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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