Maintenance/ Discontinued

Transcription

1 For Audio Equipment MN662747RPH Signal Processing LSI for CD Players Overview The MN662747RPH 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 Traverse speed detection function (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 Digital attenuation ( 12 db) Audio data peak level detection function Digital audio interface (EIAJ format) Audio data serial interface for input and output (Spindle Motor Servo) CLV digital servo Switchable servo gain (Audio circuits) Digital filter using 8-fold oversampling Built-in D/A converter (1-bit D/A converter) Built-in differential operational amplifier (secondary low pass filter) (Other) Built-in playback pitch control function (normal speed only) (±13%) Support for quadruple-speed playback (digital servo and signal processing block only) Built-in support for jitter-free disc rotation synchronization playback Oscillator shutdown mode Power management mode Operating voltage 4.5 to 5.5 V Applications CD players includes following four Product lifecycle stage.

2 MN662747RPH For Audio Equipment Pin Assignment V DD X2 X1 V SS SBCK SUBC VCOF2 PCK EFM AV SS2 AV DD2 VCOF PLLF DSLF DRF I REF ARF WVEL PLAY PLLF2 BYTCK/TVSTOP CLDCK FCLK IPFLAG FLAG CLVS CRC DEMPH FLAG6/RESY IOSEL TEST AV DD1 OUTL AV SS1 OUTR RSEL CSEL PSEL MSEL SSEL BCLK LRCK SRDATA DV DD1 DV SS1 TX MCLK MDATA MLD SENSE FLOCK TLOCK BLKCK SQCK SUBQ DMUTE STAT RST SMCK PMCK (TOP VIEW) QFS080-P LDON BDO RFDET TRCRS OFT VDET RFENV TE FE TBAL FBAL V REF FOD TRD KICK ECS ECM PC TVD TRV includes following four Product lifecycle stage.

3 For Audio Equipment MN662747RPH Block Diagram LRCKIN/MSEL BCLKIN/SSEL SRDATEIN/PSEL 70 IOSEL 66 CLVS 67 CRC 13 BLKCK 62 CLDCK 56 SBCK 55 SUBC 68 DEMPH FLAG6/RESY SSEL 14 SQCK 15 SUBQ 53 PCK 52 EFM 48 PLLF 41 PLLF2 47 DSLF 45 I REF 46 DRF 44 ARF 76 RSEL 78 PSEL MLD 9 MCLK 7 MDATA 8 CK384/EFM 54 VCOF2 VCOF 49 SMCK FCLK PMCK CSEL MSEL X2 X1 STAT RST TEST FE 33 TE 34 RFENV TRCRS VDET BDO RFDET DSL PLL VCO 38 MICROCOMPUTER INTERFACE OFT SERVO CPU 36 OUTPUT PORT + + AV SS2 AV DD SUBCODE BUFFER DIGITAL DEEMPHASIS VCO TIMING GENERATOR PITCH CONTROL EFM DEMODULATION SYNC INTERPOLATION SUBCODE DEMODULATION 8 TIMES OVER SAMPLING DIGITAL FILTER 1 BIT DAC LOGICS 16K SRAM CIRC ERROR CORRECTION DEINTERLEAVE PWM (R) PWM (L) DIGITAL AUDIO INTERFACE CLV SERVO INTERPOLATION SOFT MUTING DIGITAL ATTENUATION PEAK DETECT AUTO CUE D/A CONVERTER FLAG 64 IPFLAG 6 TX 24 ECM 23 PC A/D CONVERTER INPUT PORT SERVO TIMING GENERATOR OUTR OUTL AV SS1 AV DD1 2 LRCK 3 SRDATA 1 BCLK 16 DMUTE 21 TRV 26 KICK 29 VREF 61 BYTCK/TRVSTOP 25 ECS 22 TVD 27 TRD 28 FOD 31 TBAL 30 FBAL 12 TLOCK 11 FLOCK 42 PLAY 40 LDON 43 WVEL 10 SENSE includes following four Product lifecycle stage. V DD V SS DV DD1 DV SS1

4 MN662747RPH For Audio Equipment Pin Descriptions Pin No. Symbol I/O Function Description 1 BCLK O SRDATA bit clock output. 2 LRCK O Left/right channel discrimination signal output. 3 SRDATA O Serial data output. 4 DV DD1 I Power supply for digital circuits. 5 DV SS1 I Ground for digital circuits. 6 TX O Digital audio interface output signal. 7 MCLK I Microcomputer command clock input. (Data is latched at rising edge.) 8 MDATA I Microcomputer command data input. 9 MLD I Microcomputer command load signal input. "L" level: load. 10 SENSE O Sense signal output. (OFT, FESL, NACEND, NAJEND, SFG, and NWTEND) 11 FLOCK O During default operation, focus servo convergence signal. or DIRBK "L" level: convergence. During command execution, direction detection output for external track counter. 12 TLOCK O During default operation, tracking servo convergence signal. "L" level: or OTCFR convergence. During command execution, traverse speed control output. 13 BLKCK O Subcode block clock signal (f BLKCK =75 Hz) 14 SQCK I External clock input for subcode Q register 15 SUBQ O Subcode Q data output 16 DMUTE I Muting input. (Effective only for an output bit rate of 64 f s ) "H" level: muting. 17 STAT O Status signal. (CRC, CLVS, TTSTOP, JCLVS, SQOK, FLAG6, SENSE, FLOCK, TLOCK, rpm data, and FCLV) 18 RST I Reset input. "L" level: reset. 19 SMCK O If MSEL is "H" level, MHz clock signal output. If MSEL is "L" level, MHz clock signal output 20 PMCK O 88.2 khz clock signal output. 21 TRV O Traverse forced feed output. (tristate) 22 TVD O Traverse drive output. 23 PC O Spindle motor ON signal. "L" level: ON (default). 24 ECM O Spindle motor drive signal (forced mode output). (tristate) 25 ECS O Spindle motor drive signal (servo error signal output). (tristate) 26 KICK O Kick pulse output. (tristate) includes following four Product lifecycle stage. 27 TRD O Tracking drive output. 28 FOD O Focus drive output. 29 V REF I Reference voltage for DA output (TVD, ECS, TRD, FOD, FBAL, and TBAL). 30 FBAL O Focus balance adjustment output. 31 TBAL O Tracking balance adjustment output. 32 FE I Focus error signal input. (analog input)

5 For Audio Equipment MN662747RPH Pin Descriptions (continued) Pin No. Symbol I/O Function Description 33 TE I Tracking error signal input. (analog input) 34 RFENV I RF envelope signal input. (analog input) 35 VDET I Vibration detection signal input. "H" level: vibration detected. 36 OFT I Offtrack signal input. "H" level: offtrack. 37 TRCRS I Track cross signal input. (analog input) 38 RFDET I RF detection signal input. "L" level: detected. 39 BDO I Dropout signal input. "H" level: dropout. 40 LDON O Laser ON signal output. "H" level: ON. 41 PLLF2 I/O PLL loop filter characteristic selection pin. 42 PLAY O Play signal output. "H" level: play. 43 WVEL O Double-speed status signal output. "H" level: double-speed. 44 ARF I RF signal input. 45 I REF I Reference current input pin. 46 DRF I DSL bias pin. 47 DSLF I/O DSL loop filter pin. 48 PLLF I/O PLL loop filter pin. 49 VCOF I/O VCO loop filter pin. 50 AV DD2 I Power supply for analog circuits (DSL, PLL, D/A converter output, and A/D converter). 51 AV SS2 I Ground for analog circuits (DSL, PLL, D/A converter output, and A/D converter). 52 EFM O EFM signal output. EFM output when IOSEL is "H" level. or CK384 Crystal oscillator MHz clock output when I OSEL is "L" level. 384 f s output from signal processing block. (During variable-pitch operation, this is the VCO clock.) Commands permit switching among the above three outputs. 53 PCK O PLL derived clock or DSL balance output. f PCK = MHz. or DSLB 54 VCOF2 I/O VCO loop filter pin. 55 SUBC O Subcode serial output. 56 SBCK I Serial clock input for subcode serial output. 57 V SS I Ground for oscillator circuit. 58 X1 I Crystal oscillator circuit input/output pins. f= MHz, MHz. 59 X2 O Crystal oscillator circuit output/output pins. f= MHz, MHz. 60 V DD I Oscillator circuit power supply. 61 BYTCK or When IOSEL is "H" level, byte clock signal output. O TRVSTOP When IOSEL is "L" level, traverse stop signal output. "H" level: stop mode. 62 CLDCK O Subcode frame clock signal output pin. (f CLDCK =7.35 khz) 63 FCLK O Crystal frame clock signal output. (f FCLK =7.35 khz) 64 IPFLAG O Interpolation flag signal output. "H" level: interpolation. 65 FLAG O Flag signal output. includes following four Product lifecycle stage.

6 MN662747RPH For Audio Equipment Pin Descriptions (continued) Pin No. Symbol I/O Function Description 66 CLVS O Spindle servo phase synchronization signal output. "H" level: CLV. "L" level: rough servo. 67 CRC O During default operation, subcode CRC check result output. "H" level: OK. or TCK "L" level: no good. During command execution, pulse output for external track counter. 68 DEMPH O De-emphasis detection signal output. "H" level: ON. 69 FLAG6 or O When IOSEL is "L" level, FLAG6 output, signal for resetting address of RESY 70 IOSEL I Mode selection pin RAM for error correction de-interleave. "L" level: address reset. When IOSEL is "H" level, RESY output, frame resynchronization signal. "H" level: synchronized. "L" level: out of sync. 71 TEST I Test pin. Keep this at "H" level. 72 AV DD1 I Power supply for analog circuits. (common use for left and right channel audio outputs.) 73 OUTL O Left channel audio output. 74 AV SS1 I Ground for analog circuits. (common use for left and right channel audio outputs.) 75 OUTR O Right channel audio output. 76 RSEL I RF signal polarity selection pin. "H" level: bright level is "H." "L" level: bright level is "L." 77 CSEL I Crystal oscillator frequency specification pin. "H" level: MHz. "L" level: MHz 78 PSEL I When IOSEL is "H" level, test pin. Keep this at "L" level. When IOSEL is "L" level, SRDATA input. 79 MSEL I When IOSEL is "H" level, frequency selection pin for SMCK pin output. "H" level: SMCK= MHz When IOSEL is "L" level, LRCK input. "H" level: left channel data. "L" level: right channel data. SMCK output fixed at MHz. 80 SSEL I When IOSEL is "H" level, SUBQ pin output mode selection pin. "H" level: buffered subcode Q mode. "L" level: CLDCK synchronization mode. When IOSEL is "L" level, BCKL input. Buffered subcode Q mode. includes following four Product lifecycle stage.

7 For Audio Equipment MN662747RPH Package Dimensions (Unit: mm) QFS080-P ± ± SEATING PLANE ± ± ± ± ± ± ±0.1 includes following four Product lifecycle stage. 0 to 10

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