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ICs for TV
AN5829S
Sound multiplex decoder IC for the U.S. televisions
■ Overview
The AN5829S is a multiplex sound demodulation IC
dedicated to the U.S. television and incorporates a bidirectional I
2
C interface (adjustment, mode SW), an AGC
circuit and external stereo input switches (2 systems).
■ Features
• Stereo demodulation, SAP demodulation, dbx noise re-
duction, AGC, external stereo input SW and I
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
= 5 V, I
CC
TOT
2
C bus
= 18 mA)
■ Applications
• Televisions and VCRs for the North American market
0.3
0.4± 0.25 0.45 1.27
10
11
12
0.1± 0.1
1
2
3
4
5
6
7
8
9
24
23
22
21
20
19
18
17
16
15
14
13
7.2± 0.3
9.4± 0.3
SOP024-P-0375A
Unit: mm
0.15
0.925
15.3± 0.3
2.0± 0.2
1
AN5829S ICs for T V
■ Block Diagram
R out
L out
1
22
21
4
20
PE
ZAP
Out SW
18
SCL
C
2
I
SDA
19
Decoder
AGC
Offset
24
DAC
cancel
AUX2 L
23
Matrix
AUX2 R
2
AUX1 L
3
AUX1 R
5
Offset
cancel
8
filter
Wide band
RMS det.
Wide band
expand
Wide band
6
11
filter
Spectral
Spectral
RMS det.
expand
Spectral
10
9
dbx
De-emph.
switch
(L− R)/SAP
H
, 2f
H
f
Trap filter
GND
V
CC
15
16
17
7
L+ R
L+ R
filter
demod
75 µ s
De-emph.
Pilot det.
Pilot
cancel
St. PLL
filter
Stereo
L− R
L− R
filter
demod
Input VCA
14
MPX in
filter
SAP out
SAP
demod
SAP
filter
SAP
det.
det.
Noise
filter
Noise
12
13
2
ICs for TV AN5829S
■ Pin Descriptions
Pin No. Description
1 AGC timing
2 External input 1 L-ch
3 External input 1 R-ch
4 75 µs filter offset cancel
5 dbx offset cancel
6 Wideband timing
7V
CC
8 Wideband level sensor input
9 Spectral filter
10 Spectral timing
11 Spectral level sensor input
12 SAP noise level detection
■ Absolute Maximum Ratings
Parameter Symbol Rating Unit
Supply voltage V
Supply current I
Power dissipation
Operating ambient temperature
Storage temperature
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 Ta = 25° C.
*
2: Ta = 75° C
*
*2
1
*
*1
CC
CC
P
D
T
opr
T
stg
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.
6.0 V
25 mA
150 mW
−20 to +75 °C
−55 to +125 °C
■ Recommended Operating Range
Parameter Symbol Range Unit
Supply voltage V
CC
4.5 to 5.5 V
3
AN5829S ICs for T V
■ Electrical Characteristics at VCC = 5 V, NR: On,Ta = 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)
Parameter Symbol Conditions Min Typ Max Unit
Total circuit current I
Mono output level V
Mono frequency characteristics-1
Mono frequency characteristics-2
Mono distortion ratio
Mono noise level V
(L), (R) output voltage difference
0(MON)
V
1(MON)
V
2(MON)
THD
N(MON)
V
LR(MON)
Stereo output level V
Stereo frequency characteristics-1
Stereo frequency characteristics-2
Stereo frequency characteristics-3
V
V
V
Stereo distortion ratio THD
Stereo noise level V
Stereo discrimination level V
Stereo discrimination hysteresis V
SAP output level V
SAP frequency characteristics-1 V
SAP frequency characteristics-2 V
SAP distortion ratio
SAP noise level V
SAP discrimination level V
SAP discrimination hysteresis V
N(ST)
TH(ST)
HY(ST)
0(SAP)
1(SAP)
2(SAP)
THD
N(SAP)
TH(SAP)
HY(SAP)
SAP → Stereo crosstalk C
Stereo → SAP crosstalk C
SAP → Mono crosstalk C
Mono → SAP crosstalk C
AUX 1, AUX 2 to INT C
crosstalk
INT, AUX 2 to AUX 1 C
crosstalk EXT: f = 1 kHz, 500 mV[rms]
INT, AUX 1 to AUX 2 C
crosstalk EXT: f = 1 kHz, 500 mV[rms]
No signal 11 18 25 mA
CC
f = 1 kHz, (mono) 100%mod 430 480 5 3 0
mV[rms]
f = 300 Hz, (mono) 30%mod − 0.5 0 0.5 dB
f = 8 kHz, (mono) 30%mod − 1.2 − 0.1 0.7 dB
f = 1 kHz, (mono) 100%mod 0.7 %
(MON)
Input short-circuit, BPF (A curve) − 60 dBV
f = 1 kHz, (mono) 100%mod − 0.5 0 0.5 dB
f = 1 kHz, (L(R)-only) 100%mod 380 480 580
0(ST)
f = 300 Hz, (L(R)-only) 30%mod − 0.7 0 0.7 dB
1(ST)
f = 3 kHz, (L(R)-only) 30%mod − 10 1 d B
2(ST)
f = 8 kHz, (L(R)-only) 30%mod − 2.5 − 0.5 1.5 dB
3(ST)
f = 1 kHz, (L(R)-only) 100%mod 1%
(ST)
mV[rms]
f = 15.73 kHz, (fH), 15 mV[rms] − 60 dBV
fH, 2 fH Trap+BPF
f = 15.73 kHz (fH)4 8 1 3
mV[rms]
f = 15.73 kHz (fH) 0.5 5d B
f = 1 kHz, (SAP) 100%mod 370 500 6 8 0
mV[rms]
f = 300 Hz, (SAP) 30%mod −10 1 d B
f = 3 kHz, (SAP) 30%mod −2.5 − 0.5 1 dB
f = 1 kHz, (SAP) 100% 1.5 %
(SAP)
f = 78.7 kHz, (5fH),V= 45 mV[rms], BPF
f = 78.7 kHz, (5fH)1 1 26
− 70 dBV
mV[rms]
f = 78.7 kHz, (5fH) 0.5 5d B
(SAP)1 kHz, 100%mod − 50 dB
T1
(Stereo) pilot-signal
(Stereo) 1 kHz, 100%mod − 50 dB
T2
(SAP) carrier-signal
(SAP) 1 kHz, 100%mod − 50 dB
T3
(Mono) 1 kHz, 100%mod − 56 dB
T4
(SAP) carrier-signal
f = 1 kHz, VIN = 500 mV[rms] 50 dB
T5
INT: (mono) 1 kHz, 100%mod 50 dB
T6
INT: (mono) 1 kHz, 100%mod 50 dB
T7
4
ICs for TV AN5829S
■ Electrical Characteristics at VCC = 5 V, NR: On,Ta = 25 ° C (continued)
Parameter Symbol Conditions Min Typ Max Unit
1
AGC gain 1
AGC gain 2
I2 C interface
Sink current at ACK I
SCL, SDA signal input high level
SCL, SDA signal input low level
Input available maximum frequency
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.
Stereo separation (100%)-1 Sep
Stereo separation (100%)-2 Sep
Stereo separation (100%)-3 Sep
Stereo separation (100%)-4 Sep
Stereo separation (30%)-1 Sep
Stereo separation (30%)-2 Sep
Stereo separation (30%)-3 Sep
Stereo separation (30%)-4 Sep
Stereo separation (10%)-1 Sep
Stereo separation (10%)-2 Sep
Stereo separation (10%)-3 Sep
Stereo separation (10%)-4 Sep
I2 C interface
Bus free before start t
Start condition set-up time t
Start condition hold time t
Low period SCL, SDA t
High period SCL t
Rise time SCL, SDA t
Fall time SCL, SDA t
Data set-up time (write) t
Data hold time (write) t
Acknowledge set-up time t
Acknowledge hold time t
Stop condition set-up time t
*
1
*
V
V
AGC1
AGC2
ACK
V
V
f
Imax
f = 1 kHz, V
f = 1 kHz, V
= 50 mV[rms] 67 100 140
IN(EXT)
= 500 mV[rms] 180 2 70 390
IN(EXT)
Maximum pin 2 sink current at ACK 1 2 20 mA
3.5 5.0 V
IHI
0 0.9 V
ILO
100 kbit/s
mV[rms]
mV[rms]
Parameter Symbol Conditions Min Typ Max Unit
f = 300 Hz, (L(R)-only) 100%mod 20 35 dB
100-1
f = 1 kHz, (L(R)-only) 100 %mod 17 28 dB
100-2
f = 3 kHz, (L(R)-only) 100%mod 20 35 dB
100-3
f = 8 kHz, (L(R)-only) 100%mod 10 18 dB
100-4
f = 300 Hz, (L(R)-only) 30%mod 22 35 dB
30-1
f = 1 kHz, (L(R)-only) 30%mod 20 35 dB
30-2
f = 3 kHz, (L(R)-only) 30%mod 22 35 dB
30-3
f = 8 kHz, (L(R)-only) 30%mod 14 22 dB
30-4
f = 300 Hz, (L(R)-only) 10%mod 20 35 dB
10-1
f = 1 kHz, (L(R)-only) 10%mod 20 35 dB
10-2
f = 3 kHz, (L(R)-only) 10%mod 20 30 dB
10-3
f = 8 kHz, (L(R)-only) 10%mod 14 22 dB
10-4
BUF
SU.STA
HD.STA
SU.DAT
HD.DAT
SU.ACK
HD.ACK
SU.STO
4.0 µs
4.0 µs
4.0 µs
4.0 µs
LO
4.0 µ s
HI
1.0 µ s
r
0.35 µ s
f
0.25 µs
0.3 µs
3.5 µs
0 µs
4.0 µs
5
AN5829S ICs for T V
■ Electrical Characteristics at VCC = 5 V, NR: On,Ta = 25 ° C (continued)
Start
condition
SDA
SCL
t
BUF
t
SU.DAT
Slave
address
t
HD.DAT
ACK ACK ACK
Sub
address
Data
byte
t
SU.STO
Stop
condition
t
LO
t
SU.STAtHDSTAtrtf
t
t
HI
LO
■ Terminal Equivalent Circuits
Pin No. Equivalent circuit Description DC voltage (V)
1 AGC: 0.5 to 2.0
51 kΩ
1
425 Ω
500 Ω
2 AUXIL: 2.2
2
20.7 kΩ
13.8 kΩ
V
CC
AGC level sensor pin
GND
V
CC
External input1
L-ch input pin
2.2 V
GND
3 AUXIR: 2.2
V
CC
External input 1
R-ch input pin
3
20.7 kΩ
13.8 kΩ
2.2 V
GND
6