ELECTRIC
MITSUBISHI
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
( / )
20
M62461FP
"Super Single Chip " Surround Processor
with Dolby Pro Logic Decoder
MITSUBISHI SOUND PROCESSORS
C-62461-82B
1
DIGITAL SPACE SURROUND system:Disco,Hall,Live mode etc.
Echo effect for KARAOKE (Delay time:200ms)
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.
Includes completed functions for Dolby Pro Logic Surround System
<ANALOG> ·Automatic Input Balance
·Noise Sequencer
·Adaptive Active Matrix
·Center Mode Control
·Modified B Type Noise Reduction
<DIGITAL> ·Digital Time Delay
FEATURES
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.
ANALOG PROCESSOR
DIGITAL
TIME DELAY
MCU I/F
SCL
SDA
SUPER ONE CHIP SURROUND PROCESSOR
16Kbit
RAM
MIC
SYSTEM CONFIGURATION
DOLBY PRO LOGIC DECODER
Lin
Rin
Lout
Rout
Cout
Sout
Dout
DESCRIPTION
Outline 80P6N
0.8mm pitch QFP
(20.0mmx4.0mmx2.8mm)
Outline
(Note)
IIC Bus Control
IIC Bus
RECOMMENDED OPERATING CONDITIONS
Supply voltage range Vcc=8~10V,Vdd=4.5~5.5V
ELECTRIC
MITSUBISHI
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
( / )
20
M62461FP
"Super Single Chip " Surround Processor
with Dolby Pro Logic Decoder
MITSUBISHI SOUND PROCESSORS
C-62461-82B
LPF1 IN1
LPF1 IN2
LPF1 OUT
AD INT IN
AD INT OUT
AD CONT
DA CONT
DA INT IN
DA INT OUT
LPF2 IN1
LPF2 IN2
LPF2 OUT
DELAY IN
VOL OUT
RLC6
LLI
LBPF
RLI
RBPF
LT
RT
LIN
RIN
HOLDC
AVcc
NGC3
NGC2
NGC1
LOUT
ROUT
FBIN SU
FBIN EC
DBIN
LPIN
DBC1
DBC2
DBC3
PSC3
PSC6
PSC2
PSC5
PSC1
PSC4
RLC5
RLC2
RLC1
RLC4
RLC7
RLC3
RLC8
DELAY SIG IN
CT
COUT
ST
SOUT
CMC
SMRO
SMRI
AGND
MIC IN
DVdd
SDA
SCL
(N.C.)
XIN
TEST CNT
DVss
AVss
AVdd
MIX OUT
XOUT
DELAY SIG OUT
VREFD
LO2
VREFA
VREFG
IREF
S' OUT
LO1
LO3
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
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
M62461FP
2
XXXXXX
(N.C.)ÅFNO CONNECTION
PIN CONFIGURATION
ELECTRIC
MITSUBISHI
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
( / )
20
M62461FP
"Super Single Chip " Surround Processor
with Dolby Pro Logic Decoder
MITSUBISHI SOUND PROCESSORS
C-62461-82B
3
BLOCK DIAGRAM
LPF1 IN1
LPF1 IN2
LPF1 OUT
AD INT IN
AD INT OUT
AD CONT
DA CONT
DA INT IN
DA INT OUT
LPF2 IN1
LPF2 IN2
LPF2 OUT
DELAY IN
VOL OUT
RLC6
LLI
LBPF
RLI
RBPF
LT
RT
LIN
RIN
HOLDC
AVcc
NGC3
NGC2
NGC1
LOUT
ROUT
FBIN SU
FBIN EC
DBIN
LPIN
DBC1
DBC2
DBC3
PSC3
PSC6
PSC2
PSC5
PSC1
PSC4
RLC5
RLC2
RLC1
RLC4
RLC7
RLC3
RLC8
DELAY SIG IN
CT
COUT
ST
SOUT
CMC
SMRO
SMRI
AGND
MIC IN
DVdd
XIN
TEST CNT
DVss
AVss
AVdd
MIX OUT
XOUT
DELAY SIG OUT
VREFD
LO2
VREFA
VREFG
IREF
S' OUT
LO1
LO3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
VCA
SERVO
AUTO
BALANCE
SELECTOR
AVcc
NOISE
SEQUENCER
FULL WAVE
RECTIFIER
L+R L-R
LOG
DIFFERENCE
AMPLIFIERS
DUAL-TIME CONSTANT
AND THRESHOLD SWITCHES
CENTER MODE
CONTROL
CT
SELECTOR3
MODIFIED
NR DECODER
B-TYPE
+/-
ST
S
C
R
L
A/D
D/A
LOGIC
16kSRAM
LPF
VOL
VOL
VOL
LPF
DVdd
CLK
AGND
S'
S'
L
C
R
DVss
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
- +
-
+
BPF
BPF
L
R
C
+
+
-
-
VCA
COMBINNING
NETWORKS
AVss
AVdd
VREFD
ATT
SELECTOR2
IREF
VREF
SELECTOR1
+3.2dB
MOS
SFB
MIX
MIC
+9.2dB
L+R
2
L-R
2
-3.2dB
SU
EC
VREFA
TEST
CNT
ATT
-6.0dB
SDA
SCL
(N.C.)
I C bus interface
2
(N.C.)ÅFNO CONNECTION
ELECTRIC
MITSUBISHI
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
( / )
20
M62461FP
"Super Single Chip " Surround Processor
with Dolby Pro Logic Decoder
MITSUBISHI SOUND PROCESSORS
C-62461-82B
4
Discription of pin
2
3
LOUT
ROUT
Lch output
Rch output
4V
Direct output R-/L-
channel when the
operation mode is
BY-PASS.
When the mode is 4channel,
they output Dolby Pro logic
R-/L- channel signals.
2
3
4
5
CT
COUT
Cch output
Cch output
4V
COUT is output from
C.Trimmer.
4
5
6
ST
Sch output
4V
6
7
7
SOUT
Sch output
9
10
SMRO
SMRI
amplifier
output
4V
This is a amplifier to
control mixed level
of surround output
with external resistance.
9
10
amplifier
input
No output any
signals when the operation
mode is center mode is OFF,
or set to PHANTOM.
This pin outputs surround
signals. Output is selected
from BNRout, Dout. No
output signal when the
operation mode is 3
STEREO/MUTE.
SOUT is output from
S.Trimmer.
No.
Symbol
Funtion
Equivalent circuit
Voltage
Discription of pin
ELECTRIC
MITSUBISHI
PRELIMINARY
Notice ; This is not a final specification.
some parametric limits are subject to change.
( / )
20
M62461FP
"Super Single Chip " Surround Processor
with Dolby Pro Logic Decoder
MITSUBISHI SOUND PROCESSORS
C-62461-82B
15
16
17
SDA
SCL
N.C.
"DATA"
input
input I2C bus data
from MCU.
14
TEST CNT
TEST
control
Fixed to GND
18
19
20
LO1
LO2
LO3
18
19
20
21
22
XIN
XOUT
Osillator input
Osillator output
connect a 4MHz
ceramic resonator
26
VREFD
reference output
1/2 Vcc output.
Connect a filter
capacitor.
12
MIC IN
MIC input
4V
Microphone input
with ECHO MODE
12
buffer
buffer
buffer
21
22
26
2.5V
0
14
16
15
"CLOCK"
input
no connection
Open collector output
pin (NPN Tr)
port output
No.
Symbol
Funtion
Equivalent circuit
Voltage
Discription of pin
ACK
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