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MITSUBISHI SOUND PROCESSORS
M62461FP
"Super Single Chip " Surround Processor with Dolby Pro Logic Decoder
DESCRIPTION
M62461FP is"SUPER SINGLE CHIP"SURROUND LSI for Dolby Pro Logic Surround System which includes all of required functions using analog/digital mixed signal technology. This LSI can also generate "DIGITAL SPACE SURROUND" such as Disco,Hall, Live and"ECHO"for KARAOKE.
(Note) Dolby and the double-D symbol are trademarks of Dolby Laboratories
Licensing Corporation.San Francisco,CA94103-4813,USA. This device available only to licensees of Dolby Lab. Licensing and application information may be obtained from Dolby Lab.
Outline
Outline 80P6N 0.8mm pitch QFP (20.0mmx4.0mmx2.8mm)
FEATURES
Includes completed functions for Dolby Pro Logic Surround System *Automatic Input Balance *Noise Sequencer *Adaptive Active Matrix *Center Mode Control *Modified B Type Noise Reduction *Digital Time Delay DIGITAL SPACE SURROUND system:Disco,Hall,Live mode etc. Echo effect for KARAOKE (Delay time:200ms) IIC Bus Control
RECOMMENDED OPERATING CONDITIONS
Supply voltage range Vcc=8~10V,Vdd=4.5~5.5V
SYSTEM CONFIGURATION
SUPER ONE CHIP SURROUND PROCESSOR
Lin Rin MIC SDA SCL IIC Bus
ANALOG PROCESSOR
DOLBY PRO LOGIC DECODER
Lout Rout Cout Sout Dout
DIGITAL TIME DELAY
16Kbit RAM
MCU I/F
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MITSUBISHI SOUND PROCESSORS
M62461FP
"Super Single Chip " Surround Processor with Dolby Pro Logic Decoder
PIN CONFIGURATION
VREFA VREFG HOLDC NGC2
80
NGC3
79
RBPF
LBPF
RLC6 65
AVcc 75
IREF
78
RIN
LIN
RLI 68
LLI
RT
LT
66
77
74
76
73
72
67
70
71
69
NGC1 LOUT ROUT CT COUT ST SOUT CMC SMRO SMRI AGND MIC IN DVdd TEST CNT SDA SCL (N.C.) LO1 LO2 LO3 XIN XOUT DVss AVss
64
RLC8 RLC3 RLC7 RLC4 RLC1 RLC2 RLC5 PSC4 PSC1 PSC5 PSC2 PSC6 PSC3 DBC3 DBC2 DBC1 LPIN DBIN S' OUT FBIN SU FBIN EC DELAY SIG OUT DELAY SIG IN VOL OUT
(N.C.)AFNO CONNECTION
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 27 33 35 36 37 39 25 26 32 34 38 28 30 40 29 31
63 62 61 60 59 58 57
M62461FP XXXXXX
AVdd VREFD LPF1 IN2 LPF1 OUT AD INT IN AD INT OUT DA INT OUT LPF2 IN1 LPF2 IN2 MIX OUT DELAY IN LPF1 IN1
56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41
MITSUBISHI ELECTRIC ( 2 / 20 )
AD CONT
DA CONT
DA INT IN
LPF2 OUT
C-62461-82B
"Super Single Chip " Surround Processor with Dolby Pro Logic Decoder
MITSUBISHI SOUND PROCESSORS
DELAY SIG OUT
DELAY SIG IN FBIN SU FBIN EC
M62461FP
VOL OUT
64
63 61 57 55 51 60 58 56
62 59 53
54
52
50
49
48
47
46
45
44
43
42
41
VOL
SFB
RLC6 65 LLI
66
BPF NETWORKS
FULL WAVE RECTIFIER DUAL-TIME CONSTANT AND THRESHOLD SWITCHES
LOG DIFFERENCE AMPLIFIERS
SU
EC
LPF
MODIFIED B-TYPE NR DECODER +9.2dB
+
MIX
40
LPF2 OUT
MOS
39
LPF2 IN2
67
L+R L-R VCA
COMBINNING
LBPF RLI 68
BPF
38 S'
+3.2dB
LPF2 IN1
37
DA INT OUT
LT
70
SELECTOR
D/A
RBPF
69
L C R
36
DA INT IN
LOGIC
16kSRAM
RT
71
CENTER MODE
34
SELECTOR2 L RC L+R 2
AD CONT MIC
CONTROL
RIN
73 74
AVcc + SELECTOR1
SERVO
A/D
LIN
72
VCA
33
AD INT OUT
32
L-R 2
AD INT IN
HOLDC
31 -3.2dB ATT
LPF1 OUT
RY . L I M I N Al specificationange.
LPF
BLOCK DIAGRAM
AVcc 75 VREFA
76
VREF VREFA
+
+/SELECTOR3
S'
30
LPF1 IN2
o fi r a PcR;Ehis is nmtita ane subject to ch s ti e T
29
LPF1 IN1
VREFG
77
IREF
28
DELAY IN
IREF
78 79 80
27
CLK SEQUENCER NOISE
MIX OUT
NGC3 NGC2
VREFD
I C bus interface
VOL L R CT C ST VOL S
2
26 + -
VREFD
DVdd AGND TEST CNT
AVdd
25
AVdd
DVss
AVss
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1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
TEST CNT
(N.C.)AFNO CONNECTION
NGC1
SMRO
COUT
LOUT
SDA
ST
SOUT
DVdd
SMRI
SCL
XIN
AGND
ROUT
MIC IN
XOUT
CT
LO1
LO2
(N.C.)
CMC
LO3
DVss
AVss
MITSUBISHI ELECTRIC ( 3 / 20 )
AUTO BALANCE
35 -6.0dB ATT
DA CONT
C-62461-82B
DBC3 DBC2 DBC1 DBIN LPIN S' OUT
PSC4
PSC1
PSC5
PSC2
PSC6
PSC3
RLC8
RLC3
RLC7
RLC4
RLC1
RLC2
RLC5
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MITSUBISHI SOUND PROCESSORS
M62461FP
"Super Single Chip " Surround Processor with Dolby Pro Logic Decoder
Discription of pin
No.
Symbol
Funtion
Voltage
Discription of pin
Equivalent circuit
2
LOUT
Lch output
Direct output R-/Lchannel when the operation mode is 4V BY-PASS.
When the mode is 4channel, they output Dolby Pro logic R-/L- channel signals.
3
ROUT
Rch output
2
3
4
CT
Cch output 4V
No output any signals when the operation mode is center mode is OFF, or set to PHANTOM.
5
COUT
Cch output
COUT is output from C.Trimmer.
This pin outputs surround signals. Output is selected from BNRout, Dout. No output signal when the operation mode is 3 STEREO/MUTE.
4
5
6
ST
Sch output 4V
7
SOUT
Sch output
SOUT is output from S.Trimmer.
6
7
9
SMRO
amplifier output 9 4V This is a amplifier to control mixed level of surround output with external resistance.
10
SMRI
amplifier input
10
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MITSUBISHI SOUND PROCESSORS
M62461FP
"Super Single Chip " Surround Processor with Dolby Pro Logic Decoder
No.
Symbol
Funtion
Voltage
Discription of pin
Equivalent circuit
Microphone input with ECHO MODE 12 MIC IN MIC input 4V
12
14
TEST CNT
TEST control
0
Fixed to GND
14
buffer
15 15 SDA "DATA" input input I2C bus data from MCU. 16
buffer
ACK
16
SCL
"CLOCK" input
buffer
17 18
N.C. LO1
no connection 18 Open collector output pin (NPN Tr) 19 20
19 20
LO2 LO3
port output
21
XIN
Osillator input
connect a 4MHz ceramic resonator 21 1/2 Vcc output. Connect a filter capacitor. 22
22 26
XOUT
Osillator output
VREFD
reference output
2.5V
26
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MITSUBISHI SOUND PROCESSORS
M62461FP
"Super Single Chip " Surround Processor with Dolby Pro Logic Decoder
Voltage
No.
Symbol
Funtion
Discription of pin
Signal output precedent to delay generator that is S',L+R,L-R and MIC output
Equivalent circuit
27
MIX OUT
S',L+R,L-R and MIC output
4V
27
28
DELAY IN
delay input
2.5V
This is s delay input. Please input by AC cuppring. 28
40
LPF2 OUT
delay signal output 2.5V
delay signal output This is output of a delay volum that possible to control +3dB to -
40 41
41
VOL OUT
output of a delay volum
42
DELAYSIG IN
4V
Delay signal input to a mixing amplifier
42
43
DELAYSIG OUT
input from mixing 4V amplifier
Delay signal output from a mixing amplifier
43
44
FBIN EC Feedback signal input 4V
Feedback signal input with ECHO MODE Feedback signal input with SURROUND MODE
42
45
FBIN SU
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MITSUBISHI SOUND PROCESSORS
M62461FP
"Super Single Chip " Surround Processor with Dolby Pro Logic Decoder
No.
Symbol
Funtion
Voltage
Discription of pin Sorround channel output todelay generator. Always outputs signals,irrespectiv of the operation mode (2-/3-/4-channel)
Equivalent circuit
46
S'OUT
Sch output
4V
46
47
LPIN
Negative input of LPF This amplifier compornent 7KHz-LPF 4V with external resistances and capaciters. LPF output is conected to input of Modifide BNR.
47
48
DBIN
LPF output
48
72
LIN
Lch input 4V
Input of Lch and Rch that is non-inverted input type. Please pul-up to VREF by external resistances for DC bias.
72 73
73
RIN
Rch input
70
LT
Auto-balance Lch output 4V
Auto-balance output
71
RT
Auto-balance Rch output
70 71
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MITSUBISHI SOUND PROCESSORS
M62461FP
"Super Single Chip " Surround Processor with Dolby Pro Logic Decoder
ABSOLUTE MAXIMUM RATINGS
Symbol
Vcc VDD Pd K Topr Tstg
Parameter
Supply voltage
Test conditions
Limits
10.5 6.5 1.37 13.7 -20 to +75 -40 to +125
Unit
V V W mW/ C C C
standard board Power dissipation Thermal derating Ta25 C Operating temperature Storage temperature
THERMAL DERATING
POWER DISSIPATION Pd (W)
1.5
1.37
1.0
0.685
0.5
0
0
25
50
75
100
125
150
AMBIENT TEMPERATURE Ta ( C)
Standard board
-board size -board thickness -board material -copper pattern copper thickness copper size 18m 0.25mm(width) 30mm(length / lead) 70mmx70mm 1.6mm glass epoxy
RECOMMENDED OPERATING CONDITION
Symbol
Vcc VDD fck
Parameter
Analog supply voltage Digital supply voltage OSC clock
Conditions
Min
Ratings Typ
Max
Unit V V MHz
8.0 4.5
9.0 5.0 4
10.0 5.5
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MITSUBISHI SOUND PROCESSORS
M62461FP
"Super Single Chip " Surround Processor with Dolby Pro Logic Decoder
ELECTRICAL CHARACTERRISTICS (DECODER)
Vcc=9V,VDD=5V 0dB Reference=300mVrms/1KHz at C-OUT unless otherwise noted.
(Cch Trimmer=0dB)
Symbol Overall
Icc IDD
Parameter
Circuit Current Circuit Current
Conditions
Quiescent Quiescent Quiescent
Min
Limits Typ
Max
Unit
25 25 3.5 4.0 5 4
Reference Voltage Vref Input Auto Balance CPR CER VoL MR HRAM THDAM SNAM
Capture Range Error Correction Output Level Accuracy relative to C ch Matrix Rejection relative Headroom Total Harmonic Distortion
50 50 4.5
mA mA V dB dB
Adaptive Matrix
L,R,S'ch out L,R,C,S'ch out L,R,C,S' out L,R,C,S'ch out 4ch mode L,Rch out 2ch mode
Rg=0,weighted CCIR/AMR 4chmode
-0.5 25 15
0 40 17 0.05 0.002 80 100 -12.5 0
0.5
dB dB dB
0.2 0.05
% dB
Signal to Noise Ratio
75 95 -15
L,Rch out
2ch mode
Noise Sequencer
(0dBd Reference is input at NR-IN when adjust to 0dB (300mVrms/100Hz) at S out.
Vno Vno
Output Noise Level Output Level Accuracy relative to C ch
-10 0.5
dB dB
L,R,S'ch out
-0.5
Modified B type Noise Reduction
VGNR DEC1 DEC2 DEC3 DEC4 THDNR HRNR SNNR
Voltage Gain Decode Responce 1 Decode Responce 2 Decode Responce 3 Decode Responce 4 Total Harmonic Distortion Headroom Signal to Noise Ratio
Vin=0dBd,f=100Hz
Vin=0dBd,f=1.0kHz Vin=-15dBd,f=1.4kHz Vin=-20dBd,f=1.4kHz Vin=-40dBd,f=5.0kHz Vin=0dBd,f=1kHz THD=1%
Rg=0, weighted CCIR/AMR
-1.6 -3.0 -4.9 -6.8 15 73 -14 -37 0.6
9.2 -0.1 -1.5 -3.4 -5.3 0.07 17 78 -12 -31 1.0 0.05
dB 1.4 0 -1.9 -3.8 0.3
dB % dB dB
C,S ch Trimmer ATT-12 attenuation level:-12dB ATTmax Maximum attenuation Trimmer step Surround (L+R,L-R) THDSU SNSU
Total Harmonic Distortion Signal to Noise Ratio
Digital Input=-12 Digital Input=-31
-10 -25 1.4 0.2
dB dB dB % dB
TS
Vin=0dBd,f=1kHz
Rg=0, weighted CCIR/AMR
85
90
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MITSUBISHI SOUND PROCESSORS
M62461FP
"Super Single Chip " Surround Processor with Dolby Pro Logic Decoder
ELECTRICAL CHARACTERRISTICS (DIGITAL DELAY)
(Ta=25 C,Vcc=9V,VDD=5V,Vin=200mVrms, fck=4MHz unless otherwise noted)
Limits Min Typ Max
Symbol Digital Delay
Parameter
Conditions
Unit
12.4 17.0 25.6 38.0 46.2 137.5 186.6
15.4 20.0 28.6 41.0 49.2 147.5 196.6 0 0.3 0.3 0.5 0.6 0.7 1.5 2.0
18.4 23.0 31.6 44.0 52.2 157.5 206.6 3.0 0.6 0.6 1.0 1.2 1.4 3.0 4.0 Vrms -80 -80 -80 -75 -75 -67 -62 6 -60 dB dB dBv % dB
Td
Delay time
See Delay time contorol (14/20) for delay time setting.
ms
Gv
Input-output gain
Td=15.4ms Td=20.0ms Td=28.6ms
-3.0
THD
Output distortion
30kHz LPF
Td=41.0ms Td=49.2ms Td=147.5ms Td=196.6ms
Vomax Maximum output voltage
30kHz LPF,THD=10% Td=15.4ms Td=20.0ms
0.7
1.0 -92 -92 -92 -90 -90 -82 -77
No
Output noise voltage
Rg=620, Vi=0mVrms, IHF-A
Td=28.6ms Td=41.0ms Td=49.2ms Td=147.5ms Td=196.6ms
Delay Volume
(VOL OUT)
Gv ATTmax
Input-output gain Maximum attenuation
Volume max Delay off mode,Volume min,IHF-A
0
3 -70
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C-62461-82B
V i48 V i45 0.1 0.1 0.1 Vo46 0.1 Vo43 Vo41 V i44 V i42 10 24k
4.7
0.1
0.1
0.1
4.7
0.22
0.22
0.22
0.68
0.22
0.047
330k
0.022
0.022
0.047
0.047
0.0056
24K 0.1 100k Vo40 100k
64 42
0.1 VOL
63 61 57 55 51 44 41 60 58 56 50 45
62 59 53 49 47 46
54
52
48
43
0.1
LOG DIFFERENCE AMPLIFIERS DUAL-TIME CONSTANT AND THRESHOLD SWITCHES SU EC MODIFIED B-TYPE NR DECODER
0.1
SFB
ic li No arametr some p
680p 0.0018 39 38 S'
+3.2dB MOS +9.2dB
FULL WAVE RECTIFIER
15k
47k
0.1
VCA
0.1
BPF
67
NETWORKS
TEST CIRCUIT
680p 37
LPF
66
MIX
65
+ 40
0.01 0.068* 36 0.1* 35
0.1
L C R
0.1
BPF
70
AUTO BALANCE CENTER MODE
o fi r a PcR;Ehis is nmtita ane subject to ch s ti e T
SELECTOR
D/A
69
COMBINNING
L+R L-R
15k
47k
68
22k
71
-6.0dB ATT
0.1* 34
MIC
RY . L I M I N Al specificationange.
73
L-R 2
L+R 2
V i73
10 10
Rin
SERVO
16kSRAM
L
RC
A/D
V i72
LOGIC
Lin SELECTOR2
VCA
CONTROL
72
33 32 31
0.068*
22
22k -3.2dB ATT
+ SELECTOR3 + -
74
S74
+/S'
4.7M
0.0018
AVcc +9V
VREF
IREF
SELECTOR1
LO2
C
ST
S
TEST CNT
1 9 10
10k Cout Sout
2 4 0.1 6 11
3
5
7
8
12
13
SDA
L CT
R
MIC in
14
15
16
SCL
17
18
LO1
19
20
2
LO3
Lout
Rout
10k
10
10
10
10
10
10
2k
2k
2k
MITSUBISHI ELECTRIC ( 11 / 20 )
I C bus interface
VOL VOL AGND
2
100
LPF
75
AVcc
30 0.01 29 28 27
CLK VREFD V i28 1 1
76
VREFA
220
77
100k
78
Vo27
10
22 26
AVdd DVss AVss
79
220k + DVdd
NOISE SEQUENCER
80
25
AVdd +5V
0.0056
21
22 S21
1 12
23
24
47
1
15 1 14
16
1 2 1 2 1 2
1M 1k 4MHz
The capacitors maked with * should be of relative precision 5%max
V i10 V i12 DVdd +5V
M62461FP
MITSUBISHI SOUND PROCESSORS
"Super Single Chip " Surround Processor with Dolby Pro Logic Decoder
C-62461-82B
Vo4 Vo6 Vo7 Vo5
Vo2
Vo3
S18
18 19 20
27p
Units Resistance : Capacitance : F
DGND(5V) AGND(5V)
Vo18
Vo19
Vo20
Vi21 Vo22
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MITSUBISHI SOUND PROCESSORS
M62461FP
"Super Single Chip " Surround Processor with Dolby Pro Logic Decoder
I2 C BUS INPUT DATA FORMAT
SS
(1) SLAVE ADDRESS (2) SUB ADDRESS (3) DATA
A
A
AP
Starting term
Acknowledge bit
Acknowledge bit
Ending term
(1)Slave address
A6 0 A5 0 A4 1 A3 1 A2 1 A1 1 A0 0 R/W
(2)Sub address
SA7 SA6 SA5 SA4 SA3 SA2 SA1 SA0
(3)Data
D7 D6 D5 D4 D3 D2 D1 D0
EMPTY
BIT11BIT10 BIT9 BIT8
BIT7 BIT6 BIT5 BIT4 BIT3 BIT2 BIT1 BIT0
(4)Function table
CONTROL
ADD/SUB
DATA
NOISE SEQ SELECTOR3 SELECTOR1 CENTER MODE No use No use
ADDRESS
0 0 1 1 0 1 0 1
BIT 0 BIT 1 BIT 2 BIT 3 BIT 4 BIT 5 BIT 6 BIT 7 BIT 8 BIT 9 BIT 10 BIT 11
SELECTOR2
DECODER
MIX
LO1
LO2
LO3
Cch. TRIMMER DELAY
Sch. TRIMMER
S1
S2
S3
V1
V2
V3
V4
SFB
MOS MIC
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MITSUBISHI SOUND PROCESSORS
M62461FP
"Super Single Chip " Surround Processor with Dolby Pro Logic Decoder
(5)DECODER control table
ADDRESS(BIT10,11)=0,0 ADD/SUB mode ADD SUB BIT0 0 1 NOISE SEQ mode BIT1 mode BIT2 BIT3 OFF ON 0 1 L C R S ADDRESS(BIT10,11)=0,1 SELECTOR2 mode BIT0 BIT1 S' L+R L-R MIC 0 0 1 1 0 1 0 1 SELECTOR3 mode BIT2 BNR OUT D OUT
3STEREO/MUTE
0 0 1 1
0 1 0 1
SELECTOR1 mode BIT4 BIT5 PRO LOGIC 0 0 0 1 BY-PASS OTHER SUR L/R MUTE 1 1 0 1
CENTER MODE mode BIT6 BIT7 WIDE NORMAL PHANTOM OFF 0 0 1 1 0 1 0 1
DELAY MIX SWITCH
BIT3 0 1 0 1 BIT4(MIX) DMIXSW
Remarks MixingOFF MixingON
0 0 1 1
0 1
OFF ON
LO(LOGIC DATA OUT) Open Collector BIT5 BIT6 BIT7 mode (LO1) (LO2) (LO3) OUTPUT DATA "L" OUTPUT DATA "H" 0 1 0 1 0 1
ADDRESS(BIT10,11)=1,0 DATA 0 1 Cch. TRIMMER BIT0 BIT1 BIT2 0dB -1dB 0dB -2dB 0dB -4dB BIT3 0dB -8dB BIT4 0dB -16dB DATA 0 1 Sch. TRIMMER BIT5 BIT6 BIT7 0dB -1dB 0dB -2dB 0dB -4dB BIT8 0dB -8dB BIT9 0dB -16dB
Volume table
C(S)ch. TRIMMER ATT(dB) BIT0(5) BIT1(6) BIT2(7) BIT3(8) BIT4(9) ATT(dB) BIT0(5) BIT1(6) BIT2(7) BIT3(8) BIT4(9) 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12 -13 -14 -15 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 0 0 1 1 1 1 0 0 0 0 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 0 0 0 0 0 0 0 0 -16 -17 -18 -19 -20 -21 -22 -23 -24 -25 -26 -27 -28 -29 -30 -31 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 0 0 1 1 1 1 0 0 0 0 1 1 1 1 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
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MITSUBISHI SOUND PROCESSORS
M62461FP
"Super Single Chip " Surround Processor with Dolby Pro Logic Decoder
(6)DELAY control table
ADDRESS(BIT10,11)=1,1
DELAY TIME CONTROL
BIT0 (S1) BIT1 (S2) BIT2 (S3) DELAY TIME
VOLUME CONTROL
BIT3 (V1) BIT4 (V2) BIT5 (V3) BIT6 (V4)
DelayLPF
VOL attenuation
(Sampling frequency) (Cut-off frequency)
0 0 0 0 1 1 1 1
0 0 1 1 0 0 1 1
0 1 0 1 0 1 0 1
15.4 ms (1MHz) 20.0 ms (667kHz) 28.6 ms (500kHz) 41.0 ms (400kHz) 49.2 ms (333kHz) 147.5 ms (111.1kHz) 196.6 ms (83.3kHz)
7.0kHz
1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0
1 1 1 1 0 0 0 0 1 1 1 1 0 0 0 0
3.0kHz
Delay off mode (clock off)
FEEDBACK SWITCH
BIT7(SFB) SFBSW Remarks
Feedback OFF Feedback ON
OFF ON (In surround mode only)
0 1
1 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0
1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0
+3dB 0dB -2dB -3dB -4dB -6dB -8dB -9dB -10dB -12dB -15dB - - - - -
MODE SELECTOR
BIT8(MOS) MODESEL
0 1
SU line EC line
MICROPHONE MIXING SWITCH
BIT9(MIC) MICMIXSW Remarks Mic mixing OFF Mic mixing ON
0 1
OFF ON
(Note)Settings in power-on
When power is turned on, data is setting in under table by power on reset circuit.
DECODER Mode Settings ADD/SUB ADD NOISE SEQ OFF SELECTOR1 PRO LOGIC CENTER MODE WIDE S' SELECTOR2 BNR OUT SELECTOR3 "L" LO(LOGIC OUT) 0dB, ATT(-) Cch.TRIMMER Sch.TRIMMER 0dB, ATT(-) DELAY Mode DELAY TIME CONTROL VOLUME CONTROL FEEDBACK SWITCH MODE SELECTOR DELAY MIX SWITCH MICROPHONE MIXING SWITCH Settings 20.0ms - OFF SU line OFF OFF
MITSUBISHI ELECTRIC ( 14 / 20 )
C-62461-82B
FUNCTION MODE (EXAMPLE)
VOLUME LEVEL
Cch Trimmer Sch Trimmer 1 2 3
FEEDBACK
SWITCH CONDITION
SELECTOR
Delay CENTER ADD/SUB MIX SW MODE MODE
MIC MIX
MODE
SUBMODE Delay VOL
INPUT
WIDE
ic li No arametr some p
DIGITAL DELAY
DIGITAL DELAY
NOTE
WIDE
0 to -31dB 0 to -31dB 1dB/step 1dB/step
VOL OFF (0dB)
3STEREO
PHANTOM
BNR OUT PRO LOGIC
NORMAL
NORMAL
td=15.4ms, 20.0ms, 28.6ms
S'
OFF SU OFF OFF
S'
DOLBY PRO LOGIC
o fi r a PcR;Ehis is nmtita ane subject to ch s ti e T
RY . L I M I N Al specificationange.
PHANTOM
DISCO td=20ms
VOL ATT
L-R
DOUT
PHANTOM
SUB
ON OFF
OFF
DIGITAL SPACE SURROUND
KARAOKE/ECHO
BY-PASS
MITSUBISHI ELECTRIC ( 15 / 20 )
+3dB 0dB -2dB -3dB OTHER SUR
Hall
td=49.2ms *Delay time can be set to 5position(15.4, 20.0,28.6,41.0 49.2mSec). L+R
ADD
SU OFF
LIVE
-4dB -6dB
td=28.6ms
* Pro Logic decoder function is alive. For example C/S trimmer can be available.
Feedback level can be (L-R) changed 2 by output port control(see (L+R) block diagram) 2
WIDE NORMAL
5step delay time
-8dB -9dB -10dB -12dB -15dB
S'
BNROUT
ADD SUB DOUT
PHANTOM
ON OFF
Option
L-R
(BW=7kHz,fck=4MHz)
L+R 3STEREO
SHORT ECHO -
td=147.5ms
BW=3KHz
BY PASS
MIC 3STEREO
OFF
ADD
ON
EC
OFF
ON
MIC
M62461FP
MITSUBISHI SOUND PROCESSORS
"Super Single Chip " Surround Processor with Dolby Pro Logic Decoder
C-62461-82B
-31dB -
LONG ECHO
td=196.6ms
BY-PASS
td=20.0ms
BY PASS
S'
3STEREO
OFF
ADD
OFF
SU
OFF
OFF
S'
ic li No arametr some p
o fi r a PcR;Ehis is nmtita ane subject to ch s ti e T
RY . L I M I N Al specificationange.
MITSUBISHI SOUND PROCESSORS
M62461FP
"Super Single Chip " Surround Processor with Dolby Pro Logic Decoder
FUNCTION
Block Diagram
BY-PASS PRO LOGIC OTHER MUTE
SELECTOR1
Lout
NOISE SEQUENCER
Rout
CENTER R MODE CONTROL C WIDE
NORMAL PHANTOM OFF
L
INPUT BALANCE
Lin
SELECTOR4
ADAPTIVE MATRIX
C.Trimmer (0 to -31dB) ADD/SUB
SELECTOR3
Cout CT
Rin S'
(L+R)
SELECTOR2
3STEREO/MUTE
+ -
2
(L-R)
Modifide BNR
2 MIC VREFA AVcc (+9V) AGND
SU
FEEDBACK
MIC
MIC MIX
BNR OUT DOUT
S.Trimmer
(0 to -31dB)
Sout Dout
Delay Mix SW
MOS EC
Digital Deley
LO1
I C bus Interface
VOL
+
2
-
LO2 LO3 GND
Echo filter Surround filter
7kHz LPF
AVDD VDD (+5V) 4MHz
SCL
SDA
Block name
INPUT BALANCE NOISE SEQUENCER ADAPTIVE MATRIX
Function
Correction of a level error between the input Lch and Rch for optimum decorder performance A noise sequencer circuit for ajustment of output level
Determine the direction and relative magnitude of encoded soundfield.
CENTER MODE CONTROL
Select 4 - center mode position (WIDE/NORMAL/PHANTOM/OFF) This is the level ajustment volum of Cch and Sch. ( 0 to -31 dB : 1dB/step )
C.Trimmer S.Trimmer
MITSUBISHI ELECTRIC ( 16 / 20 )
C-62461-82B
ic li No arametr some p
o fi r a PcR;Ehis is nmtita ane subject to ch s ti e T
RY . L I M I N Al specificationange.
MITSUBISHI SOUND PROCESSORS
M62461FP
"Super Single Chip " Surround Processor with Dolby Pro Logic Decoder
Block name
Modifide BNR
Function
This block restores the signal to its original spectrum while reducing noise and certain crosstalk signals in a final stage of the surround chain. Select a positive phase signal or a negative phase signal with DIGITAL SPACE SURROUND MODE. This is a selective switch to select the output signal of Lout and Rout from BY-PASS, PRO LOGIC, OTHER SUR and MUTE . This is a selective switch to select the output signal of Sout from S', L+R, L-R and MIC. This is a selective switch to select the output signal of Sout from BNRout, Dout and 3STEREO/MUTE. This is a switch to connect a noise sequencer output to ADAPTIVE MATRIX stage for level ajustment. Make 7 kinds of delay signal s.(15.4msec to 196.6msec) The delay function and CLK signal stop at DELAY OFF MODE. This mode is for suppress bad effect of digital noize. This is a switch to select feedback mode(ON/OFF) for SURROUND MODE . This is a switch to select a feedback signal from surround signal and echo signal. Control the ATT level of delay signal from 3dB to - (12-step) This is a switch to mix miclophone signal to a main signal (Lch,Rch) This is a switch to select output or not a mixed signal to DOUT pin.
MITSUBISHI ELECTRIC ( 17 / 20 ) C-62461-82B
ADD/SUB
SELECTOR1
SELECTOR2
SELECTOR3
SELECTOR4
Digital Deley
FEEDBACK
MODE SEL(MOS)
VOL
MIC MIX Delay Mix SW
ic li No arametr some p
o fi r a PcR;Ehis is nmtita ane subject to ch s ti e T
RY . L I M I N Al specificationange.
MITSUBISHI SOUND PROCESSORS
M62461FP
"Super Single Chip " Surround Processor with Dolby Pro Logic Decoder
AUTO MUTE FUNCTION
The IC carries out auto mute function at the time of powerring up, delay time setting change, and cancelling delay off mode, in order to suppress shock noise that the digital delay may produce. At power-on
* Transient noise common with power up occurs.
RESET TIME Power up Freed from resettung
MUTE TIME Freed from muting Internal delay time setting
At delay time setting change Delay signal before change Delay signal after change
MUTE TIME Instruction to change delay time Freed from muting Internal delay time change
At canceling delay off mode
MUTE TIME Canceling delay off mode Freed from muting
Mute time changes depending on set (or preset) delay time.
DELAY TIME 15.4 to 49.2 ms 147.5 , 196.6 ms
MUTE TIME 123 ms 492 ms
MITSUBISHI ELECTRIC ( 18 / 20 )
C-62461-82B
APPLICATION EXAMPLE
R48 RA44 R47 C44 C48 R44 47 45 44 42 C40
VOL C41
RA45 R45 C45
C61
C58
C64
C56
C53
C52
C50 C49
C47
C63
C60
C59
C57
C55
C54
C62
64
63 61 57 55 51 41 60 58 56 50
62 59 53 49 46
54
52
C51
R51
48
43
ic li No arametr some p
C65
LOG DIFFERENCE AMPLIFIERS DUAL-TIME CONSTANT AND THRESHOLD SWITCHES MODIFIED B-TYPE NR DECODER
SFB
SU
EC
C66
MOS +9.2dB
FULL WAVE RECTIFIER
MIX
65
+ 40 C39 39 38
RA66 R66
C70
VCA
C67 R67 67 C68 S'
+3.2dB COMBINNING NETWORKS
BPF
LPF
66
C38 37 C36 36 35 C35 34 C34 33
L+R L-R
RA68
L C R
R68
68
C71
C69
BPF
69
D/A
o fi r a PcR;Ehis is nmtita ane subject to ch s ti e T
R69 -6.0dB ATT
CENTER MODE
70
AUTO BALANCE
SELECTOR
RY . L I M I N Al specificationange.
R72
L RC L+R 2
71
16kSRAM
LOGIC
A/D
Lin
72
MIC
VCA
SELECTOR2
CONTROL
Rin
C72 C73
SERVO
C32 32 31
73
L-R 2
C74
R73 -3.2dB ATT
+ SELECTOR3 + -
74
R74 +/S'
C30
C75
LPF
VREF
IREF
SELECTOR1
TEST CNT
1 4 9 R9 R6 C5 C6 C8 8 10
2
3
5 6
7
11
12
13
SDA
SCL
LO2
LO1
LO3
C2
C3
MITSUBISHI ELECTRIC ( 19 / 20 )
I C bus interface
VOL VOL ST S AGND CT C
2
AVcc +9V
75
AVcc
30 C29 29 28 C27 27
CLK
76
VREFA
C77
77
R78
78
C79
C26
VREFD
79
26
AVdd
NOISE
R80 + -
SEQUENCER
80
DVdd DVss
25
AVss
C80
C25 AVdd
+5V
L
R
14
15
16
17
18
19
20
21 R21
22
23
24
C1
MCU
C12
R22 C21 4MHz
MIC in DVdd +5V DGND
M62461FP
MITSUBISHI SOUND PROCESSORS
"Super Single Chip " Surround Processor with Dolby Pro Logic Decoder
C-62461-82B
SURROUND LEVEL
Cout Sout
C22
Lout
Rout
(EXAMPLE) FEEDBACK LEVEL CONTROL
ic li No arametr some p
o fi r a PcR;Ehis is nmtita ane subject to ch s ti e T
RY . L I M I N Al specificationange.
MITSUBISHI SOUND PROCESSORS
M62461FP
"Super Single Chip " Surround Processor with Dolby Pro Logic Decoder
OPTIONAL PARTS LIST
Parts No. C1 C2 C3 C5 C6 C8 C12 C21 C22 C25 C26 C27 C29 C30 C32 C34 C35 C36 C38 C39 C40 C41 C44 C45 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 C57 C58 C59 C60 C61 C62 C63 C64 Values 47 10 10 10 10 0.1 1 27 27 100 22 1 0.01 0.0018 0.068 0.1 0.1 0.068 0.01 0.0018 0.1 0.1 1200 470 820 0.1 0.0056 0.047 0.68 0.22 0.22 4.7 4.7 0.22 0.22 0.1 0.047 0.047 0.1 0.1 0.022 0.022 Unit F F F F F F F pF pF F F F F F F F F F F F F F pF pF pF F F F F F F F F F F F F F F F F F Tol. Parts No. C65 C66 C67 C68 C69 C70 C71 C72 C73 C74 C75 C77 C79 C80 Values 0.1 680 0.1 680 0.1 0.1 0.1 10 10 22 100 220 10 0.0056 Unit F pF F pF F F F F F F F F F F Tol. 20% 5% 5% 5% 5% 5% 5%
10%
20%
5% 5% 5% 5% 5% 5% 5% 5% 5%
10% 5%
10% 5% 5% 10% 10% 10% 20% 20% 10% 10% 20% 5% 5% 20% 20% 5% 5%
R6 R9 R21 R22 RA44 RA45 R44 R45 R47 R48 R51 R66 RA66 R67 R68 RA68 R69 R72 R73 R74 R78 R80
10 20 1 1 51 51 Vol Vol 24 24 330 47 15 7.5 47 15 7.5 22 22 4.7 100 220
k k M k k k
k k k k k k k k k k k M k k
5% 5% 10% 5% 5% 5% 5% 5% 5%
10% 1% 5%
MITSUBISHI ELECTRIC ( 20 / 20 )
C-62461-82B

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