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MITSUBISHI SOUND PROCESSORS
"Super Single Chip" Surround Processor with Dolby Pro Logic Decoder
M62460FP
DESCRIPTION
The M62460FP is a"super"single chip LSI supporting the Dolby Pro Logic surround.This LSI contains all sorts of functions including delay circuit function.In addition,it has Digital Space Surround functions (Disco,Hall,Live mode etc.) and echo function for karaoke. Note:Use of this LSI requires the license of Dolby Laboratories Licensing Corporation
Outline
Outline 80P6N 0.8mm pich QFP (20.0mmX14.0mmX2.8mm)
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.
Features
(Mode) Dolby Pro Logic
Digital Space Surround
Dolby Pro Logic Surround System which includes all of required functions. DISCO,Hall,LIVE mode and 5 delay time positions Short echo:td=147.5msec,Long echo:td=196.6msec Input signal through mode
Echo (KARAOKE) BY-PASS
System Configuration
Lch IN
L
Input AutoBalance Control
L Lch
Center/ operating mode control
Adaptive Matrix
S
R C R C
Rch IN
Noise Sequencer
L+R 2 L-R 2
7kHz LPF
LPF-IN
Modified Dolby B-NR
LPF-OUT
S
Center Trim Surround Trim
Master Volume Control
Rch CENTER
S SURROUND
NR-IN
Digital Delay
MCU INTERFACE
MIC IN DATA SCK REQ
MITSUBISHI ELECTRIC ( 1 / 20 )
C-62460-72E
MITSUBISHI SOUND PROCESSORS
"Super Single Chip" Surround Processor with Dolby Pro Logic Decoder
M62460FP
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 DATA SCK REQ 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
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
M62460FP 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-62460-72E
"Super Single Chip" Surround Processor with Dolby Pro Logic Decoder
MITSUBISHI SOUND PROCESSORS
DELAY SIG OUT
DELAY SIG IN FBIN SU FBIN EC S' OUT
M62460FP
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
MODIFIED B-TYPE NR DECODER +9.2dB
+
MIX
40
SU EC
LPF2 OUT
MOS
LPF
39
LPF2 IN2
67
L+R L-R VCA
COMBINNING
LBPF RLI 68
BPF
38 S'
+9.2dB
LPF2 IN1
37
DA INT OUT
69 70
SELECTOR AUTO BALANCE
L
C
R
D/A
RBPF LT RT
71
36
DA INT IN
35 16kSRAM
DA CONT LOGIC
CENTER MODE
34
SELECTOR2 L RC L+R 2
AD CONT MIC
CONTROL
A/D
LIN
72
VCA SERVO
73 74
AVcc + M SELECTOR1 + M -
33
AD INT OUT
RIN HOLDC AVcc 75
32
L-R 2
AD INT IN
31 -9.2dB ATT +/SELECTOR3
LPF1 OUT
LPF
S'
30
LPF1 IN2
BLOCK DIAGRAM
VREFA
76
VREF VREFA
29
LPF1 IN1
VREFG
77
IREF
28
DELAY IN
IREF
78 79 80
27
CLK SEQUENCER MCU interface NOISE
MIX OUT
NGC3 NGC2
VREFD DATA VOL L R CT C ST VOL S SCK REQ
26 + -
VREFD
DVdd AGND TEST CNT
AVdd
25
AVdd
DVss
AVss
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
NGC1
TEST CNT
SMRO
ROUT
COUT
LOUT
DATA
LO1
ST
SOUT
DVdd
SMRI
XIN
AGND
MIC IN
XOUT
SCK
CT
LO2
CMC
REQ
LO3
DVss
AVss
MITSUBISHI ELECTRIC ( 3 / 20 )
C-62460-72E
DBC3 DBC2 DBC1 DBIN LPIN
PSC4
PSC1
PSC5
PSC2
PSC6
PSC3
RLC8
RLC3
RLC7
RLC4
RLC1
RLC2
RLC5
MITSUBISHI SOUND PROCESSORS
"Super Single Chip" Surround Processor with Dolby Pro Logic Decoder
M62460FP
7.Discription of pin
No.
Symbol
Funtion
Voltage
Discription of pin
Equivalent circuit
2
LOUT
Lch output 4V
3
ROUT
Rch output
Direct output R-/L- channel when the operation mode is BY-PASS. When the mode is 4channel,they output Dolby prologic R-/L-channel signals.
2
3
4
CT
Cch output 4V
No output any signals when the operation mode is centermode is OFF or set to PHANTOM COUT is output from C.Trimmer. This pin outputs surround signals.Output is selected from BNR out.Dout No output signal when the operation mode is 3 STEREO/MUTE. SOUT is output from S.Trimmer. 6 7 4 5
5
COUT
Cch output
6
ST
Sch output 4V
7
SOUT
Sch output
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
MITSUBISHI ELECTRIC ( 4 / 20 )
C-62460-72E
MITSUBISHI SOUND PROCESSORS
"Super Single Chip" Surround Processor with Dolby Pro Logic Decoder
M62460FP
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
DATA
serial data "DATA" input input via serial data from MCU.
15
buffer
16
SCK
serial data "SCK" input
0
17 REQ serial data "REQ" input
16 17
buffer
18
LO1 port output Open collector output pin(NPN Tr)
18
19
20
19 20
LO2 LO3
21
XIN
Osillator input
connect a 4 - MHz ceramic resonator 21 1/2 Vcc output. Connect a filter capacitor. 22
22
XOUT
Osillator output
26
VREFD
reference output 2.5V
26
MITSUBISHI ELECTRIC ( 5 / 20 )
C-62460-72E
MITSUBISHI SOUND PROCESSORS
"Super Single Chip" Surround Processor with Dolby Pro Logic Decoder
M62460FP
No.
Symbol
Funtion
Voltage
Discription of pin
Equivalent circuit
27
MIX OUT
S',L+R,L-R and MIC output
4V
Signal output precedent to delay generator that is S,L+R,L-R and MIC output
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~
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
42
45
FBIN SU
Feedback signal input with SURROUND MODE
MITSUBISHI ELECTRIC ( 6 / 20 )
C-62460-72E
MITSUBISHI SOUND PROCESSORS
"Super Single Chip" Surround Processor with Dolby Pro Logic Decoder
M62460FP
No.
Symbol
Funtion
Voltage
Discription of pin
Equivalent circuit
46
S'OUT
Sch output
4V
Sorround channel output to delay generator. Always outputs signals,irrespectiv of the operation mode (2-/3-/4-channel)
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
MITSUBISHI ELECTRIC ( 7 / 20 )
C-62460-72E
MITSUBISHI SOUND PROCESSORS
"Super Single Chip" Surround Processor with Dolby Pro Logic Decoder
M62460FP
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~+75 -40~+125
Unit
V V W mW/C C C
standard board Power dissipation Ta25C Thermal derating Operating temperature Storage temperature
TERMAL 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
70mmX70mm 1.6mm glass epoxy
18m 0.25mm(width) 30mm(length / lead)
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
MITSUBISHI ELECTRIC ( 8 / 20 )
C-62460-72E
MITSUBISHI SOUND PROCESSORS
"Super Single Chip" Surround Processor with Dolby Pro Logic Decoder
M62460FP
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 L,Rch out 4ch mode
-0.5 25 15
2ch mode
0 40 17 0.05 0.002 80 100 -12.5 0
0.5
dB dB dB
0.2 0.05
% dB
Rg=0,weighted CCIR/AMR 4ch mode
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
MITSUBISHI ELECTRIC ( 9 / 20 )
C-62460-72E
MITSUBISHI SOUND PROCESSORS
"Super Single Chip" Surround Processor with Dolby Pro Logic Decoder
M62460FP
ELECTRICAL CHARACTERRISTICS (DIGITAL DELAY)
(Ta=25C,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 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
6 -60
dB dB
MITSUBISHI ELECTRIC ( 10 / 20 )
C-62460-72E
V i48 V i45 0.1 Vo46 0.1 0.1 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
680p
LPF
FULL WAVE RECTIFIER
MIX
65 0.0018 39 38 S'
+9.2dB
+ 40
TEST CIRCUIT
0.1
VCA
0.1
BPF
67 37
D/A
680p
MOS
15k
+9.2dB
47k
66
0.01 0.068 36 0.1 35 0.1
0.1
L C R
0.1
BPF
69
COMBINNING
NETWORKS
L+R L-R
15k
47k
68
* * *
34
70
AUTO BALANCE CENTER MODE
SELECTOR
22k
71
MIC
A/D
L
RC L+R 2
16kSRAM
V i72
LOGIC
Lin SELECTOR2
VCA SERVO
CONTROL
72
33 32 31
0.068
*
V i73
10 10
Rin
73
L-R 2
22
22k -9.2dB ATT
+ + -
74
S74
+/M SELECTOR3
4.7M S'
0.0018
LPF
AVcc +9V M
75
AVcc
30 0.01 29 28
V i28 1
100
100k
VREF
IREF
SELECTOR1
LO2
DATA
1 9 10
10k Cout Sout
2 4 0.1 6 11
3
5
7
8
12
13
14
15
16
SCK
TEST CNT
17
REQ
L CT C ST S
R
MIC in
18
LO1
19
20
2
LO3
Lout
Rout
10k
10
10
10
10
10
10
2k
2k
2k
M62460FP
MITSUBISHI SOUND PROCESSORS
"Super Single Chip" Surround Processor with Dolby Pro Logic Decoder
C-62460-72E
1 V i10 Vo4 Vo6 Vo7 Vo5
14 V i12 DVdd +5V
1M 4MHz 27p
1k
MITSUBISHI ELECTRIC ( 11 / 20 )
MCU interface DATA AGND DVdd SCK REQ VOL VOL
76
VREFA
220
77
78
27 1
CLK
Vo27
10
22
VREFD
79 + -
26
AVdd DVss AVss
NOISE
220k
SEQUENCER
80
25
AVdd +5V
0.0056
21
22 S21
1 12
23
24
47
15 1
16
17
1 2 1 2 1 2
The capacitors maked with * should be of relative precision 5%max S18
18 Vo18 19 Vo19 20 Vo20 Vi21 Vo22
Vo2
Vo3
Units Resistance : Capacitance : F
DGND(5V) AGND(5V)
MITSUBISHI SOUND PROCESSORS
"Super Single Chip" Surround Processor with Dolby Pro Logic Decoder
M62460FP
DIGITAL CONTROL SPECIFICATIONS
(1)DATA TIMING REQ
t7 t2 t3 t4 t8
SCK
t1 t5 t6
DATA
0
1
2
3
4
5
6
7
8
9
10
11
(note1) SCK is not accept when REQ is high (Note2)REQ must turn to high after SCK pulse turn to high.
Symbol t1 t2 t3 t4 t5 t6 t7 t8
Name SCK clock duration SCK "H" pulse width SCK "L" pulse width REQ hold time DATA setup time DATA hold time SCK setup time REQ "H" pulse width
Min 2 0.8 0.8 1.6 0.8 0.8 0.8 1.6
Typ
Max
Unit s s s s s s s s
(2)DATA FORMAT Serial Data Format
DATA ADDRESS BIT 0 BIT 1 BIT 2 BIT 3 BIT 4 BIT 5 BIT 6 BIT 7 BIT 8 BIT 9 BIT 10 BIT 11
ADD/SUB
NOISE SEQ
SELECTOR1 CENTER MODE
No use No use
0 0 1 1
0 1 0 1
SELECTOR2 SELECTOR3 Cch. TRIMMER
MIX
LO1
LO2
LO3
Sch. TRIMMER
S1
S2
S3
V1
V2
V3
V4
SFB
MOS MIC
MITSUBISHI ELECTRIC ( 12 / 20 )
C-62460-72E
MITSUBISHI SOUND PROCESSORS
"Super Single Chip" Surround Processor with Dolby Pro Logic Decoder (3)DECODER
ADDRESS(BIT10,11)=0,0 ADD/SUB mode BIT0 ADD SUB 0 1 NOISE SEQ BIT1 mode BIT2 BIT3 mode L OFF 0 0 0 ON 1 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
M62460FP
SELECTOR1 mode BIT4 BIT5 PRO LOGIC 0 0 BY-PASS OTHER SUR L/R MUTE 0 1 1 1 0 1
CENTER MODE mode BIT6 BIT7 WIDE NORMAL PHANTOM OFF 0 0 1 1 0 1 0 1
0 1 1
1 0 1
DELAY MIX SWITCH
BIT3 0 1 0 1 BIT4(MIX) DMIXSW
Remarks Mixing OFF Mixing ON
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 code
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 -16 0 0 0 0 1 0 0 0 0 0 1 0 0 0 1 1 0 0 0 0 -17 -1 -2 0 1 0 0 0 -18 0 1 0 0 1 -3 1 1 0 0 0 1 1 0 0 1 -19 -20 -4 0 0 1 0 0 0 0 1 0 1 1 0 1 0 0 -21 -5 1 0 1 0 1 -6 -22 0 1 1 0 0 0 1 1 0 1 -23 -7 1 1 1 0 0 1 1 1 0 1 0 0 0 1 1 -8 0 0 0 1 0 -24 -9 -25 1 0 0 1 1 1 0 0 1 0 0 1 0 1 0 -10 -26 0 1 0 1 1 -11 1 1 0 1 0 1 1 0 1 1 -27 -12 0 -28 0 0 1 1 0 0 1 1 1 -13 -29 1 0 1 1 0 1 0 1 1 1 0 1 1 1 0 -30 -14 0 1 1 1 1 -15 1 1 1 1 1 1 1 1 1 0 -31
MITSUBISHI ELECTRIC ( 13 / 20 )
C-62460-72E
MITSUBISHI SOUND PROCESSORS
"Super Single Chip" Surround Processor with Dolby Pro Logic Decoder (4)DELAY
ADDRESS(BIT10,11)=1,1
M62460FP
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) SFB SW 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 SELECTOR3 BNR OUT LO(LOGIC OUT) "L" 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-62460-72E
FUNCTION MODE (EXAMPLE)
VOLUME LEVEL
Cch Sch Trimmer Trimmer 1 2 3
Delay CENTER ADD/SUB MIX SW MODE MODE
FEEDBACK
SWITCH CONDITION
SELECTOR
MIC MIX
MODE
SUBMODE Delay VOL
INPUT
WIDE
DIGITAL DELAY
DIGITAL DELAY
NOTE
WIDE
0~-31dB 0~-31dB 1dB/step 1dB/step
VOL OFF (0dB)
3STEREO
PHANTOM
BNR OUT PLO LOGIC
NORMAL
NORMAL
td=15.4ms, 20.0ms, 28.6ms
S'
OFF SU OFF OFF
S'
DOLBY PRO LOGIC
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
SU
ADD
LIVE
L+R
-4dB -6dB
td=49.2ms *Delay time can be set to 5position(15.4, 20.0,28.6,41.0 49.2mSec). td=28.6ms *Pro Logic decoder function is alive. For example C/S trimmer can be available.
OFF
WIDE NORMAL
Feedback level can be (L-R) changed 2 by output port control(see (L+R) block diagram) 2
ADD SUB
5step delay time
-8dB -9dB -10dB -12dB -15dB
S'
BNROUT
ON OFF
DOUT
PHANTOM
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
M62460FP
MITSUBISHI SOUND PROCESSORS
"Super Single Chip" Surround Processor with Dolby Pro Logic Decoder
C-62460-72E -31dB -
LONG ECHO
td=196.6ms
BY-PASS
td=20.0ms
BY PASS
S'
3STEREO
OFF
ADD
OFF
SU
OFF
OFF
S'
MITSUBISHI SOUND PROCESSORS
"Super Single Chip" Surround Processor with Dolby Pro Logic Decoder
M62460FP
14.FUNCTION
Block Diagram
BY-PASS PLOLOGIC 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~-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~-31dB)
Sout Dout
Delay Mix SW
MOS EC
Digital Deley
LO1
MCU Interface
VOL
+
-
LO2 LO3 GND
Echo filter Surround filter
7kHz LPF
AVDD VDD (+5V) 4MHz
REQ SCK DATA
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. Select 4 - center mode position (WIDE,NORMAL,PHANTOM,OFF) This is the level ajustment volum of Cch and Sch. ( 0~ -30 dB : 1dB/step )
CENTER MODE CONTROL
C.Trimmer S.Trimmer
MITSUBISHI ELECTRIC ( 16 / 20 )
C-62460-72E
MITSUBISHI SOUND PROCESSORS
"Super Single Chip" Surround Processor with Dolby Pro Logic Decoder
M62460FP
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~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-62460-72E
ADD/SUB
SELECTOR1
SELECTOR2
SELECTOR3
SELECTOR4
Digital Deley
FEEDBACK
MODE SEL(MOS)
VOL
MIC MIX Delay Mix SW
MITSUBISHI SOUND PROCESSORS
"Super Single Chip" Surround Processor with Dolby Pro Logic Decoder
M62460FP
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 15.4~49.2 ms 147.5 , 196.6 ms
MUTE TIME 123 ms 492 ms
MITSUBISHI ELECTRIC ( 18 / 20 )
C-62460-72E
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
C65
LOG DIFFERENCE AMPLIFIERS DUAL-TIME CONSTANT AND THRESHOLD SWITCHES MODIFIED B-TYPE NR DECODER
SFB
SU
EC
C66
MOS +9.2dB LPF
FULL WAVE RECTIFIER
MIX
65 39 38 S'
+9.2dB
+ 40 C39
RA66 R66
66
C70
VCA
C67 R67 67 C68
COMBINNING NETWORKS
BPF
C38 37 C36
D/A
L+R L-R
RA68
L C R
R68
68
C71
C69
BPF
69
36 35 C35
R69
70
AUTO BALANCE CENTER MODE
SELECTOR
R72
71
34 C34
A/D
MIC
LOGIC
VCA
SELECTOR2 L RC L+R 2
CONTROL
16kSRAM
Lin
72
33 C32 32 31
Rin
C72 C73
SERVO
73
L-R 2
C74
R73 -9.2dB ATT
+ + -
74
R74 +/M SELECTOR3
C30
LPF
VREF
IREF
SELECTOR1
C8
LO2
C2
C3
C1 R6 C5 C6
-COM
LO1
R9
LO3
MITSUBISHI ELECTRIC ( 19 / 20 )
S'
M MCU interface DATA AGND DVdd SCK REQ VOL VOL ST S CT C
AVcc +9V
75
AVcc
30 C29 29 28 C27 27
CLK
C75
76
VREFA
C77
77
R78
78
C79
C26
VREFD
79 + -
26
AVdd DVss TEST CNT AVss
NOISE
R80
SEQUENCER
80
25 C25 AVdd
+5V
C80 4 9 5 6 8 10 7 11
L
R
1
2
3
12
13
14
15
16
17
18
19
20
21
22
23 R22 R21
C12
M62460FP
MITSUBISHI SOUND PROCESSORS
"Super Single Chip" Surround Processor with Dolby Pro Logic Decoder
C-62460-72E
SURROUND LEVEL
Cout Sout
24
C21 4MHz
MIC in DVdd +5V
C22
Lout
Rout
DGND
(EXAMPLE) FEEDBACK LEVEL CONTROL
MITSUBISHI SOUND PROCESSORS
"Super Single Chip" Surround Processor with Dolby Pro Logic Decoder
M62460FP
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-62460-72E

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