DATA SHEET
Product specification
Supersedes data of May 1994
File under Integrated Circuits, IC01
1997 Feb 27
INTEGRATED CIRCUITS
TDA1597
IF amplifier/demodulator for FM
radio receivers
1997 Feb 27
2
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1597
FEATURES
Balanced limiting amplifier
Balanced coincidence demodulator
Two open-collector stop pulse outputs for
microcomputer tuning control
Simulated behaviour of ratio detector (internal field
strength and detuning dependent voltage for dynamic
AF signal muting)
Mono/stereo blend field strength indication control
voltage
AFC output
3-state mode switch for FM-MUTE-ON, FM-MUTE-OFF
and FM-OFF
Internal compensation of AF signal Total Harmonic
Distortion (THD)
Built-in hum and ripple rejection circuits.
GENERAL DESCRIPTION
The TDA1597 provides IF amplification, symmetrical
quadrature demodulation and level detection for quality
home and car FM radio receivers and is suitable for mono
and stereo reception. It may also be applied to common
front-ends, stereo decoders and AM receivers circuits.
All pin numbers mentioned in this data sheet refer to the
SO version (TDA1597T) unless otherwise specified.
QUICK REFERENCE DATA
ORDERING INFORMATION
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
P
supply voltage
7.5
8.5
12
V
I
P
supply current (l
2
= I
7
= 0)
-
20
26
mA
V
iIF(rms)
IF input sensitivity for limiting on pin 20
(RMS value)
14
22
35
V
V
oAF(rms)
AF output signal on pin 4 (RMS value)
180
200
220
mV
S/N
signal-to-noise ratio
f
m
= 400 Hz;
f =
75 kHz
-
82
-
dB
THD
total harmonic distortion
f
m
= 1 kHz;
f =
75 kHz
-
0.1
0.3
%
K2 adjustment and
FM-MUTE-OFF
-
0.07
0.25
%
T
amb
operating ambient temperature
-
40
-
+85
C
TYPE
NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TDA1597
DIP18
plastic dual in-line package; 18 leads (300 mil)
SOT102-1
TDA1597T
SO20
plastic small outline package; 20 leads; body width 7.5 mm
SOT163-1
1997 Feb 27
3
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1597
BLOCK DIAGRAM
handbook, full pagewidth
LEVEL
DETECT
OR
LIMITING
AMPLIFIER
V
O
L
T
A
GE
ST
ABILIZER
MODE
SWITCH
Q
U
ADRA
TURE
DEMODULA
T
O
R
LP
FIL
TER
1 MHz
THD
COMPENSA
TION
unw
eighted le
v
el
inf
or
mation
(FM-MUTE-ON)
adjustment
f
or minim
um
2nd har
monic
(FM-MUTE-OFF)
optional le
v
el shift
HP
FIL
TER
50 kHz
DETUNE
DETECT
OR
MUTE
A
TTENU
A
T
OR
V
int
V
ref
V
ref
V
P
(
+
8.5 V)
V
offset
V
int
V
int
V
ref
V
int
+
5 V
V
ref
V
ref
V
oAF
25
k
25 k
40 k
40
k
3.3
k
7.5
k
25 k
330
V
int
9 pF
22 nF
22 nF
19
(17)
18
(16)
17
(15)
13
(11)
16
(14)
15
(13)
14
(12)
(1)
20
(18)
SFE
FM-IF
input
9 pF
1(1)
2(2)
3(3)
4(4)
(2)
(3)
(4)
MPX signal
w
eighted le
v
el
inf
or
mation
FM-OFF
+-
MUTE-OFF
5(5)
6(6)
100 nF
7(7)
8(8)
9
47 nF
100
pF
25 k
25 k
ST
OP-0
ST
OP-1
n.c.
Q
L
=19
MED829
12
11 (10)
10
(9)
n.c.
2
TD
A1597T
Fig.1 Block diagram and application circuit.
The pin numbers given in parenthesis refer to the TDA1597.
(1)
Connecting pin
13 (11) to ground is only allowed to measure the current on pin
16 (14).
(2)
FM-MUTE-OFF.
(3)
FM-OFF.
(4)
FM-MUTE-ON.
1997 Feb 27
4
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1597
PINNING
SYMBOL
PIN
DESCRIPTION
DIP18
SO20
V
P
1
1
supply voltage (+8.5 V)
LVA
2
2
level adjustment for stop condition
ULV
3
3
unweighted level output/K2 adjustment
V
oAF
4
4
audio frequency output (MPX signal)
V
ref
5
5
reference voltage output
WLV
6
6
weighted level output
MODE
7
7
mode switch input
DDV
8
8
detune detector voltage
n.c.
-
9
not connected
DEMI1
9
10
demodulator input 1
DEMI2
10
11
demodulator input 2
n.c.
-
12
not connected
TSW
11
13
tau switch input
ST1
12
14
STOP-1, stop pulse output 1
ST0
13
15
STOP-0, stop pulse output 0
MUTE
14
16
muting voltage
GND
15
17
ground (0 V)
LFB1
16
18
IF limiter feedback 1
LFB2
17
19
IF limiter feedback 2
V
iIF
18
20
IF signal input
Fig.2 Pin configuration (DIP version).
handbook, halfpage
TDA1597
MED830
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
VP
LVA
ULV
WLV
MODE
DDV
DEMI1
VoAF
Vref
ViIF
DEMI2
TSW
ST1
ST0
MUTE
GND
LFB1
LFB2
Fig.3 Pin configuration (SO version).
handbook, halfpage
TDA1597T
MED831
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
VP
LVA
ULV
WLV
MODE
DDV
n.c.
DEMI1
VoAF
Vref
ViIF
n.c.
DEMI2
TSW
ST1
ST0
MUTE
GND
LFB1
LFB2
1997 Feb 27
5
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1597
FUNCTIONAL DESCRIPTION
The limiter amplifier has five stages of IF amplification
using balanced differential limiter amplifiers with emitter
follower coupling.
Decoupling of the stages from the supply voltage line and
an internal high-ohmic DC feedback loop gives a very
stable IF performance. The amplifier gain is virtually
independent of changes in temperature.
The FM demodulator is fully balanced and contains two
cross-coupled differential amplifiers.
The quadrature detection of the FM signal is performed by
direct feeding of one differential amplifier from the limiter
amplifier output and the other via an external 90 degrees
phase shifting network. The demodulator has a good
stability and a small zero cross-over shift. The bandwidth
of the demodulator output is restricted by an internal
low-pass filter to approximately 1 MHz. Non-linearities,
which are introduced by demodulation, are compensated
for by the THD compensation circuit. For this reason, the
demodulator resonance circuit (between pins 10 and 11)
must have a loaded Q-factor of 19.
Consequently, there is no need for the demodulator tuned
circuit to be adjusted for minimum distortion. Adjustment
criterion is a symmetrical stop pulse. The control voltage
for the mute attenuator (pin 16) is derived from the values
of the level detector and the detuning detector output
signals. The mute attenuator has a fast attack and a slow
decay, determined by the capacitor connected to pin 16.
The AF signal is fed via the mute attenuator to the output
(pin 4). A weighted control voltage (pin 6) is obtained from
the mute attenuator control voltage via a buffer amplifier
that introduces an additional voltage shift and gain.
The level detector generates a voltage output signal
proportional to the amplitude of the input signal.
The unweighted level detector output signal is available in
the FM-MUTE-ON condition (mode switch).
The open-collector tuning stop output voltages STOP-0
and STOP-1 (pins 15 and 14) are derived from the
detuning and the input signal level. Pins 14 and 15 may be
tied together if only one tuning-stop output is required.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
Note
1. Equivalent to discharging a 100 pF capacitor through a 1.5 k
series resistor.
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
V
P
supply voltage
-
0.3
+13
V
V
n
voltage at pins 2, 4, 5, 6, 10, 11 and 16
-
0.3
+10
V
voltage at pins 3, 7, 8, 14, 15, 18,
19 and 20
-
0.3
V
P
V
V
13
voltage on pin 13
-
6
V
I
14, 15
current at pins 14 and 15
-
2
mA
P
tot
total power dissipation
-
360
mW
T
stg
storage temperature
-
55
+150
C
T
amb
operating ambient temperature
-
40
+85
C
V
es
electrostatic handling
all pins except pins 5 and 7
note 1
-
2000
+2000
V
pin 5
note 1
-
2000
+800
V
pin 7
note 1
-
2000
+1000
V
1997 Feb 27
6
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1597
THERMAL CHARACTERISTICS
CHARACTERISTICS
V
P
= 8.5 V; T
amb
= 25
C; FM-MUTE-ON (I
7
= 0); f
IF
= 10.7 MHz; deviation
22.5 kHz with f
m
= 400 Hz;
V
i
= 10 mV (RMS) at pin 20; de-emphasis of 50
s; tuned circuit at pins 10 and 11 aligned for symmetrical stop pulses;
measurements taken in Fig.4; unless otherwise specified.
SYMBOL
PARAMETER
VALUE
UNIT
R
th j-a
thermal resistance from junction to ambient in free air
SOT102-1
80
K/W
SOT163-1
90
K/W
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
P
supply voltage
7.5
8.5
12
V
I
P
supply current
I
2
= I
7
= 0
-
20
26
mA
Mode switch input
I
7
input current
FM-MUTE-ON
-
0
-
mA
V
7
input voltage
FM-MUTE-ON
2.4
2.8
3.2
V
FM-MUTE-OFF
0.9V
ref
-
-
V
FM-OFF;
AF attenuation >60 dB
-
-
1.4
V
IF amplifier and demodulator
Z
i
demodulator input impedance
between pins 10 and 11
25
40
55
k
C
i
demodulator input capacitance
between pins 10 and 11
-
6
-
pF
AF output (pin 4)
R
o
output resistance
-
400
-
V
4
DC output voltage level
V
iIF
5
V (RMS) on pin 20
2.75
3.1
3.45
V
PSRR
power supply ripple rejection
(pin 4)
f = 1000 Hz;
V
ripple
= 50 mV (RMS)
33
36
-
dB
Tuning stop detector
f
STOP-0
detuning frequency for STOP-0
(pin 15)
V
15
3.5 V; see Fig.11
-
-
26
kHz
V
15
0.3 V; see Fig.11
38
-
-
kHz
f
STOP-1
detuning frequency for STOP-1
(pin 14)
V
14
3.5 V; see Fig.10
-
-
-
26
kHz
V
14
0.3 V; see Fig.10
-
38
-
-
kHz
V
20(rms)
dependence on input voltage for
STOP-0 and STOP-1
(RMS value)
V
14, 15
3.5 V; see Fig.9
250
-
-
V
V
14, 15
0.3 V; see Fig.9
-
-
50
V
V
14, 15
output voltage
I
14, 15
= 1 mA
-
-
0.3
V
Reference voltage source (pin 5)
V
ref
reference output voltage
I
5
=
-
1 mA
3.3
3.7
4.1
V
R
5
output resistance
I
5
=
-
1 mA
-
40
80
TC
temperature coefficient
-
3.3
-
mV/VK
1997 Feb 27
7
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1597
Note
1.
External muting
V
16
muting voltage at I
2
= 0
V
20
5
V (RMS); see Fig.12
1.45
1.75
2.05
V
V
20
= 1 mV (RMS)
3.0
3.45
3.9
V
S
steepness of control voltage
slope: 100
V
V
20
100 mV;
-
0.85
-
V/dec
Internal mute
; note 1
mute voltage
V
16
V
ref
-
0
-
dB
V
16
= 0.77V
ref
1.5
-
4.5
dB
V
16
= 0.55V
ref
-
20
-
dB
I
16
current for capacitor (pin 16)
charge current
V
13
= 0 V
-
-
8
-
A
discharge current
V
13
= 0 V
-
120
-
A
charge current
V
13
= V
ref
-
-
100
-
A
discharge current
V
13
= V
ref
-
120
-
A
Level detector
R
6
output resistance pin 6
-
-
500
V
6
output voltage at I
2
= 0
V
20
5
V (RMS); see Fig.14
0.1
-
1.1
V
V
20
= 1 mV (RMS)
3.0
-
4.2
V
200 kHz detuning
1.2
1.5
1.8
V
output voltage at V
2
= V
5
V
20
5
V (RMS)
-
-
0.3
V
V
6
output voltage at detuning
45 kHz detuning
-
-
0.2
V
TC
temperature coefficient
-
3.3
-
mV/VK
f
detuning frequency
V
6
= 1.8 V; see Fig.13
90
-
160
kHz
S
steepness of control voltage
slope: 50
V
V
20
50 mV;
1.4
1.7
2.0
V/dec
V
6
/
f
slope of output voltage at
detuning
f = 125
20 kHz
-
35
-
mV/kHz
S
level shift adjustments
range by pin 2
V
6
/V
ref
0.42
0.5
-
V/V
gain
-
V
6
/
V
2
-
1.7
-
V/V
range by pin 2
V
16
/V
ref
0.21
0.25
-
V/V
gain
-
V
16
/
V
2
-
0.85
-
V/V
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
20
V
20
log
20 dB
V
16
V
20
log
---------------------
=
20
V
20
log
20 dB
V
6
V
20
log
---------------------
=
20
V
4 FM
MUTE
OFF
(
)
V
4 FM
MUTE
ON
(
)
-------------------------------------------------------
log
=
1997 Feb 27
8
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1597
OPERATING CHARACTERISTICS
V
P
= 7.5 to 12 V; T
amb
= 25
C; FM-MUTE-ON (I
7
= 0); f
IF
= 10.7 MHz; deviation
22.5 kHz with f
m
= 400 Hz;
V
i
= 10 mV (RMS) at pin 20; de-emphasis of 50
s; tuned circuit at pins 10 and 11 aligned for symmetrical stop pulses;
measurements taken in Fig.4; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
IF amplifier and demodulator
V
i(rms)
input signal for start of limiting
(
-
3 dB) (RMS value; pin 20)
V
7
= V
ref
; FM-MUTE-OFF
14
22
35
V
input signal for signal-to-noise
ratio (RMS value)
f = 250 to 15000 Hz; V
7
= V
ref
S/N = 26 dB
-
15
-
V
S/N = 46 dB
-
60
-
V
S/N
signal-to-noise ratio
deviation
75 kHz
-
82
-
dB
V
o(rms)
AF output signal (RMS value;
pin 4)
180
200
220
mV
THD
total harmonic distortion without
de-emphasis
without detuning
deviation
75 kHz; f
m
= 1 kHz;
I
7
= 0
-
0.1
0.3
%
25 kHz detuning
deviation
75 kHz; f
m
= 1 kHz;
I
7
= 0
-
-
0.6
%
compensated via pin 3
deviation
75 kHz; f
m
= 1 kHz;
I
7
= 0; V
7
= V
ref
-
0.07
0.25
%
V
4
K2 adjustment
V
4
= V
4
(V
3
= 0)
-
V
4
(V
3
= V
ref
)
10
-
-
mV
AM
AM suppression on pin 4
V
7
= V
ref
; m = 30%
V
i
= 0.3 to 1000 mV (RMS)
on pin 20
46
55
-
dB
V
i
= 1 to 300 mV (RMS)
on pin 20
60
65
-
dB
Dynamic mute attenuation
; note 1
dynamic mute attenuation
deviation
75 kHz;
f
m
= 100 kHz; V
2
= 1 V
-
14
-
dB
1997 Feb 27
9
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1597
Note
1.
Tuning stop detector
f
STOP-0
detuning frequency for STOP-0
(pin 15)
V
15
3.5 V; see Fig.11
-
-
26
kHz
V
15
0.3 V; see Fig.11
38
-
-
kHz
f
STOP-1
detuning frequency for STOP-1
(pin 14)
V
14
3.5 V; see Fig.10
-
-
-
26
kHz
V
14
0.3 V; see Fig.10
-
38
-
-
kHz
V
20(rms)
dependence on input voltage for
STOP-0 and STOP-1
(RMS value)
V
14, 15
3.5 V; see Fig.9
250
-
-
V
V
14, 15
0.3 V; see Fig.9
-
-
50
V
R
8
internal low-pass resistance of
detune detector
12
25
50
k
V
8
voltage on capacitor
V
i
5
V (RMS) on input pin 20;
I
7
= 0
-
2.2
-
V
Level detector (I
2
= 0)
V
6
output voltage
V
20
5
V (RMS)
0.1
-
1.1
V
V
20
= 1 mV (RMS)
3.0
-
4.2
V
Reference voltage source (pin 5)
V
ref
reference output voltage
I
5
=
-
1 mA
3.3
3.7
4.1
V
Operation with AM-IF
Level and stop information (on pins 6, 13, 14, 15 and 16) is provided for the modes FM-MUTE-ON and
FM-MUTE-OFF. This information is also available in the FM-OFF mode when an AM-IF signal is input (for example
455 kHz). This can also provide a valid detuning information when a suitable AM-IF resonance circuit is provided for
demodulator (see Fig.18).
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
20
V
4 FM
MUTE
OFF
(
)
V
4 FM
MUTE
ON
(
)
-------------------------------------------------------
log
=
1997 Feb 27
10
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1597
Fig.4 Test circuit.
The pin numbers given in parenthesis refer to the TDA1597.
switch S4 (MODE):
(1) FM-MUTE-OFF.
(2) FM-MUTE-ON.
(3) FM-OFF.
handbook, full pagewidth
MED832
(1)
1
(2)
2
(3)
3
20
(18)
(4)
4
(5)
5
(6)
6
(7)
7
S4
100
nF
(1)
(3)
(2)
(8)
8
(9)
10
11
(10)
12
+
5 V
STOP-1
STOP-0
Vmute
13
(11)
14
(12)
15
(13)
16
(14)
17
(15)
9
n.c.
n.c.
level (weighted)
level (unweighted)
VoAF (unweighted)
VoAF (weighted)
Vref (3.7 V)
10
220 k
3.9 k
10 k
S3
S2
4.7
nF
100 nF
(
+
8.5 V)
VP
S1
3.3
k
100
pF
220
nF
47
nF
22 nF
IF = 10.7 MHz
22 nF
R1
150
R2
50
27
k
18
(16)
19
(17)
27
k
IF
QL = 19
TDA1597T
1997 Feb 27
11
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1597
Fig.5
FM-MUTE-ON: Audio signal and noise as functions of the input signal V
iIF
(pin 20) with
f =
22.5 kHz;
f
m
= 1 kHz; de-emphasis 50
s.
(1) Audio signal.
(2) Noise.
0
10
-
6
10
-
5
10
-
4
10
-
3
10
-
2
10
-
1
1
MBE519
-
20
-
40
-
60
-
80
-
100
Vi20 (rms) (V)
V4
(dB)
(1)
(2)
Fig.6
FM-MUTE-OFF: Audio signal and noise as functions of the input signal V
iIF
(pin 20) with
f =
22.5 kHz;
f
m
= 1 kHz; de-emphasis 50
s.
(1) Audio signal.
(2) Noise.
handbook, full pagewidth
20
V4
(dB)
-
20
-
40
-
60
-
80
0
MEH071
10
-
6
10
-
5
10
-
4
10
-
3
10
-
2
10
-
1
1
(1)
(2)
Vi20 (rms) (V)
1997 Feb 27
12
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1597
0
10
-
6
10
-
5
10
-
4
10
-
3
10
-
2
10
-
1
1
MBE520
-
20
-
40
-
60
-
80
-
100
Vi20 (rms) (V)
V4
(dB)
(1)
(2)
Fig.7
FM-MUTE-ON: Typical AM suppression as a function of the input signal V
iIF
(pin 20) with
f =
22.5 kHz;
f
m
= 1 kHz; AM with f
m
= 400 Hz; m = 0.3 and 250 to 15000 Hz bandwidth.
(1) Audio signal.
(2) Spurious AM signal.
Fig.8
FM-MUTE-OFF: Typical AM suppression as a function of the input signal V
iIF
(pin 20) with
f =
22.5 kHz;
f
m
= 1 kHz; AM with f
m
= 400 Hz; m = 0.3 and 250 to 15000 Hz bandwidth.
(1) Audio signal.
(2) Spurious AM signal.
handbook, full pagewidth
20
V4
(dB)
-
20
-
40
-
60
-
80
0
MEH073
10
-
6
10
-
5
10
-
4
10
-
3
10
-
2
10
-
1
1
(1)
(2)
Vi20 (rms) (V)
1997 Feb 27
13
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1597
Fig.9 STOP-0 and STOP-1 output voltage dependent on input signal V
iIF
(pin 20).
handbook, full pagewidth
10
V14, 15
(12, 13)
(V)
0
2
4
6
8
MEH074
10
-
6
10
-
5
10
-
4
10
-
3
10
-
2
10
-
1
1
Vi20 (rms (V)
Fig.10 STOP-1 output voltage dependent on
V
iIF
= 10 mV (RMS) (pin 20).
handbook, halfpage
10
0
8
6
4
2
MED833
detune (kHz)
V14(12)
(V)
-
40
-
30
-
20
-
10
10
20
0
Fig.11 STOP-0 output voltage dependent on
V
iIF
= 10 mV (RMS) (pin 20).
handbook, halfpage
10
0
8
6
4
2
MEH075
detune (kHz)
V15(13)
(V)
-
20
-
10
10
20
30
40
0
1997 Feb 27
14
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1597
Fig.12 External mute voltage V
16(14)
dependent on input signal V
iIF
(pin 20); typical adjusting range.
(1) V
2
= 0 V.
(2) I
2
= 0 mA.
(3) V
2
= V
ref
.
handbook, full pagewidth
10
V16(14)
(V)
0
2
4
6
8
MEH076
10
-
6
10
-
5
10
-
4
10
-
3
10
-
2
10
-
1
1
(1)
(2)
(3)
Vi20 (rms) (V)
Fig.13 Mute voltage V
16(14)
dependent on detuning; V
iIF
= 10 mV (RMS).
handbook, full pagewidth
detune (kHz)
10
0
-
400
-
300
V16(14)
(V)
-
200
-
100
100
0
200
300
400
2
4
6
8
MEH079
1997 Feb 27
15
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1597
Fig.14 Control voltage V
6
dependent on input signal V
iIF
(pin 20); typical adjusting range.
(1) V
2
= 0 V.
(2) I
2
= 0 mA.
(3) V
2
= V
ref
.
10
0
10
-
6
10
-
5
10
-
4
10
-
3
10
-
2
10
-
1
1
MBE516
2
4
6
8
Vi20 (rms) (V)
V6
(V)
(1)
(2)
(3)
Fig.15 Control voltage V
6
dependent on detuning; V
iIF
= 10 mV (RMS).
handbook, full pagewidth
detune (kHz)
10
0
-
400
-
300
V6
(V)
-
200
-
100
100
0
200
300
400
2
4
6
8
MED834
1997 Feb 27
16
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1597
Fig.16 Level output voltage V
3
dependent on input signal V
iIF
(pin 20); typical adjusting range.
(1) V
2
= 0 V.
(2) I
2
= 0 mA.
(3) V
2
= V
ref
.
10
0
10
-
6
10
-
5
10
-
4
10
-
3
10
-
2
10
-
1
1
MBE517
2
4
6
8
Vi20 (rms) (V)
(V)
V3
(1)
(2)
(3)
Fig.17 Total harmonic distortion dependent on detuning at FM-MUTE-ON;
f =
75 kHz; f
m
= 1 kHz;
V
iIF
= 10 mV.
handbook, full pagewidth
0.5
0
-
80
-
60
-
40
-
20
0
20
40
60
80
MBE518
0.1
0.2
0.3
0.4
detune (kHz)
THD
(%)
1997 Feb 27
17
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1597
APPLICATION INFORMATION
Fig.18 Interface for AM stop pulse application (SO version).
handbook, full pagewidth
MED836
12
3
20
4
BAW62
567
8
1
0
11
tuned to AM-IF
12
13
14
15
16
17
9
15
k
560
pF
22 nF
22 nF
22 nF
SFE
FM-IF
300
AM-IF
HIGH = FM
LOW = AM
tuned to FM-IF
3.3
k
100
pF
18
19
TDA1597T
12
3
20
4567
8
1
0
11
12
13
14
15
16
17
9
18
19
TDA1572T
STOP-1
STOP-0
1 k
1997 Feb 27
18
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1597
Fig.19 Interface for AM stop pulse application (DIP version).
handbook, full pagewidth
MED837
12
3
18
4
BAW62
567
8
10
tuned to AM-IF
11
12
13
14
15
9
15
k
560
pF
22 nF
22 nF
22 nF
SFE
FM-IF
300
AM-IF
HIGH = FM
LOW = AM
tuned to FM-IF
3.3
k
100
pF
16
17
TDA1597
12
3
18
4567
8
10
11
12
13
14
15
9
16
17
TDA1572
STOP-1
STOP-0
1 k
1997 Feb 27
19
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1597
PACKAGE OUTLINES
REFERENCES
OUTLINE
VERSION
EUROPEAN
PROJECTION
ISSUE DATE
IEC
JEDEC
EIAJ
SOT102-1
93-10-14
95-01-23
UNIT
A
max.
1
2
b
1
(1)
(1)
(1)
b
2
c
D
E
e
M
Z
H
L
mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
A
min.
A
max.
b
max.
w
M
E
e
1
1.40
1.14
0.53
0.38
0.32
0.23
21.8
21.4
6.48
6.20
3.9
3.4
0.254
2.54
7.62
8.25
7.80
9.5
8.3
0.85
4.7
0.51
3.7
inches
0.055
0.044
0.021
0.015
0.013
0.009
1.40
1.14
0.055
0.044
0.86
0.84
0.26
0.24
0.15
0.13
0.01
0.10
0.30
0.32
0.31
0.37
0.33
0.033
0.19
0.020
0.15
M
H
c
(e )
1
M
E
A
L
seating plane
A
1
w
M
b
1
b
2
e
D
A
2
Z
18
1
10
9
b
E
pin 1 index
0
5
10 mm
scale
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
DIP18: plastic dual in-line package; 18 leads (300 mil)
SOT102-1
1997 Feb 27
20
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1597
UNIT
A
max.
A
1
A
2
A
3
b
p
c
D
(1)
E
(1)
(1)
e
H
E
L
L
p
Q
Z
y
w
v
REFERENCES
OUTLINE
VERSION
EUROPEAN
PROJECTION
ISSUE DATE
IEC
JEDEC
EIAJ
mm
inches
2.65
0.30
0.10
2.45
2.25
0.49
0.36
0.32
0.23
13.0
12.6
7.6
7.4
1.27
10.65
10.00
1.1
1.0
0.9
0.4
8
0
o
o
0.25
0.1
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
Note
1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.
1.1
0.4
SOT163-1
92-11-17
95-01-24
10
20
w
M
b
p
detail X
Z
e
11
1
D
y
0.25
075E04
MS-013AC
pin 1 index
0.10
0.012
0.004
0.096
0.089
0.019
0.014
0.013
0.009
0.51
0.49
0.30
0.29
0.050
1.4
0.055
0.42
0.39
0.043
0.039
0.035
0.016
0.01
0.25
0.01
0.004
0.043
0.016
0.01
0
5
10 mm
scale
X
A
A
1
A
2
H
E
L
p
Q
E
c
L
v
M
A
(A )
3
A
SO20: plastic small outline package; 20 leads; body width 7.5 mm
SOT163-1
1997 Feb 27
21
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1597
SOLDERING
Plastic dual in-line packages
B
Y DIP OR WAVE
The maximum permissible temperature of the solder is
260
C; this temperature must not be in contact with the
joint for more than 5 s. The total contact time of successive
solder waves must not exceed 5 s.
The device may be mounted up to the seating plane, but
the temperature of the plastic body must not exceed the
specified storage maximum. If the printed-circuit board has
been pre-heated, forced cooling may be necessary
immediately after soldering to keep the temperature within
the permissible limit.
R
EPAIRING SOLDERED JOINTS
Apply a low voltage soldering iron below the seating plane
(or not more than 2 mm above it). If its temperature is
below 300
C, it must not be in contact for more than 10 s;
if between 300 and 400
C, for not more than 5 s.
Plastic small outline packages
B
Y WAVE
During placement and before soldering, the component
must be fixed with a droplet of adhesive. After curing the
adhesive, the component can be soldered. The adhesive
can be applied by screen printing, pin transfer or syringe
dispensing.
Maximum permissible solder temperature is 260
C, and
maximum duration of package immersion in solder bath is
10 s, if allowed to cool to less than 150
C within 6 s.
Typical dwell time is 4 s at 250
C.
A modified wave soldering technique is recommended
using two solder waves (dual-wave), in which a turbulent
wave with high upward pressure is followed by a smooth
laminar wave. Using a mildly-activated flux eliminates the
need for removal of corrosive residues in most
applications.
B
Y SOLDER PASTE REFLOW
Reflow soldering requires the solder paste (a suspension
of fine solder particles, flux and binding agent) to be
applied to the substrate by screen printing, stencilling or
pressure-syringe dispensing before device placement.
Several techniques exist for reflowing; for example,
thermal conduction by heated belt, infrared, and
vapour-phase reflow. Dwell times vary between 50 and
300 s according to method. Typical reflow temperatures
range from 215 to 250
C.
Preheating is necessary to dry the paste and evaporate
the binding agent. Preheating duration: 45 min at 45
C.
R
EPAIRING SOLDERED JOINTS
(
BY HAND
-
HELD SOLDERING
IRON OR PULSE
-
HEATED SOLDER TOOL
)
Fix the component by first soldering two, diagonally
opposite, end pins. Apply the heating tool to the flat part of
the pin only. Contact time must be limited to 10 s at up to
300
C. When using proper tools, all other pins can be
soldered in one operation within 2 to 5 s at between 270
and 320
C. (Pulse-heated soldering is not recommended
for SO packages.)
For pulse-heated solder tool (resistance) soldering of VSO
packages, solder is applied to the substrate by dipping or
by an extra thick tin/lead plating before package
placement.
1997 Feb 27
22
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1597
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.
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.
1997 Feb 27
23
Philips Semiconductors
Product specification
IF amplifier/demodulator for FM radio receivers
TDA1597
NOTES
Internet: http://www.semiconductors.philips.com
Philips Semiconductors a worldwide company
Philips Electronics N.V. 1997
SCA53
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
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under patent- or other industrial or intellectual property rights.
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Printed in The Netherlands
547027/1200/03/pp24
Date of release: 1997 Feb 27
Document order number:
9397 750 01143
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