MN662741RH Datasheet | Panasonic

For Audio Equipment Signal Processing LSI for CD Players Overview The MN662741RH is a CD signal processing LSI that, on a single chip, bines 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) (Other) Built-in playback pitch control function ( ±13%) Operating voltage 4.0 to 5.5V 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 use in 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 Applications CD Players Block Diagram 51 AVSS2 50 AVDD2 79 LRCKIN/MSEL BCLKIN/SSEL 80 78 SRDATEIN/PSEL 70 66 67 13 62 56 55 68 69 CIRC ERROR CORRECTION 16K SRAM DEINTERLEAVE For Audio Equipment 8 TIMES OVER...