Panasonic MN662710RA Datasheet
For Audio Equipment
MN662710RA
Signal Processing LSI for CD Players
Overview
The MN662710RA is a CD signal processing LSI that,
on a single chip, combines an optics servo for the CD
player (focus, tracking, and traverse servos), digital signal
processing (EFM demodulation and error correction),
digital servo processing for the spindle motor, digital
filter, and D/A converter, so thus covers all signal
processing functions from the head's RF amplifier onward.
The MN662710RA is also usable as a CD signal
processing LSI for double-speed CD-ROM playback. Do
not, however, use the audio equipment D/A converter
during double-speed playback.
(Spindle motor servo)
(Audio circuits)
Digital audio interface (EIAJ format)
Audio data serial interface
CLV digital servo
Operation guaranteed only for normal playback speed
Digital filter using 8-fold oversampling
Built-in D/A converter (1-bit D/A converter)
Built-in differential operational amplifier (±PWM output)
Features
(Optics servo)
Focus, tracking, and traverse servos
Automatic adjustment functions for FO/TR gain, FO/
TR offset, and FO/TR balance
Built-in D/A converter for drive voltage output
Built-in dropout countermeasures
Anti-shock functions
Built-in track cross counter
Support for both linear motor and screw-based traverse
mechanisms
Support for 3- and 1-beam systems
(Digital signal processing)
Playback switchable between double-speed and normal
speed
Built-in DSL and PLL
Frame synchronization detection, holding, and insertion
Subcode data processing
Q data CRC check
Built-in Q data register
CIRC error detection and correction
C1 decoder: duplex error correction
C2 decoder: triplex error correction
Built-in 16-K bits of RAM for de-interleaving
Audio data interpolation
Average, hold of previous values
Soft muting
Digital attenuation (256 levels)
Software attenuation (256 levels)
Audio data peak level detection function
Auto cue detection function
(Other)
Built-in playback pitch control function (normal speed
only) (±13%)
Operating voltage 4.5 to 5.5V
Applications
CD players
MN662710RA For Audio Equipment
Block Diagram
RST2
AV
SS2
AV
DD2
CLVS
CRC
BLKCK
CLDCK
SBCK
SUBC
DEMPH
RESY
SSEL
SQCK
SUBQ
PCK
EFM
PLLF
DSLF
I
REF
DRF
ARF
RSEL
PSEL
MLD
MCLK
MDATA
VCOF
BYTCK
SMCK
FCLK
PMCK
CSEL
MSEL
X2
X1
STAT
51
50
66
67
13
62
56
55
68
69
80
14
15
BUFFER
SUBCODE
53
52
48
47
45
46
44
76
DSL•PLL VCO
78
9
7
8
49
61
19
63
20
77
79
59
58
TIMING GENERATOR
PITCH CONTROL
17
70
DIGITAL
DEEMPHASIS
8 TIMES
OVER SAMPLING
DIGITAL FILTER
EFM DEMODULATION
SYNC INTERPOLATION
SUBCODE DEMODULATION
LOGICS
1 BIT DAC
16K
SRAM
CIRC ERROR CORRECTION
DEINTERLEAVE
VCO
INTERFACE
MICROCOMPUTER
A/D CONVERTER INPUT PORT
)
R
(
PWM
)
L
(
PWM
DIGITAL
AUDIO
INTERFACE
CLV
SERVO
INTERPOLATION
SOFT MUTING
DIGITAL
ATTENUATION
PEAK DETECT
AUTO CUE
SERVO CPU
–
+
–
+
D/A
OUTPUT
SERVO
TIMING GENERATOR
75
73
74
72
65
64
6
24
23
2
3
1
16
21
26
29
25
22
27
28
31
CONVERTER
30
41
12
11
42
PORT
40
43
10
OUTR
OUTL
AV
SS1
AV
DD1
FLAG
IPFLAG
TX
ECM
PC
LRCK
SRDATA
BCLK
DMUTE
TRV
KICK
V
REF
ECS
TVD
TRD
FOD
TBAL
FBAL
TES
TLOCK
FLOCK
PLAY
LDON
WVEL
SENSE
60574518
SS
DD
V
SS1
DD1
V
DV
DV
71
RST
TEST
32
FE
33TE34
RFENV
37
TRCRS
35
VDET
39
BDO
38
RFDET
36
OFT
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