Panasonic MN66271RA Datasheet
For Audio Equipment
MN66271RA
Signal Processing LSI for Compact Disc Players
Overview
The MN66271RA is a CD signal processing LSI that,
on a single chip, combines optics servos 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.
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
(Spindle motor servo)
CLV digital servo
(Audio circuits)
Digital filter using 8 times oversampling
Built-in D/A converter (1-bit D/A converter)
Built-in differential operational amplifier (±PWM
output)
(Other)
Built-in playback pitch control function (±13%)
Operating voltage 4.5 to 5.5 V
Applications
CD Players
(Digital signal processing)
Built-in DSL and PLL
Frame synchronization detection, holding, and
insertion
Subcode data processing
Subcode Q data CRC check
Built-in subcode 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 use in deinterleaving
Audio data interpolation
Averaging or retention of previous values
Soft muting
Digital attenuation (256 levels)
Software attenuation (256 levels)
Audio data peak level detection function
Automatic cuing detection function
Digital audio interface (EIAJ format)
Audio data serial interface
MN66271RA For Audio Equipment
Pin Assignment
BYTCK
CLDCK
FCLK
IPFLAG
FLAG
CLVS
CRC
DEMPH
RESY
RST2
TEST
AV
DD1
OUTL
AV
SS1
OUTR
RSEL
CSEL
PSEL
MSEL
SSEL
SS2AVDD2
VDDX2X1VSSSBCK
SUBC
PDO
PCK
EFM
AV
VCOF
PLLF
DSLF
60595857565554535251504948474645444342
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
12345678910111213141516171819
SS1
TX
BCLK
LRCK
DD1
DV
DV
SRDATA
MCLK
MDATA
MLD
SENSE
FLOCK
TLOCK
BLKCK
SQCK
REF
DRF
I
SUBQ
DMUTE
ARF
WVEL
RST
STAT
PLAY
TES
41
20
SMCK
PMCK
40
LDON
39
BDO
38
RFDET
37
TRCRS
36
OFT
35
VDET
34
RFENV
33
TE
32
FE
31
TBAL
30
FBAL
29
V
28
27
26
25
24
23
22
21
REF
FOD
TRD
KICK
ECS
ECM
PC
TVD
TRV
(TOP VIEW)
QFS080-P-1414
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