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M61530FP
4ch Electronic Volume with 5.1ch Analog Input
REJ03F0058-0100Z Rev.1.0 Sep.19.2003
Description
The M61530FP is a four-channel volume IC which is optimal for combination with the M61519FP two-channel electronic volume. A multi-channel system is easily configured with the aid of these two chips.
Features
Function names Main volume control Low pass filter (LPF) AGC Bass boost Output gain control Input gain control Microcomputer I/F Features 0 to −87 dB in 1-dB steps, −∞ Four independently controlled volumes (SL, SR, C, LFE) On-chip operational amplifiers for configuration of post-filters through the addition of external C and R elements AGC circuit is included to prevent clipping HPF type, with on/off switch 0, +6, +9, or +12 dB (four steps) 0, +5, +10 dB (three steps) Two-line serial data control
Application
Mini-component systems, micro-component systems, etc.
Recommended Operating Conditions
Power-supply voltage range: Vcc = 8 to 10 V Rated power-supply voltage: Vcc = 9 V
Rev.1.0, Sep.19.2003, page 1 of 18
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System Block Diagram
M 61530FP
LI N RIN FLIN FRIN SLIN
SL_EXTIN
M61519FP
Input selector
L-LPF R-LPF
0,+5,+10dB
Input selector
Surround or DPL buffer
Tone
VOL
Bass booster
LOUT ROUT
Tone
VOL
Bass booster
FL-LPF
0,+5,+10dB
FR-LPF SL-LPF SR-LPF
+6dB SLchVOL +6dB
Bass booster
SLOUT
SRchVOL
Bass booster
SRIN
SR_EXTIN
SROUT C-LPF
+6dB CchVOL
CIN LFEIN
SWIN
COUT
LFEchVOL
AGC
SW-LPF
0,+6, +9,+12dB
SWOUT
Rev.1.0, Sep.19.2003, page 2 of 18
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Block diagram with pin connections
FR_LPFOUT FR_LPFIN SL_EXTIN SL_VOLIN SL_LPFOUT SL_LPFIN SR_EXTIN SR_VOLIN SR_LPFOUT
1 2 3
FRch LPF amp FR input gain control 0,+5,+10dB
FL input gain control 0,+5,+10dB FLch LPF amp
42 FL_LPFOUT 41 FL_LPFIN 40 R_LPFIN
SLVOLXY input SW
SL ch volume Rch LPF amp
4 5 6
+6dB
0 to -87dB,-∞
39 R_LPFOUT 38 L_LPFOUT 37 L_LPFIN
SLch LPF amp
Lch LPF amp
7
SRVOL input SW SRch volume
VREF amp
36 REFIN 35 REFOUT 34 FL_OUT
8 9
0 to -87dB,-∞
SRch LPF amp
FL output SW
SR_LPFIN 10
+6dB
33 FR_IN
Cch volume 0 to -87dB ,-∞
OFF FR output SW ON
C_VOLIN 11 C_LPFOUT 12 C_LPFIN 13
+6dB
32 FR_OUT 31 SL_BB1
Cch LPF amp
Bass booster ON/OFF
30 SL_BB2 29 SL_OUT
LFEch volume 0 to -87dB,-∞ Bass booster
LFE_VOLIN 14 SW_IN 15 VCC 16
28 SR_BB1
Bass booster ON/OFF
27 SR_BB2 26 SR_OUT
DATA
17
Microcomputer I/F
SW MIX SW
LFEMIX SW
Bass booster
CLOCK 18 GND 19 TEST 20 AGC 21
25 C_OUT
AGC
SW output-gain control 0,+6,+9,+12dB
24 SW_OUT 23 SW_LPFIN 22 SW_LPFOUT
SWch LPF amp
Rev.1.0, Sep.19.2003, page 3 of 18
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Pin description
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 Pin Name FR_LPFOUT FR_LPFIN SL_EXTIN SL_VOLIN SL_LPFOUT SL_LPFIN SR_EXTIN SR_VOLIN SR_LPFOUT SR_LPFIN C_VOLIN C_LPFOUT C_LPFIN LFE_VOLIN SW_IN VCC DATA CLOCK GND TEST AGC SW_LPFOUT SW_LPFIN SW_OUT C_OUT SR_OUT SR_BB2 SR_BB1 SL_OUT SL_BB2 SL_BB1 FR_OUT FR_IN FL_OUT REFOUT REFIN L_LPFI N L_LPFOUT R_LPFOUT R_LPFIN FL_LPFIN FL_LPFOUT Description Configure a low-pass filter by adding external C and R elements to the input of the FR channel SL channel external input pin SL channel volume input pin Configure a low-pass filter by adding external C and R elements to the input of the SL channel SR channel external input pin SR channel volume input pin Configure a low-pass filter by adding external C and R elements to the input of SR channel C channel volume input pin Configure a low-pass filter by adding external C and R elements to the input of the C channel LFE channel volume input pin SW channel input pin Power-supply pin for internal analog and digital circuitry (VCC = 9 V) DATA input pin for serial data transfer CLOCK input pin for serial data transfer GND pin for internal analog and digital circuitry Pin for setting the test mode (normally fixed low) C connection pin for setting attack/recovery time for AGC Configure a low-pass filter by adding external C and R elements to the input of the SW channel SW channel output pin C channel output pin SR channel output pin Pin for connecting external components that set bass-boost frequency characteristics for the SR channel SL channel output pin Pin for connecting external components that set bass-boost frequency characteristics for the SL channel FR channel output pin Pin for interfacing with the M61519FP surround circuit FL channel output pin Internal reference output pin Internal reference input pin Configure a low-pass filter by adding external C and R elements to the input of the L channel Configure a low-pass filter by adding external C and R elements to the input of the R channel Configure a low-pass filter by adding external C and R elements to the input the of FL channel
Rev.1.0, Sep.19.2003, page 4 of 18
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Absolute Maximum Ratings
Parameter Powe.