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ICs for TV
1
AN5829S
Sound multiplex decoder IC for the U.S. televisions
s
Overview
The AN5829S is a multiplex sound demodulation IC
dedicated to the U.S. television and incorporates a bi-
directional I
2
C interface (adjustment, mode SW), an AGC
circuit and external stereo input switches (2 systems).
s
Features
Stereo demodulation, SAP demodulation, dbx noise re-
duction, AGC, external stereo input SW and I
2
C bus
interface are integrated in a single chip
Bi-directional I
2
C bus makes it possible to monitor
MPX input level, separation adjustment (3 places), mode
changeover and receiving status.
Eliminated external parts (multi-sound block: 21 pieces
14 pieces
Lower power dissipation (V
CC
=
5 V, I
TOT
=
18 mA)
s
Applications
Televisions and VCRs for the North American market
SOP024-P-0375A
Unit: mm
1
0.4
0.25
0.45
1.27
0.1
0.1
0.3
7.2
0.3
9.4
0.3
0.15
0.925
2.0
0.2
15.3
0.3
2
3
4
5
6
9
10
11
12
7
8
13
14
15
16
17
18
19
20
21
22
23
24
AN5829S
ICs for TV
2
s
Block Diagram
GND
V
CC
A
UX2 L
PE
SCL
SD
A
A
UX2 R
A
UX1 L
A
UX1 R
MPX in
R out
L out
20
1
22
21
4
15
16
17
7
14
18
19
24
23
2
3
5
8
6
11
10
9
13
12
ZAP
I
2
C
Decoder
W
ide band
f
ilter
Spectral
f
ilter
W
ide band
RMS det.
Spectral
RMS det.
W
ide band
e
xpand
Spectral
e
xpand
dbx
De-emph.
(L
-
R)/SAP
switch
Of
fset
cancel
75
s
De-emph.
L
+
R
f
ilter
Pilot
cancel
L
-
R
f
ilter
SAP out
f
ilter
Pilot det.
L
+
R
demod
St. PLL
L
-
R
demod
SAP
demod
Noise
det.
Noise
f
ilter
SAP
f
ilter
Input VCA
SAP
det.
Stereo
f
ilter
f
H
, 2f
H
T
rap f
ilter
DAC
Out SW
AG
C
Matrix
Of
fset
cancel
ICs for TV
AN5829S
3
s
Pin Descriptions
Pin No.
Description
1
AGC timing
2
External input 1 L-ch
3
External input 1 R-ch
4
75
s filter offset cancel
5
dbx offset cancel
6
Wideband timing
7
V
CC
8
Wideband level sensor input
9
Spectral filter
10
Spectral timing
11
Spectral level sensor input
12
SAP noise level detection
Parameter
Symbol
Rating
Unit
Supply voltage
V
CC
6.0
V
Supply current
I
CC
25
mA
Power dissipation
*2
P
D
150
mW
Operating ambient temperature
*1
T
opr
-
20 to
+
75
C
Storage temperature
*1
T
stg
-
55 to
+
125
C
s
Absolute Maximum Ratings
Note) The use of this IC, which builds in dbx-TV noise reduction, requires a license agreement with THAT Corporation.
*1: Except fot the operating ambient temperature and storage temperature, all ratings are for T
a
=
25
C.
*2: T
a
=
75
C
s
Recommended Operating Range
Pin No.
Description
13
SAP carrier detection
14
Composite input
15
Pilot signal detection
16
Stereo PLL filter
17
GND
18
SCL
19
SDA
20
PE for ZAP
21
L-ch output
22
R-ch output
23
External input 2 R-ch.
24
External input 2 L-ch.
Parameter
Symbol
Range
Unit
Supply voltage
V
CC
4.5 to 5.5
V
AN5829S
ICs for TV
4
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Total circuit current
I
CC
No signal
11
18
25
mA
Mono output level
V
0(MON)
f
=
1 kHz, (mono) 100%mod
430
480
530
mV[rms]
Mono frequency characteristics-1 V
1(MON)
f
=
300 Hz, (mono) 30%mod
-
0.5
0
0.5
dB
Mono frequency characteristics-2 V
2(MON)
f
=
8 kHz, (mono) 30%mod
-
1.2
-
0.1
0.7
dB
Mono distortion ratio
THD
(MON)
f
=
1 kHz, (mono) 100%mod
0.7
%
Mono noise level
V
N(MON)
Input short-circuit, BPF (A curve)
-
60
dBV
(L), (R) output voltage difference V
LR(MON)
f
=
1 kHz, (mono) 100%mod
-
0.5
0
0.5
dB
Stereo output level
V
0(ST)
f
=
1 kHz, (L(R)-only) 100%mod
380
480
580
mV[rms]
Stereo frequency characteristics-1 V
1(ST)
f
=
300 Hz, (L(R)-only) 30%mod
-
0.7
0
0.7
dB
Stereo frequency characteristics-2 V
2(ST)
f
=
3 kHz, (L(R)-only) 30%mod
-
1
0
1
dB
Stereo frequency characteristics-3 V
3(ST)
f
=
8 kHz, (L(R)-only) 30%mod
-
2.5
-
0.5
1.5
dB
Stereo distortion ratio
THD
(ST)
f
=
1 kHz, (L(R)-only) 100%mod
1
%
Stereo noise level
V
N(ST)
f
=
15.73 kHz, (f
H
), 15 mV[rms]
-
60
dBV
f
H
, 2 f
H
Trap
+
BPF
Stereo discrimination level
V
TH(ST)
f
=
15.73 kHz (f
H
)
4
8
13
mV[rms]
Stereo discrimination hysteresis V
HY(ST)
f
=
15.73 kHz (f
H
)
0.5
5
dB
SAP output level
V
0(SAP)
f
=
1 kHz, (SAP) 100%mod
370
500
680
mV[rms]
SAP frequency characteristics-1 V
1(SAP)
f
=
300 Hz, (SAP) 30%mod
-
1
0
1
dB
SAP frequency characteristics-2 V
2(SAP)
f
=
3 kHz, (SAP) 30%mod
-
2.5
-
0.5
1
dB
SAP distortion ratio
THD
(SAP)
f
=
1 kHz, (SAP) 100%
1.5
%
SAP noise level
V
N(SAP)
f
=
78.7 kHz, (5f
H
),V
=
45 mV[rms], BPF
-
70
dBV
SAP discrimination level
V
TH(SAP)
f
=
78.7 kHz, (5f
H
)
11
26
mV[rms]
SAP discrimination hysteresis
V
HY(SAP)
f
=
78.7 kHz, (5f
H
)
0.5
5
dB
SAP
Stereo crosstalk
C
T1
(SAP)1 kHz, 100%mod
-
50
dB
(Stereo) pilot-signal
Stereo
SAP crosstalk
C
T2
(Stereo) 1 kHz, 100%mod
-
50
dB
(SAP) carrier-signal
SAP
Mono crosstalk
C
T3
(SAP) 1 kHz, 100%mod
-
50
dB
Mono
SAP crosstalk
C
T4
(Mono) 1 kHz, 100%mod
-
56
dB
(SAP) carrier-signal
AUX 1, AUX 2 to INT
C
T5
f
=
1 kHz, V
IN
=
500 mV[rms]
50
dB
crosstalk
INT, AUX 2 to AUX 1
C
T6
INT: (mono) 1 kHz, 100%mod
50
dB
crosstalk
EXT: f
=
1 kHz, 500 mV[rms]
INT, AUX 1 to AUX 2
C
T7
INT: (mono) 1 kHz, 100%mod
50
dB
crosstalk
EXT: f
=
1 kHz, 500 mV[rms]
s
Electrical Characteristics at V
CC
=
5 V, NR: On,T
a
=
25
C
Input level (at 100% modulation) L
+
R: 75 mV[rms] (pre-emphasis off)
L
-
R: 150 mV[rms] (dbx noise reduction off)
Pilot: 15 mV[rms]
SAP: 45 mV[rms] (dbx noise reduction off)
ICs for TV
AN5829S
5
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Stereo separation (100%)-1
Sep
100-1
f
=
300 Hz, (L(R)-only) 100
%
mod
20
35
dB
Stereo separation (100%)-2
Sep
100-2
f
=
1 kHz, (L(R)-only) 100
%
mod
17
28
dB
Stereo separation (100%)-3
Sep
100-3
f
=
3 kHz, (L(R)-only) 100
%
mod
20
35
dB
Stereo separation (100%)-4
Sep
100-4
f
=
8 kHz, (L(R)-only) 100
%
mod
10
18
dB
Stereo separation (30%)-1
Sep
30-1
f
=
300 Hz, (L(R)-only) 30
%
mod
22
35
dB
Stereo separation (30%)-2
Sep
30-2
f
=
1 kHz, (L(R)-only) 30
%
mod
20
35
dB
Stereo separation (30%)-3
Sep
30-3
f
=
3 kHz, (L(R)-only) 30
%
mod
22
35
dB
Stereo separation (30%)-4
Sep
30-4
f
=
8 kHz, (L(R)-only) 30
%
mod
14
22
dB
Stereo separation (10%)-1
Sep
10-1
f
=
300 Hz, (L(R)-only) 10
%
mod
20
35
dB
Stereo separation (10%)-2
Sep
10-2
f
=
1 kHz, (L(R)-only) 10
%
mod
20
35
dB
Stereo separation (10%)-3
Sep
10-3
f
=
3 kHz, (L(R)-only) 10
%
mod
20
30
dB
Stereo separation (10%)-4
Sep
10-4
f
=
8 kHz, (L(R)-only) 10
%
mod
14
22
dB
I
2
C interface
Bus free before start
t
BUF
4.0
s
Start condition set-up time
t
SU.STA
4.0
s
Start condition hold time
t
HD.STA
4.0
s
Low period SCL, SDA
t
LO
4.0
s
High period SCL
t
HI
4.0
s
Rise time SCL, SDA
t
r
1.0
s
Fall time SCL, SDA
t
f
0.35
s
Data set-up time (write)
t
SU.DAT
0.25
s
Data hold time (write)
t
HD.DAT
0.3
s
Acknowledge set-up time
t
SU.ACK
3.5
s
Acknowledge hold time
t
HD.ACK
0
s
Stop condition set-up time
t
SU.STO
4.0
s
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
AGC gain 1
*1
V
AGC1
f
=
1 kHz, V
IN(EXT)
=
50 mV[rms]
67
100
140
mV[rms]
AGC gain 2
*1
V
AGC2
f
=
1 kHz, V
IN(EXT)
=
500 mV[rms]
180
270
390
mV[rms]
I
2
C interface
Sink current at ACK
I
ACK
Maximum pin 2 sink current at ACK
1
2
20
mA
SCL, SDA signal input high level
V
IHI
3.5
5.0
V
SCL, SDA signal input low level
V
ILO
0
0.9
V
Input available maximum frequency
f
Imax
100
kbit/s
s
Electrical Characteristics at V
CC
=
5 V, NR: On,T
a
=
25
C (continued)
Note) *1: 00H register: D7
=
0, D6
=
1
Design reference data
Note) The characteristics listed below are theoretical values based on the IC design and are not guaranteed.
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