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M61529FP
Audio Signal Processor with Surround
REJ03F0010-0100Z
Rev.1.00
Sep.04.2003
Description
M61529FP is the semiconductor integrated circuit for Home Audio. M61529FP includes 2ch electronic volume,
Tone control, 4 Input Selector, Bass Boost, REC output and Mic Mixing. This IC is suitable for Mini Component.
A difference in M61529FP and M61519FP has just changed Tone Input ATT from 0/–13dB to 0/–8.2dB.
Features
2ch Master Volume (L,R Independent Control)
Main Volume : 0dB to –76dB (2dB or 4dB step), –
Trim Volume : 0dB to –15dB (1dB step)
*Total level is fixed at –87dB, on condition that the total level of Trim and Master volume is under “–87dB”.
Tone Control (Bass/Mid/Treble)
±8dB (2dB step)
4 Input Selector with Mute
Surround Function
Vocal Cut Function
Bass Boost Function
L+R Output for Spectrum Analysis Display
L+R Output for Subwoofer
MIC Mixing Function
2 REC output with mute
Input ATT
: –5/0/+3.5dB
Tone Input ATT
: 0/–8.2dB
External Input ATT : +3/0/–3/–6dB
Application
Mini/Micro Component, Radio-Cassette Recorder with CD Player, etc.
Recommended Operating Conditions
Supply voltage range……………………8.0 to 10.0V
Recommended supply voltage……………...…...9.0V
Rev.1.00, Sep.04.2003, page 1 of 23

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M61529FP
System Block Diagram
MIC
INA1
INB1
INC1
IND1
INA2
INB2
INC2
IND2
SUR1/DPL1
SUR2/DPL2
RECA1/INex1
External Input ATT
RECB1
4Input selector +Mute
Input ATT
4Input selector +Mute
Vocal cut
ON/OFF
Input ATT
Bypass
-1
Surround
-1
Bypass
External Input ATT
Bypass
Tone ATT
Tone control (Bass/Mid/Treble)
Tone control (Bass/Mid/Treble)
Tone ATT
Bypass
RECA2/INex2 RECB2
Volume
BASS BOOST
OUT1
Volume
BASS BOOST
OUT2
MCU I/F
DATA CLOCK
SWOUT
SAOUT
Rev.1.00, Sep.04.2003, page 2 of 23

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M61529FP
Pin Configuration and Block Diagram
REF 1
MIC 2
INA1 3
REF
V1 V2
S1
S2
-5/0/+3.5dB
-5/0/+3.5dB
42 SUR1/DPL1
41 SUR2/DPL2
40 INA2
INB1 4
INC1 5
IND1 6
RECA1/INex1 7
AB
BA
-6/-3/0/+3dB
S 1S 2
-6/-3/0/+3dB
39 INB2
38 INC2
37 IND2
36 RECA2/INex2
RECB1 8
TMI1 9
TMO1 10
B
SW A
Surround or
Mid
Dolby Pro Logic Buffer
B
A SW3
Mid
35 RECB2
34 TMI2
33 TMO2
TCA1 11
TCB1 12 Bass&
Treble
TCC1 13
A
TOUT 14 SW4 B
VOLIN1 15
V1
BB_A1 16
BB_B1 17
OUT1 18
A
BSW5
A
CB
A
BC
V2
VOL(0 to -87dB ,-)
VOL(0 to -87dB,-)
32 TCA2
Bass&
Treble
31 TCB2
30 TCC2
A
29 TOUT2
B SW4
28 VOLIN2
A 27 BB_A2
SW5 B
26 BB_B2
25 OUT2
SAOUT 19
24 SWOUT
VCC 20
23 GND
DATA 21
22 CLOCK
Note : Dolby
Rev.1.00, Sep.04.2003, page 3 of 23

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M61529FP
Pin Descliption
Pin No.
1
2
3, 4, 5, 6
37, 38, 39, 40
41, 42
7, 8, 35, 36
Symbol
REF
MIC
INA to IND
SUR/DPL
RECA/INex, RECB
9, 10, 33, 34
11, 12, 13,
30, 31, 32
14, 29
15, 28
16, 17, 26, 27
18, 25
19
24
20
23
21, 22
TMI, TMO
TCA, TCB, TCC
TOUT
VOLIN
BB_A, BB_B
OUT
SAOUT
SWOUT
VCC
GND
DATA, CLOCK
Function
Input pin of internal reference (REF=4.5V)
Input pin of MIC Mixing
Input Selector
External pins for surround,Switching use with DPL Input pin
Output pins for REC, RECA can switch mute function and external
Input pins (At external input, RECA Switch is fixed mute position.)
External pins for Mid (sympathetic vibration type )
External pins for Bass/Treble (Shelving type)
Output pins of tone control
Input pins of electronic volume
External pins for Bass boost
Output pins
Mix pins for spectrum Analyzer (L+R/2)
Mix pin for super woofer
Internal analog, power pin for digital circuit
Internal analog, GND pin for digital circuit
DATA for serial data, Clock input pin
Absolute Maximum Ratings
Symbol
V
CC
Pd
K
Topr
Tstg
Parameter
Supply voltage
Power dissipation
Thermal derating
Operating temperature
Storage temperature
Conditions
Ta 25°C
Ta > 25°C
Limits
10.5
850
8.6
20 to +75
40 to +125
Units
V
mW
mW/ °C
°C
°C
Rev.1.00, Sep.04.2003, page 4 of 23

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M61529FP
Thermal Derating
1.0
0.85W
0.75
0.5
0.42
0.25
0
0 25 50 75 100 125 150
Ambient Temperature Ta [˚C]
Recommended Opreting Confition
(Ta = 25ºC, unless otherwise noted.)
Parameter
Symbol
Supply Voltage
Logic Hlevel Input voltage
Logic Llevel Input voltage
V
CC
V
IH
VIL
Condition
Min Typ Max Unit
8 9 10 V
V = 9V
CC
VCC = 9V
2.2 5.5 V
0 0.6 V
Rev.1.00, Sep.04.2003, page 5 of 23