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MITSUBISHI SOUND PROCESSORS
Dolby Pro Logic Surround Decoder
M62464AFP
Dolby Pro Logic Surround Decoder Description
The M62464FP is a Single Chip Dolby Pro Logic Surround Decoder. This LSI has all of required functions for Dolby Pro Logic Surround.
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
Features
Outline 80P6N 0.8mm pitch QFP (20.0mmx14.0mmx2.8mm)
Includes all functions necessary for Dolby Pro Logic Surround 3ch(C,SL,SR) Master Volume Digital Space Surround such as Disco, Hall and Live Pseudo Stereo Surround for Digital Space Surround Digital Echo for Karaoke Function Delay time 123,184msec 3-lines MCU control Current control oscillation circuit for system clock
System Configuration M62464AFP
Volume
LOUT LTIN
RTIN
Pro Logic Decoder
Digital Space Surround
ROUT
Trimmer Volume
COUT SLOUT SROUT MICIN
Digital Echo
ECHOOUT
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MITSUBISHI SOUND PROCESSORS
Dolby Pro Logic Surround Decoder
M62464AFP
DSELOUT
26
Pin Configuration
DAINTOUT DVOLOUT LPF2OUT ADINTOUT LPF1OUT DACONT DAINTIN ADCONT ADINTIN LPF2IN2 LPF2IN1 LPF1IN2 LPF1IN1 DVss
25
40
30
31
39
37
36
35
33
29
28
38
34
ECHOOUT BNR IN DBC1 DBC2 DBC3 PSC3 PSC6 PSC2 PSC5 PSC1 PSC4 RLC5 RLC2 RLC1 RLC4 RLC7 RLC3 RLC8 RLC6 LBPF2 LBPF1 RBPF2 RBPF1 ABL
41
32
27
DIN
REQ SCK DATA DVDD MICIN AGND CMC NC NC NC SRVOLOUT SRVOLIN SROUT SLOUT SLVOLIN SLVOLOUT PSRIN PSLIN SOUT COUT CVOLIN CVOLOUT ROUT LOUT
42
43
45
44
46
M62464FP XXXXXX
48
47
49
50
51
52
53
54
56
55
57
58
59
60
61
62
63
64
65
68
70
74
69
71
73
66
67
72
75
76
77
78
79
LTIN
AVcc
RTIN
NC
NGC3
NGC2
NGC1
IREF
NC
NC
NC
VREF1
ABR
MITSUBISHI ELECTRIC ( 2 / 22 )
NC
NC
NC
80
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
L-SW
BY-PASS SPACE 1
+
2
PROLOGIC MUTE
4 1 3
Block Diagram
1
NOISE SEQUENCER
LOUT
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LTIN
+/PROLOGIC MUTE
4 3 2
74
L
BY-PASS SPACE
2
INPUT AUTOBALANCE
SELECTOR
RTIN
C-SW
75
ADAPTIVE MATRIX
C
WIDE NORMAL PHANTOM OFF
R R-SW
CENTER MODE CONTROL
ROUT
CVOL
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CTRIM
SL-SW
1 2 3
3
CVOL OUT
SLVOL
SLTRIM
SR-SW
1
9
LPF A/D
D/A
LPF
MITSUBISHI ELECTRIC ( 3 / 22 )
SL
SLVOL OUT
SRVOL
2 3
Pseudo Stereo S'
SR
SRTRIM
14
SRVOL OUT
L+R L-R 2
Digital Delay 10Kbit SRAM Logic
F.B.VOL DELAYVOL
1 2
Modified BNR
1 2 3
DI-SW
2
1
S
3
4
DO-SW BNR-SW
MICIN
20
MCU Interface
MITSUBISHI SOUND PROCESSORS
Dolby Pro Logic Surround Decoder
M62464AFP
41
22
23
24
ECHOOUT
DATA SCK
REQ
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MITSUBISHI SOUND PROCESSORS
Dolby Pro Logic Surround Decoder
M62464AFP
FUNCTIONAL DESCRIPTION
FUNCTION
1 Fundamental function for Dolby Pro Logic Surround Decoder
DESCRIPTION
-Adaptive Matrix -Input Auto-Balance -Noise Sequencer -Center Mode Control ON/OFF WIDE/NORMAL/PHANTOM -Modified Dolby B type Noise Reduction -4ch(L,R,C,S), 3ch(L,R,C) Mode Switch
2 3 4
C,S(L,R) ch Master Volume C,S(L,R) ch Trimmer RAM for Digital Delay
0 to -79dB/1dB step, and - 0 to -31dB/1dB step 10K-bit RAM Digital delay circuit can be used for Space Surround such as a Disco, Hall or Live, and Karaoke echo. Pseudo Stereo Surround is available in Space Surround. Short Delay 15.4, 20.5, 25.6, 29.2, 51.2 msec Long Delay 123, 184 msec Delay Signal Feedback Volume -3 to -21 dB/3dB step, and - Delay Signal Effect Volume 0 to -18 dB/3dB step, and - Bypass the decode circuit Mute the Lch and Rch output Controlled by 3-lines serial data from MCU Including the Chip Address (2 bit) Including the oscillation circuit without external parts.
MITSUBISHI ELECTRIC ( 4 / 22 )
5 Circuit for Space Surround and Echo 6 Pseudo Stereo Surround 7 Digital Delay Time
8 Feedback Volume 9 Delay Effect Volume 10 Bypass Switch 11 Output Mute 12 MCU Interface
13 Current control oscillation circuit
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MITSUBISHI SOUND PROCESSORS
Dolby Pro Logic Surround Decoder
M62464AFP
ABSOLUTE MAXIMUM RATINGS
(Ta=25 C Unless otherwise noted)
Symbol Vcc
VDD
Parameter
Supply Voltage Power Dissipation Operating Temperature Storage Temperature
Conditions
Ratings 10.5 6.5 1.4 -20 to +75 -40 to +125
Unit V V W C C
Pd Topr Tstg
RECOMMENDED OPERATING CONDITION
Symbol Vcc
VDD VIL VIH Input Voltage(L) Input Voltage(H) 22,23,24pin 22,23,24pin
Parameter
Supply Voltage
Condition
Min
Limits Typ
Max
Units V V V V
8 4.5 0 2.7
9 5
10 5.5 0.7
VDD
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MITSUBISHI SOUND PROCESSORS
Dolby Pro Logic Surround Decoder
M62464AFP
ELECTRICAL CHARACTERISTICS
(Ta=25 C, Vcc=9V, VDD=5V, 0dBd=300mVrms, at COUT, f=1kHz unless otherwise noted)
Symbol Total
Icc IDD Auto-Balance CPR CER VoL MR HRAM THDAM SNAM Vno Vno VGNR DEC1 DEC2 DEC3 THDNR HRNR SNNR ATTmax ATTmin VOLS1 VOLS2 SNVOL Trimmer TRIMmax TRIMmin TRIMS Line THDLN SNLN CTLN Zi
Parameter
Circuit current Circuit current Capture range Error collection
Output level accuracy relative to Cch
Test condition
No signal No signal
Min.
Limits Typ.
Max.
Units
mA mA dB dB
30 15 5 4
45 25
Adaptive Matrix
L,R,SLch output L,R,C,SLch output THD=1%,
4ch mode
Matrix rejection Head room
-0.5 25 15 70 -15 -0.5 3.8 -1.6 -3.0 -6.8 15 68
0 40 17 0.05 80 -12.5 0 6.8 -0.1 -1.5 -5.3 0.07 17 78 -95
0.5
dB dB dB % dB dB dB dB dB % dB dB
Total harmonic distortion 4ch mode,30kHz LPF Rg=0,weighted CCIR/ARM S/N ratio Noise Sequencer Output noise level
Noise level accuracy relative to Cch
0.2
L,R,C,SLch output L,R,SLch output
-10 0.5 9.8 1.4 0 -3.8 0.3
Modified B-type Noise Reduction (0dB reference is 300mVrms/100Hz at SOUT)
Gain between input and output
Vin=0dBd,f=100Hz
Decode character 1 Decode character 2 Decode character 3 Total harmonic distortion Head room S/N ratio Maximum attenuation Minimum attenuation Volume step1 Volume step2 S/N ratio Maximum attenuation Minimum attenuation Trimmer step Total harmonic distortion S/N ratio Line cross-talk Input impedance
Vin=0dBd,f=1.0kHz Vin=-15dBd,f=1.4kHz Vin=-40dBd,f=5.0kHz Vin=0dBd,f=1kHz,30kHz LPF THD=1%
Rg=0,weighted CCIR/ARM
Master Volume ATT=-,Vi=2Vrms ATT=0dB,TRIM=0dB ATT=0 to -40dB,TRIM=0dB ATT=-40 to -79dB,TRIM=0dB ATT=-,CCIR/ARM TRIM=-31dB,VOLATT=0dB TRIM=0dB,VOLATT=0dB VOLATT=0dB 30kHz LPF DIN-AUDIO 95 70 11 MITSUBISHI ELECTRIC ( 6 / 22 ) -3.0 0.5 0.2 85 -34 -3.0 0.6 -87 3.0 1.5 1.8 dB dB dB dB dB -28 3.0 1.4 0.05 dB dB dB % dB dB 44 k 0 1.0 1.0 95 -31 0 1.0 0.002 100 80 22
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MITSUBISHI SOUND PROCESSORS
Dolby Pro Logic Surround Decoder
M62464AFP
(Ta=25 C, Vcc=9V, VDD=5V, Vin=300mVrms unless otherwise noted)
Symbol
Digital Delay GvD Td THDD
Parameter
Test conditions
Limits Min. Typ. Max.
Units
Voltage gain Delay time Total harmonic distortion
DIN-DVOLOUT,DVOL=0dB Td=20.5ms Td=20.5ms 30kHz LPF Td=51.2ms Td=184ms Td=20.5ms Vin=0Vrms JIS-A THD=10%
Td=15.4 to 51.2ms Gv=-3dB Td=123 , 184ms Gv=-3dB
-3.0 17.4
0 20.5 0.5 1.2 3.0 -92 -84 -80
+3.0 23.6 0.9 2.2 5.6 -80 -70 -65
dB ms %
NoD
Output noise voltage
Td=51.2ms Td=184ms
dBV
Vomax LPFfc
Maximum output voltage LPF cut-off frequency
0.7 6.0
1.0 7.0 3.0 8.0
Vrms kHz kHz
Feedback volume FBATTmax FBATTmin FBVOLS Maximum attenuation Minimum attenuation Volume step ATT=- ATT=-3dB -6.0 1.5 -70 -3.0 3.0 -60 0 4.5 dB dB dB
Delay volume DLATTmax DLATTmin DLVOLS Maximum attenuation Minimum attenuation Volume step ATT=- ATT=0dB -3.0 1.5 -70 0 3.0 -60 3.0 4.5 dB dB dB
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MITSUBISHI SOUND PROCESSORS
Dolby Pro Logic Surround Decoder
M62464AFP
SERIAL DATA CONTROL FORMAT
(1)Data Input Format DATA is read at the rising edge of SCK, and loaded last 16 bits at the rising edge of REQ.
DATA SCK REQ
D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 D15
D0
D1
D2 D3 D4 D5
D6 D7 D8 D9 D10 D11 D12 D13 D14 D15
Pro Logic Mode
L L L H L L L H H L H L H H H L L H
"L"
Mode Set Delay Time
Delay Volume Feedback Volume
Center Mode
AutoBalance
Noise Sequencer
Space Surround Mode
L Cch Volume
H
SLch Volume SRch Volume
Chip Address
Cch Trimmer SLch Trimmer
Test Mode (user inhibit)
SRch Trimmer
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MITSUBISHI SOUND PROCESSORS
Dolby Pro Logic Surround Decoder
M62464AFP
(2)Control condition
Control Mode 1
Mode Set
Contents
Bypass / Pro Logic / Space Surround / Echo / Mute 4ch Pro Logic / 3ch stereo Wide / Normal / Phantom / OFF 15.4, 20.5, 25.6, 29.2,51.2 ms (Short delay) 123, 184ms (Long delay) ON / OFF Lch / Rch / Cch / Sch Input Auto-Balance ON / OFF L / R Output : Pro Logic / Space Surround Delay front mixing : Invert / Non-Invert Delay input : S' / L-R / (L+R)/2 BNR : ON / OFF Surround signal : Monaural / Pseudo Stereo 0 to -18dB / 3dB step & - -3 to -21dB / 3dB step & - C,SL,SR ch Master Volume 0 to -79dB / 1dB step & - C,SL,SR ch Trimmer 0 to -31dB /1dB step Input data effect or not
2 Pro Logic Mode 3 Center Mode 4
Delay Time
5 Noise Sequencer 6 7
Auto-Balance Space Surround Mode
8
Delay Volume
9 Feedback Volume 10 Master Volume 11 Trimmer 12 Chip Address
(3)Set Condition a. Mode Set (D0="L",D1="L",D2="L") D4 L L L H H D5 L H H L L D6 H L H L H Condition
Bypass Dolby Pro Logic Surround Space Surround Echo Mute
MITSUBISHI ELECTRIC ( 9 / 22 )
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b. Pro Logic Mode (D0="L",D1="L",D2="L") D7 L H Condition 4ch Pro Logic 3ch Stereo
MITSUBISHI SOUND PROCESSORS
Dolby Pro Logic Surround Decoder
M62464AFP
c. Center Mode (D0="L",D1="L",D2="L") D8 L L H H D9 L H L H Condition Wide Normal Phantom OFF
d. Delay Time (D0="L",D1="L",D2="H") D5 L L L L H H H D6 L L H H L L H D7 L H L H L H L Delay Time 15.4msec 20.5msec 25.6msec 29.2msec 51.2msec 123msec 184msec
Sampling Frequency
LPF Cut-off Frequency
500kHz 500kHz 400kHz 333kHz 200kHz 83.3kHz 55.6kHz 3kHz 7kHz
e. Noise Sequencer (D0="L",D1="L",D2="L") D11 L D12 L L H H D13 L H L H
MITSUBISHI ELECTRIC ( 10 / 22 )
Condition Noise Sequencer OFF Lch Rch Noise Sequencer ON Cch Sch
H
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MITSUBISHI SOUND PROCESSORS
Dolby Pro Logic Surround Decoder
M62464AFP
f. Auto-Balance (D0="L",D1="L",D2="L") D10 L H Condition Auto-Balance OFF Auto-Balance ON
g. Space Surround Mode (D0="L",D1="L",D2="H") Delay Mixing Polarity L / R Output D8 L H Delay Input D10 D11 L H H X L H X : L or H Delay Input S' L-R (L+R)/2 Condition
Pro Logic Space Surround
D9 L H BNR D12 L H
Mixing Polarity L+Delay signal / R+Delay signal L+Delay signal / R-Delay signal
BNR
OFF ON
Surround Signal D13 L H Surround Signal
Monaural Pseudo Stereo
h. Delay Volume (D0="L",D1="H",D2="L",D3="L") D4 L L L L H H H H D5 D6 L L H H L L H H L H L H L H L H
Volume
i. Feedback Volume (D0="L",D1="H",D2="L",D3="H") D4 L L L L H H H H D5 L L H H L L H H D6 L H L H L H L H
Volume
0dB -3dB -6dB -9dB -12dB -15dB -18dB -
MITSUBISHI ELECTRIC ( 11 / 22 )
-3dB -6dB -9dB -12dB -15dB -18dB -21dB -
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MITSUBISHI SOUND PROCESSORS
Dolby Pro Logic Surround Decoder
M62464AFP
j. C,SL,SR ch Volume (D0="L",D1="H")
Volume Level
0 dB -2 dB -4 dB -6 dB -8 dB -10 dB -12 dB -14 dB -16 dB -18 dB -20 dB -22 dB -24 dB -26 dB -28 dB -30 dB -32 dB -34 dB -36 dB -38 dB -40 dB -42 dB -44 dB -48 dB -52 dB -56 dB -60 dB -64 dB -68 dB -72 dB -76 dB -
D11 L L L L L L L L L L L L L L L L H H H H H H H H H H H H H H H H
D10 L L L L L L L L H H H H H H H H L L L L L L L L H H H H H H H H
D9 L L L L H H H H L L L L H H H H L L L L H H H H L L L L H H H H
D8 L L H H L L H H L L H H L L H H L L H H L L H H L L H H L L H H
D7 L H L H L H L H L H L H L H L H L H L H L H L H L H L H L H L H
Volume Level
D13 L L H H
D12 L H L H
0 dB -1 dB -2 dB -3 dB
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MITSUBISHI SOUND PROCESSORS
Dolby Pro Logic Surround Decoder
M62464AFP
k. C,SL,SR ch Trimmer (D0="H",D1="L") D8
Trimmer Level
D7 D12 L L L L L L L L H H H H H H H H L L L L L L L L H H H H H H H H
D6 D11 L L L L H H H H L L L L H H H H L L L L H H H H L L L L H H H H
D5 D10 L L H H L L H H L L H H L L H H L L H H L L H H L L H H L L H H
D4 D9 L H L H L H L H L H L H L H L H L H L H L H L H L H L H L H L H
D13 L L L L L L L L L L L L L L L L H H H H H H H H H H H H H H H H
0 dB -1 dB -2 dB -3 dB -4 dB -5 dB -6 dB -7 dB -8 dB -9 dB -10 dB -11 dB -12 dB -13 dB -14 dB -15 dB -16 dB -17 dB -18 dB -19 dB -20 dB -21 dB -22 dB -23 dB -24 dB -25 dB -26 dB -27 dB -28 dB -29 dB -30 dB -31 dB
When (Trimmer level)+(Volume level) is less than -87dB, attenuation level is set to -87dB.
MITSUBISHI ELECTRIC ( 13 / 22 )
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MITSUBISHI SOUND PROCESSORS
Dolby Pro Logic Surround Decoder
M62464AFP
l. Chip Address D14 L Others D15 H Data Read Enable Unable
Relation between mode setting and switch condition
Mode Setting
(D0=L,D1=L D2=L)
Pro Logic Mode
Space Surround Mode (D0=L,D1=L,D2=H)
Switch Condition
LRC- SL- SR- DI- DO- BNR*1 *1 *2 *3
D7
*3
D8 D10 D11 D12 D13 SW SW SW SW SW SW SW SW
*2 *2 *3 *1
Bypass
L H
X
L H
X L H X
L H X X
*3
L 1 H X
*1
1 1 ON 2 3
*4
1 2
1 1 2 3
2 1 3 1 1 3
*3
Dolby Pro Logic Surround Space Surround
L H X
X
*4
X
*2
3 ON 1
*4 *1
1
*1
1
*2
*2
L H
L H X X
X L H X X
L H X X
L
3
3
ON
1 2
OFF OFF
1 2 3 3
1 1 2
2 1
H2 X X 1 4
2 1 4
3 4 4 2 2 3 3
Echo Mute
X X
X X
3 3
X: L or H
At Bypass or Space Surround Mode, the condition of SL-SW,SR-SW,DI-SW and BNR-SW depend on D7,D10,D11,D12 and D13. SL-SW,SR-SW : depend on D13 ------> *1 DI-SW : depend on D10 and D11----->*2 BNR-SW : depend on D7 and D12------*3 At Space Surround Mode, the condition of L-SW and R-SW depend on D8.------>*4
MITSUBISHI ELECTRIC ( 14 / 22 )
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MITSUBISHI SOUND PROCESSORS
Dolby Pro Logic Surround Decoder
M62464AFP
(4)Data Timing
t1,t2
VDD=5V
2.7V
DATA
0.7V
t6 t1 t4
t7 t2
2.7V
SCK
0.7V
t5 t3 t8 t9
t10
2.7V
REQ
0.7V
t1
t2
Symbol
Name
Signal rise time Signal fall time SCK clock width SCK "H" pulse width SCK "L" pulse width DATA setup time DATA hold time REQ rise hold time REQ "H" pulse width SCK setup time
Min
Typ
Max 0.5 0.5
t1 t2 t3 t4 t5 t6 t7 t8 t9 t10
Units s s s s s s s s s s
2 0.8 0.8 0.8 0.8 1.6 0.8 1.6
MITSUBISHI ELECTRIC ( 15 / 22 )
L-SW
BY-PASS SPACE 1 2
+
1
3 4
Mode Example
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NOISE SEQUENCER
PROLOGIC MUTE
BY-PASS SPACE 2 1
LOUT
LTIN
+/PROLOGIC MUTE
4 3
74
L
2
INPUT AUTOBALANCE
SELECTOR
RTIN
C-SW
75
ADAPTIVE MATRIX
C
WIDE NORMAL PHANTOM OFF
R R-SW CTRIM
SL-SW
1 2 3
CENTER MODE CONTROL
ROUT
CVOL 3 SLVOL
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CVOL OUT
(1)Pro Logic Surround
D/A
LPF A/D
LPF
MITSUBISHI ELECTRIC ( 16 / 22 )
S' Pseudo Stereo
SL SR
2 3 1
SLTRIM1
SR-SW SRVOL
9
SLVOL OUT
SRTRIM2
14
SRVOL OUT
Modified BNR
1
L+R L-R 2
Digital Delay 10Kbit SRAM Logic
F.B.VOL DELAYVOL
1 2
DI-SW
2
1
2 3
3
4
DO-SW BNR-SW
MICIN
20
MCU Interface
MITSUBISHI SOUND PROCESSORS
Dolby Pro Logic Surround Decoder
M62464AFP
41
22
23
24
ECHOOUT
DATA SCK
REQ
L-SW
BY-PASS SPACE 1 2
+
1
4
(2)Space Surround
LOUT
NOISE SEQUENCER
PROLOGIC MUTE
BY-PASS SPACE 2 1 3
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LTIN
+/PROLOGIC MUTE
4 3
74
L
2
INPUT AUTOBALANCE
SELECTOR
RTIN
C-SW
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75
ADAPTIVE MATRIX
C
WIDE NORMAL PHANTOM OFF
R R-SW CTRIM
SL-SW
1 2 3
CENTER MODE CONTROL
ROUT
CVOL 3 SLVOL
CVOL OUT
D/A
LPF A/D
LPF
MITSUBISHI ELECTRIC ( 17 / 22 )
S' Pseudo Stereo
SL SR
2 3 1
SLTRIM1
SR-SW SRVOL
9
SLVOL OUT
SRTRIM2
14
SRVOL OUT
L+R L-R 2
Digital Delay 10Kbit SRAM Logic
F.B.VOL DELAYVOL
1 2
DI-SW
Modified BNR
1 2 3
2
1
3
4
DO-SW BNR-SW
MICIN
20
MCU Interface
MITSUBISHI SOUND PROCESSORS
41
22
23
24
Dolby Pro Logic Surround Decoder
M62464AFP
ECHOOUT
DATA SCK
REQ
(3)Echo
BY-PASS SPACE 2 1
L-SW
1
4
+
NOISE SEQUENCER
PROLOGIC MUTE
BY-PASS 3
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LOUT
LTIN
2
74
+/PROLOGIC MUTE
4 3
L
SPACE
1
2
INPUT AUTOBALANCE
SELECTOR
RTIN
C
C-SW
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75
ADAPTIVE MATRIX
WIDE NORMAL PHANTOM OFF
R R-SW CTRIM
SL-SW
1 2 3
CENTER MODE CONTROL
ROUT
CVOL 3 SLVOL
CVOL OUT
D/A
LPF A/D
LPF
MITSUBISHI ELECTRIC ( 18 / 22 )
S' Pseudo Stereo
SL SR
2 3 1
SLTRIM1
SR-SW SRVOL
9
SLVOL OUT
SRTRIM2
14
SRVOL OUT
L+R L-R 2
Digital Delay 10Kbit SRAM Logic
F.B.VOL DELAYVOL
1 2
DI-SW
Modified BNR
1 2 3
2
1
3
4
DO-SW BNR-SW
MICIN
20
MCU Interface
MITSUBISHI SOUND PROCESSORS
Dolby Pro Logic Surround Decoder
41
22
23
24
M62464AFP
ECHOOUT
DATA SCK
REQ
are su This is Notice r;ametric limits pa some
N a sp Y a I MtIa finAl Recciftictoticohna.nge. P R E L no bje
MITSUBISHI SOUND PROCESSORS
Dolby Pro Logic Surround Decoder
M62464AFP
Level Diagram
(1)Dolby Pro Logic Surround Mode Cch
LTIN RTIN
Signal level Gain INPUT BALANCE ADAPTIVE MATRIX CENTER MODE CONTROL
C-SW
TRIMMER&VOLUME Ladder Buffer
CVOLOUT
2
-3dB +3dB
0dB
-3.2dB -3.2dB 0dB
-3.2dB
0dB
+3.2dB
Vref=4.5V
Vref=2.5V
Vref=3.6V
Sch
LTIN RTIN
Signal level Gain INPUT BALANCE ADAPTIVE MATRIX
S' DI-SW
1
DIGITAL DELAY
DO-SW
BNR-SW SL-SW
BNR
1 1 2
TRIMMER&VOLUME Ladder Buffer
SLVOL OUT
-3dB +3dB
0dB
-6.8dB -3.2dB 0dB
-6.8dB 0dB
-6.8dB
0dB
-3.2dB 0dB
-3.2dB
0dB
+6.8dB
-3.2dB
+3.2dB
Vref=4.5V
Vref=2.5V
Vref=4.5V Vref=2.5V
Vref=3.6V
Lch,Rch
LTIN RTIN
INPUT BALANCE ADAPTIVE MATRIX CENTER MODE CONTROL
LOUT ROUT
Signal level
0dB
Vref=4.5V
Signal level : 0dB=300mVrms(typ.) MITSUBISHI ELECTRIC ( 19 / 22 )
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N a sp Y a I MtIa finAl Recciftictoticohna.nge. P R E L no bje
MITSUBISHI SOUND PROCESSORS
Dolby Pro Logic Surround Decoder
M62464AFP
(2)Space Surround Mode Delay Signal
LIN RIN
Signal level
DI-SW L-R (L+R)/2 2 3
DIGITAL DELAY
DELA Y VOL
DO-SW 1
BNR
BNR-SW 1 2
mixing with L/R
0dB
-6.8dB -6.8dB 0dB
-6.8dB 0dB
-6.8dB
0dB +6.8dB
Gain
Vref=4.5V
Vref=2.5V
Vref=4.5V
(3)Echo Mode
DI-SW
DO-SW
MICIN
Signal level
4
DIGITAL DELAY 0dB 0dB
DELAY VOL
ECHOOUT 2
0dB
Vref=4.5V
Vref=2.5V
Vref=4.5V
Signal level : 0dB=300mVrms(typ.)
Notice
Relation AVcc and DVDD at power supply Digital VDD must be supplied between 0.7 and 1.3 seconds after analog Vcc is supplied.
AVcc (AVcc>DVDD) DVDD
Internal reset signal
automatic reset cancel 0.7 to 1.3 seconds
MITSUBISHI ELECTRIC ( 20 / 22 )
are su This is Notice r;ametric limits pa some
N a sp Y a I MtIa finAl Recciftictoticohna.nge. P R E L no bje
MITSUBISHI SOUND PROCESSORS
Dolby Pro Logic Surround Decoder
M62464AFP
APPLICATION EXAMPLE
C38 1000p C37 4700p 40 39 37 35 33 31 30 38 34 32 36 C35 0.1 C34 0.22 C33 0.22 C31 0.1 C29 1000p C28 4700p 28 C26 1
29
27
26
DELAY VOL 2 1
41
LPF
D/A
A/D
LPF
MCU interface
REQ
24
C41 1 C42 1 C43 5600p 43
DVss
25
ECHOOUT
DATA
DO-SW
MODIFIED B-TYPE NR DECODER
CLK
DVdd
LOGIC
22
MCU
SCK
42
23
44
21
C44 0.047 R45 330k 45
C21 0.1 C20 1
DVDD +5V
20
MICIN
46
C46 0.22
DUAL-TIME CONSTANT AND THRESHOLD SWITCHES
47
C47 0.22 48
DI-SW
1 2 3 L+R 2 4
C48 4.7 49
L-R
C49 4.7 50 C50 0.22 51 C51 0.22 52
15
BNR-SW
1 3 2
16
17
18
F.B. VOL
19 C18 0.1
C45 0.68
AGND
10Kbit SRAM
VOL
SRVOLOU T
C14 10 C12 10
TRIM
SR-SW LOG DIFFERENCE AMPLIFIERS
3
CENTER MODE CONTROL
53
C R 2 L
1 SL
54
1
11
C53 0.047 C54 0.047 55
3
12
2
SR
C52 0.1
13
14
VOL
L
R
C
S'
10
SL-SW
TRIM
C10 10
C55 0.1 56 COMBINING NETWORKS C56 0.1 57
SLVOLOUT
9 C9 10 C8 0.1 C7 0.1 8
C
FULL WAVE RECTIFIER
R-SW
3 PSEUDO SURROUND 4
C57 0.022 C58 0.022 C59 0.1
C60 RA60 150k C64 0.01 680p R60 47k C61 0.01
VCA
58
59
2 1
SERVO
AUTO BALANCE
60
VCA
L-SW
TRIM
5
6
3
4
7
2
1
BPF
L+R L-R
C-SW VOL
C4 10 4
R61 75k C62 680p RA62 150k R62 47k C65 0.01 C63 0.01
61
CVOLOUT
3 C3 10
R
62
BPF
SELECTOR
2
63
R63 75k
C2 10
L NOISE SEQUENCER AVcc VREF IREF 22k 22k
ROUT LOUT
64
1 C1 10
65
67
68
70
74
77
69
71
73
76
75
66
C70 220 C68 4.7 C66 R67 C67 47 100k 6800p
R71 100k C69 100
72
C74 10
C75 10
78
79
80
AVcc +9V
Units Resistance : Capacitance : F
LTIN
RTIN
MITSUBISHI ELECTRIC ( 21 / 22 )
are su This is Notice r;ametric limits pa some
N a sp Y a I MtIa finAl Recciftictoticohna.nge. P R E L no bje
MITSUBISHI SOUND PROCESSORS
Dolby Pro Logic Surround Decoder
M62464AFP
EXTERNAL PARTS LIST
Parts No. C1 C2 C3 C4 C7 C8 C9 C10 C12 C14 C18 C20 C21 C26 C28 C29 C31 C33 C34 C35 C37 C38 C41 C42 C43 C44 C45 C46 C47 C48 C49 C50 C51 C52 C53 C54 C55 C56 Values 10 10 10 10 0.1 0.1 10 10 10 10 0.1 1.0 0.1 1.0 4700 1000 0.1 0.22 0.22 0.1 4700 1000 1.0 1.0 5600 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 Unit F F F F F F F F F F F F F F pF pF F F F F pF pF F F pF F F F F F F F F F F F F F Tol. Parts No. C57 C58 C59 C60 C61 C62 C63 C64 C65 C66 C67 C68 C69 C70 C74 C75 Values 0.022 0.022 0.1 680 0.01 680 0.01 0.01 0.01 47 6800 4.7 100 220 10 10 Unit F F F pF F pF F F F F pF F F F F F Tol. 5% 5% 20% 5% 5% 5% 5% 5% 5% 5% 10%
10%
5% 5% 5% 5% 5% 5% 5% 5%
5% 5% 10% 10% 10% 20% 20% 10% 10% 20% 5% 5% 20% 20%
R45 R60 RA60 R61 R62 RA62 R63 R67 R71
330 47 150 75 47 150 75 100 100
k k k k k k k k k
10% 5% 5% 5% 5% 5% 5% 1% 5%
MITSUBISHI ELECTRIC ( 24 / 22 )

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