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. 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 Digital audio interface (EIAJ format) Audio data serial interface (Spindle motor servo) CLV digital servo (Audio circuits) 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) (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 70 RST2 Block Diagram PWM (R) 8 TIMES OVER SAMPLING DIGITAL FILTER DIGITAL DEEMPHASIS 1 BIT DAC LOGICS PWM (L) 74 AVSS1 72 AVDD1 DIGITAL AUDIO INTERFACE 24 23 36 OFT 38 SERVO TIMING GENERATOR RFDET 39 BDO 35 VDET TRCRS 37 INPUT PORT OUTPUT PORT SERVO CPU D/A CONVERTER INTERPOLATION SOFT MUTING DIGITAL ATTENUATION PEAK DETECT AUTO CUE MICROCOMPUTER INTERFACE 34 RFENV 33 32 FE TE VDD VSS DVDD1 DVSS1 RST TEST 60 57 4 5 18 71 A/D CONVERTER 6 CLV SERVO CIRC ERROR CORRECTION 16K SRAM DEINTERLEAVE EFM DEMODULATION SYNC INTERPOLATION SUBCODE DEMODULATION DSL•PLL VCO SUBCODE BUFFER 65 FLAG 64 IPFLAG TIMING GENERATOR PITCH CONTROL VCO 9 MLD 7 MCLK 8 MDATA 49 VCOF 61 BYTCK 19 SMCK 63 FCLK 20 PMCK 77 CSEL 79 MSEL 59 X2 58 X1 17 STAT + 53 52 48 47 45 46 44 76 78 OUTL – 80 SSEL 14 SQCK 15 SUBQ PCK EFM PLLF DSLF IREF DRF ARF RSEL PSEL 73 66 67 13 62 56 55 68 69 OUTR + CLVS CRC BLKCK CLDCK SBCK SUBC DEMPH RESY 75 – 51 AVSS2 50 AVDD2 TX ECM PC 2 LRCK 3 SRDATA 1 BCLK 16 DMUTE 21 TRV 26 KICK 29 V 25 REF ECS 22 TVD 27 TRD 28 FOD 31 TBAL 30 FBAL 41 TES 12 TLOCK 11 FLOCK 42 PLAY 40 LDON 43 WVEL 10 SENSE For Audio Equipment MN662710RA 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 +0.10 -0.05 +0.10 0.3 -0.05 2.1±0.3 0.65 2.0±0.2 20 0.1±0.1 1 0.55±0.1