For Audio Equipment MN6626 Signal Processing LSI for CD Players Overview The MN6626 is a CD signal processing LSI that, on a single chip, provides both basic CD player signal processing (EFM demodulation, error correction, and CLV servo) and extra functionality for increasing the versatility and the performance of the CD player. Features Data slice Phase-locked loop for reproducing the bit clock Frame synchronization detection, holding, and insertion EFM demodulation Subcode data processing Subcode Q data CRC check Built-in subcode Q data register Serial interface for subcodes P through W data CIRC error detection and correction C1 decoder: duplex error correction C2 decoder: triplex error correction Built-in 16-K bits of SRAM for de-interleaving Audio data interpolation Average, hold of previous values Soft muting Digital attenuation (256 levels) CLV digital servo for spindle motor Digital audio interface (EIAJ format) Audio data peak level detection function Auto cue detection function Microcomputer serial interface Audio data serial interface Operating voltage 3.4 to 5.5V Appications CD players PC ECS ECM SQCK SUBQ SBCK SSEL CLDCK BLKCK CRC DEMPH SUBC 53 55 54 CLV SERVO TIMING GENERATOR Q-CODE REGISTER 50 58 38 39 37 36 SUBCODE DEMODULATION EFM DATA DEMODULATION CRCC CHECK SYNC INTERPOLATION PROTECTION VCO 48 40 49 60 SYNC DETECTION PHASE COMP. 6 RESY RSEL DO DSL 5 8 61 DSLF 4 3 PLLF DRF ARF FREQ. COMP. OSC RAM ADDRESS GENERATOR 16K SRAM MICROCOMPUTER INTERFACE PEAK DETECTION AUTO-CUE INTERPOLATION SOFT MUTING DIGITAL ATTENUATION CIRC DECODER SYNDROME COMPUTATION DIGITAL AUDIO INTERFACE 9~16 57 22 56 35 41 23 24 25 26 27 28 18 20 19 21 17 TBUS0~7 TEST RST VDD VSS MEMP TX LDG RDG SRDATA SCK LRCK IPFLAG BYTCK FCLK WDCK FLAG MN6626 For Audio Equipment Block Diagram 47 42 45 44 43 34 33 30 29 59 46 52 51 STAT DMUTE MLD MDATA MCLK X2 X1 PMCK XCK MSEL SMCK CLVS TRON For Audio Equipment MN6626 Package Dimensions (Unit: mm) QFP064-P-1414 18.70±0.40 14.00±0.20 48 33 32 0.15 SEATING PLANE (2.35±0.20) +0.10 (1.00) 16 0.35±0.10 0.15 -0.05 0.80 2.60max. 1 2.20±0.20 17 0.10±0.10 64 18.70±0.40 14.00±0.20 (1.00) 49 (1.50±0.20) 0 to 10°