Panasonic MN662740 Signal processing lsi for cd player Datasheet

For Audio Equipment
MN662740RE
Signal Processing LSI for CD Players
Overview
The MN662740RE 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.
(Spindle motor servo)
CLV digital servo
(Audio circuits)
Digital filter using 8-fold oversampling
Built-in D/A converter (1-bit D/A converter)
Built-in differential operational amplifier (2nd order
low pass filter)
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)
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
Four-sample 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
Digital audio interface (EIAJ format)
Audio data serial interface for input and output
(Other)
Built-in playback pitch control function (±13%)
Guaranteed operation for double-speed playback
except for D/A converter output and 4 fs mode serial
output
Operating voltage 3.0 to 5.5V
Applications
CD Players
MN662740RE
For Audio Equipment
Block Diagram
PWM
(R)
1 BIT DAC
LOGICS
PWM
(L)
74
AVSS1
72
AVDD1
DIGITAL
AUDIO
INTERFACE
6
24
CLV
SERVO
CIRC ERROR CORRECTION 16K
SRAM
DEINTERLEAVE
23
D/A
CONVERTER
INTERPOLATION
SOFT MUTING
DIGITAL
ATTENUATION
PEAK DETECT
AUTO CUE
EFM DEMODULATION
SYNC INTERPOLATION
SUBCODE DEMODULATION
SUBCODE
BUFFER
VCO
OUTPUT
PORT
36
38
SERVO
TIMING GENERATOR
RFDET
39
BDO
35
VDET
37
INPUT PORT
TRCRS
32
FE
33
TE
34
RFENV
A/D CONVERTER
60
57
4
5
18
71
SERVO CPU
MICROCOMPUTER
INTERFACE
19
63
20
77
79
59
58
17
VDD
VSS
DVDD1
DVSS1
RST
TEST
SMCK
FCLK
PMCK
CSEL
MSEL
X2
X1
STAT
TIMING
GENERATOR
PITCH CONTROL
CK384/EFM
49
VCOF
VCO
9
MLD
7
MCLK
8
MDATA
OFT
53
52
48
47
45
46
44
76
78
OUTL
65
FLAG
64
IPFLAG
DSL•PLL
80
SSEL
14
SQCK
15
SUBQ
PCK
EFM
PLLF
DSLF
IREF
DRF
ARF
RSEL
PSEL
8 TIMES
OVER SAMPLING
DIGITAL FILTER
DIGITAL
DEEMPHASIS
66
67
13
62
56
55
68
69
+
CLVS
CRC
BLKCK
CLDCK
SBCK
SUBC
DEMPH
RESY
FLAG6/RESY
73
–
IOSEL
70
OUTR
+
LRCKIN/MSEL
BCLKIN/SSEL
SRDATEIN/PSEL
75
–
51
AVSS2
50
AVDD2
TX
ECM
PC
2
LRCK
3
SRDATA
1
BCLK
16
DMUTE
21
TRV
26
KICK
29
V
61 REF
BYTCK/TRVSTOP
25
ECS
22
TVD
27
TRD
28
FOD
31
TBAL
30
FBAL
54
TOFS
41
TES
12
TLOCK
11
FLOCK
42
PLAY
40
LDON
43
WVEL
10
SENSE
For Audio Equipment
MN662740RE
Package Dimensions (Unit: mm)
QFS080-P-1414
16.2±0.2
14.0±0.2
60
41
40
80
16.2±0.2
14.0±0.2
0.825
61
21
0.15
SEATING PLANE
0 to 10°
1.1±0.1
0.15
2.1±0.3
+0.10
0.3 -0.05
+0.10
-0.05
0.65
2.0±0.2
20
0.1±0.1
1
0.55±0.1
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