6ch Electronic Volume
Description
R2S15902FP
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DataSheet4U.
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6ch Electronic Volume with 4 Input Selector
REJ03F0152-0100 Rev.
1.
0 Nov.
22.
2005
Description
R2S15902FP is an audio signal processor for home audio.
This IC contains 6 channels electronic volume, gain control, input selector and 2 band tone control.
Features
• • • • • • • • • 6 channels independent electronic volume (0 to –99dB/1dBstep, –∞dB) 6 channels independent gain control (0 to +14dB/ 2dB step) L/R channel 4 input selector (Input gain: 0 to +14dB/ 2dB step) Multi channel input: 6 channels input Tone control Bass: –14 to + 14dB(2dB step), Treble: –14 to + 14dB(2dB step) Can use 1 input for REC output (REC output gain: 0, +2, +4, +6dB) Built-in ADC output (Input Att: 0/ –6/ –12/ –18dB) Built-in L+R/ L–R block Built-in digital power supply
Recommended Operating Condition
Supply voltage range VCC = 8.
0V to 10.
0V: 9.
0V(typ)
Application
Receiver, AV amp, Home theater, Mini stereo etc.
System Block Diagram
REC OUT (4) Multi Multi Rin Lin Lch Tone Rch Tone DGND CLOCK DATA MCU I/F
Input Selector
Tone Input Gain Volume Bass& Treble REC Gain Input Gain Volume Bass& Treble Gain Control Rout Gain Control Lout
1 Lch 2 3
LoSL Input ATT
+ -
Lch (L-R)
SLin MSLin SRin MSRin Cin MCin SWin MSWin
Volume
Gain Control SLout
ADCL (L-R)
Volume
Gain Control SRout
1 Rch 2 3
Input Selector
REC Gain Input ATT
LoSR
+ -
Rch (L+R)
Volume
Gain Control
Cout
ADCR (L+R)
Volume
Gain Control
SWout
(4) REC OUT
AGND
Vref VCC
Rev.
1.
0 Nov 22, 2005 page 1 of 15
R2S15902FP
Block Diagram and Pin Configuration
SWOUT SROUT DGND
12 11 SRIN
50k
ROUT
COUT
LOUT
22 BASL2 BASL1 23 24
21
20
Gain Control
19
Gain Control
18
Gain Control
17
Gain Control
16
Gain Control
15
Gain Control
14
C
13
D
+ -
+ -
Cch Vol 50 k
+ -
SWch Vol 50 k
SLch Vol 50k
+ -
MCU I/F
SRch Vol 50k
Logic
50 k
DATA
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CLOCK
SLOUT
BASR1
BASR2
+ -
+ -
10 SLIN
TRER 25 TREL VOLINL GAINOUTL VOLINR GAINOUTR INL1 INR1 INL2 26 27
Input Ga...
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