

11-52

output resistance

800

1000

1200

SYMBOL

PARAMETER

CONDITIONS

MIN.

UNIT

33-34

IF-counter sensitivity

AM mode; m = 0

200

37-35

IF-counter sensitivity

FM mode

200

Fig.21 IF-counter structure.

handbook, full pagewidth

MHA205

FM IF2

AM IF2

prescaler setting

FM IF-PRESCALER

25 /

200

8-BIT BINARY COUNTER

4 ms/40 ms
counter window

B0 B1 B2 B3 B4 B5 B6 B7

1998 Mar 24

Philips Semiconductors

Preliminary specification

In Car Entertainment (ICE) car radio

TEA6823T; TEA6825T

IF-counter read out

IF-counter read out as a function of FM or AM position, counter window and prescaler setting

Note

1. In position FM with a prescaler ratio of 25, counter window of 40 ms and in position AM with 40 ms counter window

ambiguous counting results within the IF filter bandwidth are obtained. The counting range is 127 counts above and
127 counts below the nominal IF of 10.7 MHz for FM and 450 kHz for AM.

The IF-count windows are valid for a crystal oscillator frequency of 61.5 MHz.

The FM/AM switching is carried out by bit 0 of byte 2 of the received data of the IC.

The IF-counter operates continuously.

The IF-counter and window-counter will be reset when the I

C-bus logic detects the address of the IC. This disables

changes in the latches for the IF-count, while reading this value. If the transmission to the front-end IC is disabled after
the synthesizer loop of the TEA6810T/TEA6811T front-end IC has locked for a new frequency, the IF-count will be
available after the set measuring time.

The IF-counter starts at 0. The IF-counter output are the 8 least significant bits of the counting result.

FM/AM

PRESCALER

RATIO

WINDOW

(ms)

(kHz)

READ OUT

RESOLUTION

(Hz/count)

RANGE (kHz)

MIN.

MAX.

200

10700

D6H

50000

4300

17050

200

10700

5CH

5000

10065

11335

10700

B0H

6250

9906.25

11493.75

(1)

10700

E0H

625

10620.63

10779.38

450

08H

250

418.25

481.75

(1)

450

50H

446.83

453.18

1998 Mar 24

Philips Semiconductors

Preliminary specification

In Car Entertainment (ICE) car radio

TEA6823T; TEA6825T

APPLICATION INFORMATION

Fig.22 ICE application diagram (continued in Fig.23).

Time constant control: slow or fast attack and decay time constants for soft mute, mono/stereo and high-cut control can be chosen by connecting
pin 3 to GND or pin 21.

handbook, full pagewidth

22
nF

100 nF

390

2.7
k

330

CC1

330

100
nF

100 nF

10 k

100 nF

SFE10.7

SFE
10.7

61.5 MHz

SCL

SDA

220 nF

1.5 nF

82 k

100 k

LEVELADJ

:2/:6

ref

100

SFP450

100 k

FMSTOP

IF-

MULTI-

ADC

I2C-BUS

COUNTER

BUFFER

20 kHz

LEVEL

ADC

AMPLIFIER

LEVEL

:N5

AM-AMPLIFIER

FM-LIMITER

SWITCH

AM/FM

REFERENCE

OSCILLATOR

BF840

10 nF

56
pF

ZS369SCS-

2144AJ

7PSAG-
1946D = S

Philips 9922 521 00098

or Daiwa AT - 49

LEVEL

DETECTOR

IF-

FREQUENCY

AMPLIFIER

PATH

22 nF

100

220 k

47 pF

BB135

100 nF

12 nF

100 pF

470

100 nF

10
nF

270 pF

10 pF

220

100 nF

100

BUFFER

BF861A

2.7 pF

DRIVE

DIODE

10 k

GAP

BAND-

1 mH

:N2

LIMITER

AM/FM

100 nF

BUFFER

AM/FM

3.3 nF

10 k

100
pF

330 nH

47 mH

8.2 pF

1.8 pF

22 pF

10 nF

470

100 nF

AGC

AM -

DIVIDER

PROGRAMABLE

OSCILLATOR

AM/FM

PUMP

AGC

DETECTOR

LOCK

DETECTOR

PHASE

BUS

TEA6810T
TEA6811T

CHARGE

220

3.6 k

2.2 k

388BN-1211Z

E543SNAS

-02010

10 pF

1 nF

47 k

CCA

100

IN-LOCK

3.3

AM/FM

1.8
pF

4 to 10 pF

BB804

47 k

1 nF

5.6 pF

6.8
pF

6.8

3.3

220 nF

270 pF

E543SNAS

-04011

BAV

ISV

172

2.2 M

+8.5 V

CCD

+5 V

+8.5 V

TR2

TR3

TR4

TR5

R39

R40

CONTROL

TEA6823T
TEA6825T

MHA708

1 k

330 pF

330
pF

10 k

SDA

SCL

10 k

330

P392BE-
2049AJ = S

1998 Mar 24

Philips Semiconductors

Preliminary specification

In Car Entertainment (ICE) car radio

TEA6823T; TEA6825T

Fig.23 ICE application diagram (continued from Fig.22).

handbook, full pagewidth

100 nF

100

100 k

33 k

AMSTOP

10 nF

RDS

ref

220 k

68 pF

220

100

2.2 M

820 k

12 k

33 k

1.2 M

P392BC-1977Z

TOKO

220 nF

82 k

100 nF

470 nF

int2

int1

100 nF

100 k

3.3 nF

4.3 k

DETECTOR

NOISE

MODULATION

DETECTOR

FORMER

PULSE

DETECTOR

INTERFERENCE

1 M

27 k

22 nF

220 nF

3.3 M

mute

radio

mute

radio

tuning

mute

MUTE
SOFT

OUTLEFT

DETECTOR

AVERAGE

DETECTOR

PEAK

DETECTOR

PEAK

DETECTOR

AVERAGE

SWITCH

CURRENT

60 kHz

PASS
HIGH

AFC

PASS

HIGH

mono

MATRIX

AND

DECODER

MPX-

38 kHz

19 kHz

BLOCK

LOGIC

CANCELLER

PILOT

ref

DETECTOR

PILOT

DETECTOR

PHASE

DIGITAL

VCO

DETECTOR

PHASE

FILTER

LOW

MPX

DELOG

SUPPLY

OUTRIGHT

100 nF

120 k

100 nF

470 nF

6.8 nF

level

VCC

8.5 V

BUFFER

ref

AMPLIFIER

PASS

FILTER

L13

R51

R41

int1

int2

TEMPERATURE

COMPENSATION

THRESHOLD

CONTROL

TEA6823T
TEA6825T

MHA709

VCCA

VDDD

VCC

8.5 V

+5 V

1998

Mar

Philips Semiconductors

Preliminary specification

In Car Entertainment (ICE) car radio

TEA6823T

; TEA6825T

This text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here in

white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here inThis text is here in

white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader. white to force landscape pages to be ...

handbook, full pagewidth

220

22 nF

220 k

22 k

47 pF

BB135

100 nF

3.6 k

100 pF

330 pF

56 pF

10 nF

56 pF

100 nF

22 nF

1.5 nF

100 k

82 k

100 k

220 k

10 nF

220 nF

82 k

68 pF

220 nF

100
nF

12 k

33
k

1.2 M

2.2 M

820 k

22 nF

2.7 k

470 nF

100 pF

330 nH

100 nF

1 mH

BF861A

FMSTOP

OUTLEFT

OUTRIGHT

ref

SCL

SDA

detector

lock

SFE10.7

270 pF

100 nF

1 M

3.3 M

100 nF

120 k

1 k

470 nF

61.5 MHz

100 nF

27 k

220 nF

SFP450

100 k

3.3 nF

220 nF

100 k

33 k

ref

4.3 k

100 nF

100

SFE10.7

100 nF

2.2 k

100

10 nF

12 nF

10 pF

8.2 pF

1.8 pF

2.7 pF

3.3 nF

10 k

100 nF

22 pF

470

100

+5 V

10 k

6.8 nF

330

390

330

+8.5 V

10 k

100 nF

470

100

47 mH

BAV

+5 V

+8.5 V

Fref

+5 V

RDSMPX

AMSTOP

SEP

LEVEL

CCA

CCD

TEA6810T
TEA6811T

TEA6823T
TEA6825T

LEVELADJ

SDA

7PSAG-1946D = S

P392BE-

S369SCS-2144AJ (2x)

P392BC-1977Z

E543SNAS-02010

BF840

100 nF

SCL

6.8

388BN-1211Z

3.3

270 pF

10 pF

1 nF

10 pF

5.6 pF

6.8 pF

47 k

ISV172

1 nF

47 k

2.2 M

10 k

1.8 pF

4 to 10 pF

804

E543SNAS

-4011

2049AJ = S

L13

TR2

TR3

TR4

TR5

330

R41

R39

R51

R40

220 nF

MHA710

+8.5 V

Fig.24 AM/FM car radio receiver with TEA6810T and TEA6825T or TEA6811T and TEA6823T.

1998 Mar 24

Philips Semiconductors

Preliminary specification

In Car Entertainment (ICE) car radio

TEA6823T; TEA6825T

PACKAGE OUTLINES

UNIT

(1)

(2)

(1)

REFERENCES

OUTLINE

VERSION

EUROPEAN

PROJECTION

ISSUE DATE

IEC

JEDEC

EIAJ

inches

0.3
0.1

3.0
2.8

0.25

0.42
0.30

0.22
0.14

21.65
21.35

11.1
11.0

0.75

15.8
15.2

1.45
1.30

0.90
0.55

7
0

0.1

DIMENSIONS (inch dimensions are derived from the original mm dimensions)

1.6
1.4

SOT190-1

96-04-02
97-08-11

detail X

(A )

pin 1 index

0.012
0.004

0.12
0.11

0.017
0.012

0.0087
0.0055

0.85
0.84

0.44
0.43

0.0295

2.25

0.089

0.62
0.60

0.057
0.051

0.035
0.022

0.004

0.2

0.008

0.004

0.063
0.055

0.01

10 mm

scale

VSO56: plastic very small outline package; 56 leads

SOT190-1

max.

3.3

0.13

Note

1. Plastic or metal protrusions of 0.3 mm maximum per side are not included.

2. Plastic interlead protrusions of 0.25 mm maximum per side are not included.

1998 Mar 24

Philips Semiconductors

Preliminary specification

In Car Entertainment (ICE) car radio

TEA6823T; TEA6825T

UNIT

(1)

(2)

(1)

REFERENCES

OUTLINE

VERSION

EUROPEAN

PROJECTION

ISSUE DATE

IEC

JEDEC

EIAJ

inches

0.3
0.1

3.0
2.8

0.25

0.42
0.30

0.22
0.14

21.65
21.35

11.1
11.0

0.75

15.8
15.2

1.45
1.30

0.90
0.55

7
0

0.1

DIMENSIONS (inch dimensions are derived from the original mm dimensions)

1.6
1.4

SOT190-2

96-04-02
97-08-11

detail X

(A )

pin 1 index

0.012
0.004

0.12
0.11

0.017
0.012

0.0087
0.0055

0.85
0.84

0.44
0.43

0.0295

2.25

0.089

0.62
0.60

0.057
0.051

0.035
0.022

0.004

0.2

0.008

0.004

0.063
0.055

0.01

10 mm

scale

VSO56: plastic very small outline package; 56 leads; face down

SOT190-2

max.

3.3

0.13

Note

1. Plastic or metal protrusions of 0.3 mm maximum per side are not included.

2. Plastic interlead protrusions of 0.25 mm maximum per side are not included.

1998 Mar 24

Philips Semiconductors

Preliminary specification

In Car Entertainment (ICE) car radio

TEA6823T; TEA6825T

SOLDERING

Introduction

There is no soldering method that is ideal for all IC
packages. Wave soldering is often preferred when
through-hole and surface mounted components are mixed
on one printed-circuit board. However, wave soldering is
not always suitable for surface mounted ICs, or for
printed-circuits with high population densities. In these
situations reflow soldering is often used.

This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our

"Data Handbook IC26; Integrated Circuit Packages"

(order code 9398 652 90011).

Reflow soldering

Reflow soldering techniques are suitable for all VSO
packages.

Reflow soldering requires solder paste (a suspension of
fine solder particles, flux and binding agent) to be applied
to the printed-circuit board by screen printing, stencilling or
pressure-syringe dispensing before package placement.

Several techniques exist for reflowing; for example,
thermal conduction by heated belt. Dwell times vary
between 50 and 300 seconds depending on heating
method. Typical reflow temperatures range from
215 to 250

Preheating is necessary to dry the paste and evaporate
the binding agent. Preheating duration: 45 minutes at
45

Wave soldering

Wave soldering techniques can be used for all VSO
packages if the following conditions are observed:

A double-wave (a turbulent wave with high upward
pressure followed by a smooth laminar wave) soldering
technique should be used.

The longitudinal axis of the package footprint must be
parallel to the solder flow.

The package footprint must incorporate solder thieves at
the downstream end.

During placement and before soldering, the package must
be fixed with a droplet of adhesive. The adhesive can be
applied by screen printing, pin transfer or syringe
dispensing. The package can be soldered after the
adhesive is cured.

Maximum permissible solder temperature is 260

C, and

maximum duration of package immersion in solder is
10 seconds, if cooled to less than 150

C within

6 seconds. Typical dwell time is 4 seconds at 250

A mildly-activated flux will eliminate the need for removal
of corrosive residues in most applications.

Repairing soldered joints

Fix the component by first soldering two diagonally-
opposite end leads. Use only a low voltage soldering iron
(less than 24 V) applied to the flat part of the lead. Contact
time must be limited to 10 seconds at up to 300

C. When

using a dedicated tool, all other leads can be soldered in
one operation within 2 to 5 seconds between
270 and 320

1998 Mar 24

Philips Semiconductors

Preliminary specification

In Car Entertainment (ICE) car radio

TEA6823T; TEA6825T

DEFINITIONS

LIFE SUPPORT APPLICATIONS

These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale

PURCHASE OF PHILIPS I

C COMPONENTS

Data sheet status

Objective specification

This data sheet contains target or goal specifications for product development.

Preliminary specification

This data sheet contains preliminary data; supplementary data may be published later.

Product specification

This data sheet contains final product specifications.

Limiting values

Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.

Application information

Where application information is given, it is advisory and does not form part of the specification.

Purchase of Philips I

C components conveys a license under the Philips' I

C patent to use the

components in the I

C system provided the system conforms to the I

C specification defined by

Philips. This specification can be ordered using the code 9398 393 40011.

Internet: http://www.semiconductors.philips.com

Philips Semiconductors a worldwide company

SCA57

All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.

The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed
without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license
under patent- or other industrial or intellectual property rights.

Netherlands: Postbus 90050, 5600 PB EINDHOVEN, Bldg. VB,
Tel. +31 40 27 82785, Fax. +31 40 27 88399

New Zealand: 2 Wagener Place, C.P.O. Box 1041, AUCKLAND,
Tel. +64 9 849 4160, Fax. +64 9 849 7811

Norway: Box 1, Manglerud 0612, OSLO,
Tel. +47 22 74 8000, Fax. +47 22 74 8341

Philippines: Philips Semiconductors Philippines Inc.,
106 Valero St. Salcedo Village, P.O. Box 2108 MCC, MAKATI,
Metro MANILA, Tel. +63 2 816 6380, Fax. +63 2 817 3474

Poland: Ul. Lukiska 10, PL 04-123 WARSZAWA,
Tel. +48 22 612 2831, Fax. +48 22 612 2327

Portugal: see Spain

Romania: see Italy

Russia: Philips Russia, Ul. Usatcheva 35A, 119048 MOSCOW,
Tel. +7 095 755 6918, Fax. +7 095 755 6919

Singapore: Lorong 1, Toa Payoh, SINGAPORE 1231,
Tel. +65 350 2538, Fax. +65 251 6500

Slovakia: see Austria

Slovenia: see Italy

South Africa: S.A. PHILIPS Pty Ltd., 195-215 Main Road Martindale,
2092 JOHANNESBURG, P.O. Box 7430 Johannesburg 2000,
Tel. +27 11 470 5911, Fax. +27 11 470 5494

South America: Al. Vicente Pinzon, 173, 6th floor,
04547-130 SÃO PAULO, SP, Brazil,
Tel. +55 11 821 2333, Fax. +55 11 821 2382

Spain: Balmes 22, 08007 BARCELONA,
Tel. +34 3 301 6312, Fax. +34 3 301 4107

Sweden: Kottbygatan 7, Akalla, S-16485 STOCKHOLM,
Tel. +46 8 632 2000, Fax. +46 8 632 2745

Switzerland: Allmendstrasse 140, CH-8027 ZÜRICH,
Tel. +41 1 488 2686, Fax. +41 1 488 3263

Taiwan: Philips Semiconductors, 6F, No. 96, Chien Kuo N. Rd., Sec. 1,
TAIPEI, Taiwan Tel. +886 2 2134 2865, Fax. +886 2 2134 2874

Thailand: PHILIPS ELECTRONICS (THAILAND) Ltd.,
209/2 Sanpavuth-Bangna Road Prakanong, BANGKOK 10260,
Tel. +66 2 745 4090, Fax. +66 2 398 0793

Turkey: Talatpasa Cad. No. 5, 80640 GÜLTEPE/ISTANBUL,
Tel. +90 212 279 2770, Fax. +90 212 282 6707

Ukraine: PHILIPS UKRAINE, 4 Patrice Lumumba str., Building B, Floor 7,
252042 KIEV, Tel. +380 44 264 2776, Fax. +380 44 268 0461

United Kingdom: Philips Semiconductors Ltd., 276 Bath Road, Hayes,
MIDDLESEX UB3 5BX, Tel. +44 181 730 5000, Fax. +44 181 754 8421

United States: 811 East Arques Avenue, SUNNYVALE, CA 94088-3409,
Tel. +1 800 234 7381

Uruguay: see South America

Vietnam: see Singapore

Yugoslavia: PHILIPS, Trg N. Pasica 5/v, 11000 BEOGRAD,
Tel. +381 11 625 344, Fax.+381 11 635 777

For all other countries apply to: Philips Semiconductors,
International Marketing & Sales Communications, Building BE-p, P.O. Box 218,
5600 MD EINDHOVEN, The Netherlands, Fax. +31 40 27 24825

Argentina: see South America

Australia: 34 Waterloo Road, NORTH RYDE, NSW 2113,
Tel. +61 2 9805 4455, Fax. +61 2 9805 4466

Austria: Computerstr. 6, A-1101 WIEN, P.O. Box 213, Tel. +43 160 1010,
Fax. +43 160 101 1210

Belarus: Hotel Minsk Business Center, Bld. 3, r. 1211, Volodarski Str. 6,
220050 MINSK, Tel. +375 172 200 733, Fax. +375 172 200 773

Belgium: see The Netherlands

Brazil: see South America

Bulgaria: Philips Bulgaria Ltd., Energoproject, 15th floor,
51 James Bourchier Blvd., 1407 SOFIA,
Tel. +359 2 689 211, Fax. +359 2 689 102

Canada: PHILIPS SEMICONDUCTORS/COMPONENTS,
Tel. +1 800 234 7381

China/Hong Kong: 501 Hong Kong Industrial Technology Centre,
72 Tat Chee Avenue, Kowloon Tong, HONG KONG,
Tel. +852 2319 7888, Fax. +852 2319 7700

Colombia: see South America

Czech Republic: see Austria

Denmark: Prags Boulevard 80, PB 1919, DK-2300 COPENHAGEN S,
Tel. +45 32 88 2636, Fax. +45 31 57 0044

Finland: Sinikalliontie 3, FIN-02630 ESPOO,
Tel. +358 9 615800, Fax. +358 9 61580920

France: 51 Rue Carnot, BP317, 92156 SURESNES Cedex,
Tel. +33 1 40 99 6161, Fax. +33 1 40 99 6427

Germany: Hammerbrookstraße 69, D-20097 HAMBURG,
Tel. +49 40 23 53 60, Fax. +49 40 23 536 300

Greece: No. 15, 25th March Street, GR 17778 TAVROS/ATHENS,
Tel. +30 1 4894 339/239, Fax. +30 1 4814 240

Hungary: see Austria

India: Philips INDIA Ltd, Band Box Building, 2nd floor,
254-D, Dr. Annie Besant Road, Worli, MUMBAI 400 025,
Tel. +91 22 493 8541, Fax. +91 22 493 0966

Indonesia: see Singapore

Ireland: Newstead, Clonskeagh, DUBLIN 14,
Tel. +353 1 7640 000, Fax. +353 1 7640 200

Israel: RAPAC Electronics, 7 Kehilat Saloniki St, PO Box 18053,
TEL AVIV 61180, Tel. +972 3 645 0444, Fax. +972 3 649 1007

Italy: PHILIPS SEMICONDUCTORS, Piazza IV Novembre 3,
20124 MILANO, Tel. +39 2 6752 2531, Fax. +39 2 6752 2557

Japan: Philips Bldg 13-37, Kohnan 2-chome, Minato-ku, TOKYO 108,
Tel. +81 3 3740 5130, Fax. +81 3 3740 5077

Korea: Philips House, 260-199 Itaewon-dong, Yongsan-ku, SEOUL,
Tel. +82 2 709 1412, Fax. +82 2 709 1415

Malaysia: No. 76 Jalan Universiti, 46200 PETALING JAYA, SELANGOR,
Tel. +60 3 750 5214, Fax. +60 3 757 4880

Mexico: 5900 Gateway East, Suite 200, EL PASO, TEXAS 79905,
Tel. +9-5 800 234 7381

Middle East: see Italy

Printed in The Netherlands

545102/1200/01/pp48

Date of release: 1998 Mar 24

Document order number:

9397 750 02316

Ð­Ð»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: TEA6823

ÐÐ»ÐµÐºÑ‚Ñ€Ð¾Ð½Ð½Ñ‹Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½Ñ‚: TEA6823