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MITSUBISHI SOUND PROCESSORS
M61512FP
5.1ch Electronic Volume
6ch Electric Volume with 6 Input Selector
APPLICATION
AV amp, Mini Compo etc.
FEATURE
* 6 Input Selector (6ch+MUTE) * Input Gain Control (0/3/6/9dB) * INPUT ATT (0/-5dB) * 6ch Dependent Electronic Volume (6ch 0~-87dB,-) FL,FR,C,SL,SR,SWch * 2 Lines REC Output (for one thing built in mute switch) * Built in Bass Boost circuit (FL,FRch) * 9V single power source
OUTLINE 80P6N
0.8mm pitch QFP (20.0X14.0X2.8mm)
RECOMMENDED OPERATING CONDITION
Analog Supply Voltage Range AVcc=8.0V~10.0V Digital Supply Voltage Range DVdd=3.0V~5.5V
SYSTEM BLOCK DIAGRAM
0/3/6/9dB GAIN 0/-6dB-6/0/2dB + + ATT ref 0/-6dB ++ ATT -6/0/2dB ref BASS VR Buf BOOST FL BASS Buf BOOST FR
+
ATT 0/-5dB REC OUT MIC IN REC OUT 0/3/6/9dB GAIN ATT 0/-5dB MCU I/F -+ + -
-1
-
ADC
DSP
DAC
ref
SL GAIN 0/6dB SR GAIN 0/6dB C GAIN 0/6dB GAIN 0/6dB SW
-1
+
ref
ref
ref PORT PORT PORT PORT PORT PORT LATCH DATA CLOCK 123456
MITSUBISHI ELECTRIC
(1 /13)
MITSUBISHI SOUND PROCESSORS
M61512FP
5.1ch Electronic Volume
BLOCK DIAGRAM AND PIN ASSIN
AVCC 73 RIN6 79 RIN5 78 RIN4 77 RIN3 76 RIN2 75 RIN1 74 LIN6 71 LIN5 70 LIN4 69 LIN3 68 LIN2 67 LIN1 66 NC 80 NC 72 NC 65
60k 60k 60k 60k 60k 60k MICIN LRECIN RRECIN ADR+OUT ADR-OUT ADL+OUT ADL-OUT FRIN FLIN SRIN SLIN CIN SWIN DGND DATA CLOCK LATCH PORT1 PORT2 PORT3 PORT4 PORT5 PORT6 DVDD
1 2 3 4 -1 5 6 -1 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 SWREF 26 SWBUF 27 SWVOLIN
INPUT SELECTOR
+ +
60k 60k 60k 60k 60k 60k
64
INPUT SELECTOR
LRECOUT1 LRECOUT2 RRECOUT1 RRECOUT2 REFOUTEX2 REFOUTEX1 REFIN REFOUT IVSS IVDD AGND FROUT FRBB2 FRBB1 FRVOLIN FRBUF FRREF BBREFOUT FLOUT FLBB2 FLBB1 FLVOLIN FLBUF FLREF
63
(Input Gain)
ATT
62
0/3/6/9dB (Input ATT) 0/-5dB
+ +
(Input Gain)
0/3/6/9dB
61
(Input ATT) ATT 0/-5dB
REF
60
-6/0/2dB
59 58
-6/0dB
57 ATT
(FL,FRATT)
ATT
+ -
-6/0/2dB
56 55
SR 60k 60k 60k 60k SL C (C,SL,SR,SWGain) SW FR
Bass Boost
54 53 52 51 50
MCU I/F
Bass Boost
49 48 47 46
FL
45 44
SW 0/6dB
C 0/6dB
SL 0/6dB
SR
43 42
0/6dB
36 SLOUT 9 35 SLVOLIN
41
28 SWOUT
29 CREF
30 CBUF
31 CVOLIN
32 COUT
MITSUBISHI ELECTRIC
33 SLREF
34 SLBUF
37 SRREF
38 SRBUF
39 SRVOLIN
40 SROUT
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MITSUBISHI SOUND PROCESSORS
M61512FP
5.1ch Electronic Volume
ELECTRIC CHARACTERISTICS
(Unless otherwise noted, Ta=25C,Vcc=9.0V,Vdd=5.0V,f=1KHz,BassBoost:off)
(1)ABSOLUTE MAXIMUM RATINGS
Symbol Vcc VDD Pd Topr Tstg Parameter Supply voltage Power dissipation Operating temperature Storage temperature
2.0
Condition
Limits 10.5 6.5 1.4 -20 to +75 -40 to +125
Unit V V W C C
Power Dissipation Pd (W)
1.5 1.4 1.0 0.7 0.5
0 0 25 50 75 100 125 150
Ambient Temperature Ta ( C )
(2)RECOMMENDED OPERATING CONDITION
Symbol Vcc VDD VIL VIH Item Supply voltage Logic"L"Level Input Voltage Logic"H"Level Input Voltage Pin15,16,17 Pin15,16,17 Condition Min 8.0 3.0 0.0 2.0 Range typ 9.0 5.0 - - Max 10.0 5.5 0.8 VDD Unit V V V V
(3)ELECTRIC CHARACTERISTICS
Symbol Analog supply current Digital supply current Item AICC Dldd Condition Vcc=9.0V Measurement terminal=pin73 No input signal Vcc=5.0V Measurement terminal=pin23 No input signal Min - - Range typ 25 0.8 Max 40 1.5 Unit mA mA
MITSUBISHI ELECTRIC
(3 /13)
MITSUBISHI SOUND PROCESSORS
M61512FP
5.1ch Electronic Volume
(Unless otherwise noted, Ta=25C,Vcc=9.0V,Vdd=5.0V,f=1KHz,BassBoost:off)
(4)I/O CHARACTERISTICS
Symbol Input resistance Maximum input voltage FL,FROUT maximum Output Voltage RECOUT maximum Output Voltage
C,SL,SR,SWVOLOUT maximum output voltage
Item Rin Vin Vom Vomrec Vomvol Vodc Vrecdc Vvoldc Gv ATT Vadno Vrecno Vono1 Vvolno1 Vono2 Vvolno2 THD THDrec THDvol CT
Condition 66pin,74pin 66pin,74pin
Pin8,9 input,pin46,53 output Gain=2dB RL=10K,THD=1% Pin2,3 input,pin62,64 output RL=10K,THD=1% Pin10,11 input pin46,53 output Gain=6dB RL=10K,THD=1%
Min 30 - - - - 4.0 4.0 4.0 - -87 - - - - - - - - - - -
Range typ 60 2.2 #1.4 2.2 2.2 4.5 4.5 4.5 -4.0 -92 4.0 6.0 7.0 6.0 5.0 4.0 0.01 0.01 0.01 -70 -70
Max 90 2.4 #1.5 2.4 2.4 5.0 5.0 5.0 - - 12.0 15.0 15.0 12.0 10.0 8.0 0.05 0.05 0.05 -55 -55
Unit K Vrms Vrms Vrms Vrms V V V dB dB Vrms Vrms Vrms Vrms Vrms Vrms % % % dB dB
FL,FROUToffset voltage RECOUT offset voltage
C,SL,SR,SWVOLOUT
offset voltage Through gain Maximum attenuate value ADOUT Output noise voltage RECOUT Output noise voltage FL,FROUT Output noise voltage
C,SL,SR,SWVOLOUT
46pin,53pin no input signal 62pin,64pin no input signal 40pin,36pin no input signal Vin=1Vrms,FLAT ATT=-6dB,Gain=2dB Gain of(66,74pin)-(46,53pin) Vo=1Vrms,40,36pin JIS-A
JIS-A,no input signal Rg=10K 5,7pin,ATT=0dB,Gain=0dB JIS-A,no input signal Rg=10K,61,63pin JIS-A 62,64pin No input signal Rg=10K ATT=0dB,Gain=0d 40,36pin B,Vol=0dB JIS-A 46,53pin No input signal Rg=10K ATT=0dB,Gain=0d 40,36pin B,Vol=-dB
Output noise voltage FL,FROUT Output noise voltage
C,SL,SR,SWVOLOUT
Output noise voltage
FL,FROUT Total harmonic distortion RECOUT Total harmonic distortion C,SL,SR,SWVOLOUT Total harmonic distortion
Channel crosstalk CTrec
46pin,53pin BW=400~30KHz Vo=300mVrms,RL=10K 62pin,64pin BW=400~30KHz Vo=300mVrms,RL=30K 40pin,36pin BW=400~30KHz Vo=300mVrms,RL=51K Vo=0.5Vrms,RL=10K JIS-A 46pin-53pin,Rg=10K Vo=0.5Vrms,RL=30K JIS-A 62pin-64pin,Rg=10K
#When bass boost "ON" , Output level is as high as other output level at Bass Boost resonance frequency.
MITSUBISHI ELECTRIC
(4 /13)
MITSUBISHI SOUND PROCESSORS
M61512FP
5.1ch Electronic Volume
DATA INPUT FORMAT
DATA SCK REQ
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9 D10 D11 D12 D13 D14 D15
(Please set all data of nine input formats when every power supply is applied.)
D0 A B C D E F G H 0 0 1 1 1 1 1 1
D1 0 0 0 0 0 0 1 1
D2 0 0 0 0 1 1 0 0
D3 0 1 0 1 0 1 0 1
D4
D5
D6
D7
D8
D9 (3)
InputATT
D10 (4)
FL,FR,ATT
D11
D12
(1) Input Selector (16) (7) (8)
ALL MUTE MIC MUTE REC2 MUTE
(2) Input Gain (9) (10)
Bass Boost
PORT1 CONT
(11)
PORT2 CONT
(12)
PORT3 CONT
(5) FL,FRGain (13) (14)
PORT4 CONT PORT5 CONT
D13 (6)
SL,SR,C , SWGain
D14
D15
(15)
PORT6 CONT
(17) Lch Volume (17) Rch Volume (17) Cch Volume (17) SLch Volume (17) SRch Volume (17) SWch Volume Chip Adress 1 1
* Input selector:MUTE * OUTPUTPORT1:PORT1OFF * Input Gain:0dB * OUTPUTPORT2:PORT2OFF * Input ATT:0dB * OUTPUTPORT3:PORT3OFF * FL,FR ATT:-6dB * OUTPUTPORT4:PORT4OFF * FL,FR Gain:2dB * OUTPUTPORT5:PORT5OFF * SL,SR,C,SW Gain:0dB * OUTPUTPORT6:PORT6OFF * MIC MUTE:MUTE * ALL MUTE:NO MUTE * REC2 MUTE:THRU * Bass Boost:NO BOOST
#No guarantee except for these code.
* LchVOL:-dB * RchVOL:-dB * CchVOL:-dB * SLchVOL:-dB * SRchVOL:-dB * SWchVOL:-dB
MITSUBISHI ELECTRIC
(5 /13)
MITSUBISHI SOUND PROCESSORS
M61512FP
5.1ch Electronic Volume
(1)Input selector setting code
INPUT SEL. 1 2 3 4 5 6 MUTE D4A 0 0 0 0 1 1 1 D5A 0 0 1 1 0 0 1 D6A 0 1 0 1 0 1 1
(8)REC2 MUTE setting code
REC2 THRU MUTE D6B 0 1
(9)Bass Boost setting code
Bass Boost No Boost Boost ON D7B 0 1
(2)Input gain setting code
INPUT Gain 0dB 3dB 6dB 9dB D7A 0 0 1 1 D8A 0 1 0 1
(10)OUTPUTPORT1 setting code
PORT1 PORT1OFF PORT1ON D8B 0 1
(11)OUTPUTPORT2 setting code
PORT2 PORT2OFF PORT2ON D9B 0 1
(3)Input ATT setting code(#)
INPUT ATT 0dB -5dB D9A 0 1
(#)There is a restriction combination of input ATT and input gain.(refer to below table)
INPUT ATT 0dB -5dB Input Gain possible to set 0/3/6/9dB 0/6dB
(12)OUTPUTPORT3 setting code
PORT3 PORT3OFF PORT3ON D10B 0 1
(13)OUTPUTPORT4 setting code
PORT4 PORT4OFF PORT4ON D11B 0 1
(4)FL,FR ATT setting code
FL,FR ATT 0dB -6dB D10A 0 1
(14)OUTPUTPORT5 setting code
D12A 0 1 0 PORT5 PORT5OFF PORT5ON D12B 0 1
(5)FL,FR Gain setting code
Gain AMP -6dB 0dB 2dB D11A 0 0 1
(15)OUTPUTPORT6 setting code
PORT6 PORT6OFF PORT6ON D13B 0 1
(6)SL,SR,C,SW Gain setting code
Gain AMP 0dB 6dB D13A 0 1
(16)ALL MUTE setting code
DPL NO MUTE ALL MUTE D4B 0 1
(7)Microphone mute setting code
MIC THRU MUTE D5B 0 1
ALL MUTE setting: Volume=- Input SELECTOR=MUTE
MITSUBISHI ELECTRIC
(6 /13)
MITSUBISHI SOUND PROCESSORS
M61512FP
5.1ch Electronic Volume
(17)Volume setting code (FLch,FRch,Cch,SLch,SRch,SWch)
ATT 0dB -1.0dB -2.0dB -3.0dB -4.0dB -5.0dB -6.0dB -7.0dB -8.0dB -9.0dB -10.0dB -11.0dB -12.0dB -13.0dB -14.0dB -15.0dB -16.0dB -17.0dB -18.0dB -19.0dB -20.0dB -21.0dB -22.0dB -23.0dB -24.0dB -25.0dB -26.0dB -27.0dB -28.0dB -29.0dB -30.0dB -31.0dB -32.0dB -33.0dB -34.0dB -35.0dB -36.0dB -37.0dB -38.0dB -39.0dB -40.0dB -41.0dB -42.0dB -43.0dB -44.0dB
D7C~H D8C~H D9C~H D10C~ H D11C~ H D12C~ H D13C~ H
0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0
0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0
0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1
0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
ATT -45.0dB -46.0dB -47.0dB -48.0dB -49.0dB -50.0dB -51.0dB -52.0dB -53.0dB -54.0dB -55.0dB -56.0dB -57.0dB -58.0dB -59.0dB -60.0dB -61.0dB -62.0dB -63.0dB -64.0dB -65.0dB -66.0dB -67.0dB -68.0dB -69.0dB -70.0dB -71.0dB -72.0dB -73.0dB -74.0dB -75.0dB -76.0dB -77.0dB -78.0dB -79.0dB -80.0dB -81.0dB -82.0dB -83.0dB -84.0dB -85.0dB -86.0dB -87.0dB -dB
D7C~H
D8C~H
D9C~H
D10C~ H
D11C~ H
D12C~ H
D13C~ H
1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 1
0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 1
1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 1
1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 1
0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
#No guarantee except for these code.
MITSUBISHI ELECTRIC
(7 /13)
MITSUBISHI SOUND PROCESSORS
M61512FP
5.1ch Electronic Volume
CLOCK,DATA,LATCH TIMING
t1,t2
VDD=5V 2.2V
DAT
0.8V
t6 t1 t4
t7 t2
2.2V
SCK
0.8V
t5 t3 t8 t9
t10
2.2V
REQ
0.8V
t1
t2
Symbol t1 t2 t3 t4 t5 t6 t7 t8 t9 t10
ITEM Rise time of signal Fall time of signal SCK width of CLOCK SCK Pulse width of "H" SCK Pulse width of "L" Set up time of DATA Hold time of DATA Set up time of REQ Pulse width of REQ "H" Set up time of SCK
Min 1 0.4 0.4 0.4 0.4 0.8 0.4 0.4
Typ -
Max 0.3 0.3 -
Unit S S S S S S S S S S
MITSUBISHI ELECTRIC
(8 /13)
MITSUBISHI SOUND PROCESSORS
M61512FP
5.1ch Electronic Volume
FUNCTION DESCRIPTION
(1)INPUT SELECTOR,INPUT GAIN,INPUT ATT
This IC is build in selector with 2ch 6input+mute. The Input selector is able to control source signal level at 0dB or -5dB by Input ATT Switch. And , for low level source signal it is able to change the gain by Input Gain Switch. But There is a restriction on combination of ATT level and Gain.(Refer to below table)
INPUT ATT setting INPUT Gain possible to set 0dB
60k 1 2 3 4 5 6 60k 60k 60k 60k 60k
0dB/3dB/6dB/9dB 0dB/6dB
-5dB
INPUT ATT SW (0dB/-5dB)
+ + -
Positive output of selector
INPUT Gain SW (0/3/6/9dB)
+
Negative output of selector
(2)REC Block
REC signal output after mixing to microphone signal. The signal level mixed on is 0dB. And REC OUT2 build in REC MUTE Switch.
From MIC REC OUT1 REC INPUT
+
REC OUT2 MUTE SW
MITSUBISHI ELECTRIC
(9 /13)
MITSUBISHI SOUND PROCESSORS
M61512FP
5.1ch Electronic Volume
(3)Microphone mixing
The microphone signal is mixed on L-ch or R-ch after pass through the buffer for decrease in crosstalk between L-ch and R-ch. The signal level mixed on is 0dB. And , This IC build in microphone mute switch for the purpose of improving noise characteristics.
to REC OUT
MIC IN MUTE SW
+ -
+
Lch/Rch OUT
-6/0/2dB Main Signal FL,FR
ATT
0/-6dB
(4)Master Volume (FLch,FRch,Cch,SLch,SRch,SWch)
This IC build in 6ch independent electric volume with low distortion and low noise. The volume is able to set steps by 1dB from 0dB to -87dB.
VOL IN
FLch FRch
+ to BASS BOOST
Volume:0dB~-87dB:1dB Step , -
VOL IN
+
SLch SRch Cch SWch
-
VOL OUT
0/6dB
Volume:0dB~-87dB:1dB Step , -
MITSUBISHI ELECTRIC
( / 13 10 )
MITSUBISHI SOUND PROCESSORS
M61512FP
5.1ch Electronic Volume
(5)Equivalent circuit of Bass Boost
INPUT
SEL
+ -
OUTPUT 200
Go
Q=4(G=10dB)
0dB
The circuit for decrease in switching noise
fo
RL=70K OVER(Notice) The circuit figure of positive feedback two order high pass filter circuit on bass boost part. R1 The amplitude characteristics of two order high pass filter circuit (Reference) Q G0
VOUT
VIN
C1
C2
+K
R2
1 2 4 5 10
0~1dB 6dB 10dB 13dB 20dB
The transmission function is VOUT VIN Ks2 s2 + s 1 R2C1 + 1 R2C2 +(1-K) 1 R1C1 + 1 R1R2C1C2 o2 Q= R1C1 R2C2 The bass boost part is consist of two order high pass filter circuit. We show an example how to calculate design value of bass boost part. We let is 2x70Hz and Q is 10 in the case of the cutoff frequency is 70Hz and Q is 10. We let C1=C2=Cf are 0.1F. From equation(1),(2),(3) Rf=23.5K R1=1.18K R2=470K R1 become about 1.2K,and R2 become about 470 + 1
=
R1R2C1C2 1 R1C2 R2C1 +(1-K) R2C2 R1C1
=
We let C1=C2 are Cf and K is +1. Above equation is shown below. Rf=1/(0Cf) * * * (1) R1=Rf/2Q * * * (2) R2=2QRf * * * (3)
(Notice)Please set the load resistance on "fl-out(pin46)" or "fr-out(pin53)" at RL=70K over.
MITSUBISHI ELECTRIC
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MITSUBISHI SOUND PROCESSORS
M61512FP
5.1ch Electronic Volume
TOTAL GAIN
Gain level diagram

0/3/6/9dB SELECTOR INPUT 0/-5dB ATT -1 AD OUT Input dynamic range 2.4Vrms(9V Vcc) Output dynamic range 2.4Vrms(9V Vcc)
Total Gain (dB) 9 6 3 1 0 -5
INPUT Gain(dB)
ATT (dB) 0 -5 0 -5
9 6 3 6 0 0

MIC INPUT MIC MIXING(0dB) REC INPUT Input dynamic range 2.4Vrms(9V Vcc) + REC OUT Output dynamic range 2.4Vrms(9V Vcc)
TOTAL GAIN 0dB(Mixed)

MIC MIXING(0dB) 0/-6dB FL,FR IN ATT Input dynamic range 5Vp-p + FL,FR BUF OUT Output dynamic range 5Vp-p
TOTAL GAIN
Total Gain (dB) 2 0 -4 -6 -12 ATT (dB) 0 0 -6 0 -6 -6 Gain (dB) 2 0 2 -6 0 -6

C~SW IN C~SW BUF OUT Input dynamic range 5Vp-p Output dynamic range 5Vp-p
TOTAL GAIN 0dB

BB FL,FR BUF IN Input dynamic range 5Vp-p FL,FR OUT Output dynamic range 5Vp-p
TOTAL GAIN 0dB(BBoff)

C~SW OUT C~SW BUF IN Input dynamic range 5Vp-p Output dynamic range 5Vp-p
TOTAL GAIN 0dB or 6dB
MITSUBISHI ELECTRIC
( / 13 12 )
MITSUBISHI SOUND PROCESSORS
M61512FP
5.1ch Electronic Volume
APPLICATION EXAMPLE
AnalogVCC 72 +9.0V RIN6
80 79
60k 60k 60k 60k 60k 60k MICIN LRECIN RRECIN ADR+OUT ADR-OUT ADL+OUT ADL-OUT FRIN FLIN SRIN SLIN CIN SWIN Digital GND
1 2 3 4 -1 5 6 -1 7 8 9 10 11 12 13 14 15 16 17 18
INPUT SELECTOR
+ +
(Input Gain)
ATT
-6/0dB
57 ATT
(FL,FRATT)
ATT
RIN5
78
RIN4
77
RIN3
76
0/3/6/9dB (Input ATT) 0/-5dB
+ +
RIN2
75
RIN1
74
+ -
LIN6
LIN5
LIN4
LIN3
LIN2
LIN1
-6/0/2dB
-6/0/2dB
SR 60k 60k 60k 60k SL C (C,SL,SR,SWGain) SW FR
Bass Boost
73
INPUT SELECTOR
(Input ATT) ATT 0/-5dB
71
60k 60k 60k 60k 60k 60k LRECOUT1 LRECOUT2 RRECOUT1 RRECOUT2 REFOUTEX2 +
0.01 47
(Input Gain)
70
69
68
0/3/6/9dB
67
66
REF
65 64 63 62 61 60 59
47
+
220 0.01
REFOUTEX1 +
0.01
58 56 55 54 53 52 51 50
47 100
+
REFOUT
0.01
+ +
100
Analog GND
Rch OUT
0.1 10
0.1
470k
MCU
MCU I/F
Bass Boost
+
49 48 47
FRVOLREF BBREFOUT
PORT1 PORT2 PORT3 PORT4 PORT5 PORT6
Lch OUT
19
46
FL
20 21 22 23 24
45 44
0.1
470k
SW 0/6dB
C 0/6dB
SL 0/6dB
SR
43
0.1 10
+ FLVOLREF
42
0/6dB
36 9 35 25 26 27 28 29 30 31 32 33 34 37 38 39 40
41
Digital VDD SWVOL REF SWOUT
SLOUT
SROUT
COUT
SRVOL REF
+
10
+
10
+
10
+
10
SLVOL REF
CVOL REF
MITSUBISHI ELECTRIC
( / 13 13 )

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