MN88831

For Video Equipment MN88831 PCM Audio Decoder LSI for Satellite Broadcasting Tuners (Includes Built-In Digital Filter and D/A Converter) Overview The MN88831 greatly streamlines set design by incorporating a satellite broadcasting PCM audio decoder, a switched capacitor D/A converter, and analog post filter to a single chip. Pin Assignment PO0/MTO PI2 PI1 DVDD BSTIN BSTRM SYNCF DCDI ECDO P2M NAMODE BPO 36 35 34 33 32 31 30 29 28 27 26 25 Features Built-in digital filter using 8-fold oversampling Built-in tertiary ∆-∑ noise shaping D/A converter Reduced jitter noise through use of switched capacitor configuration Built-in analog post filter Built-in digital de-emphasis circuit Choice of microcomputer interfaces with selector pin: 3-wired serial interface or I2 C interface Muting function supporting following settings Pay-per-view flag detection Error frequency detection Detection of control code bit-7 Built-in general-purpose microcomputer I/O port Bit stream input pin supporting 0.4 VP-P input PO1 PO2 PO3 PO4 PC DVSS IVI IVO XI XO IIN OIN 37 38 39 40 41 42 43 44 45 46 47 48 24 23 22 21 20 19 18 17 16 15 14 13 1 2 3 4 5 6 7 8 9 10 11 12 NTI NLOCK NRES DVSS AVDDR VREF OUTR AVSSR BIAS AVSSL OUTL AVDDL Applications Satellite broadcasting tuners (BS, CS) DVDD PO5 PO6/LIBP IFSEL TES0 TES1 CHV CWO/IFMOD CS/SA CCK/SCL CTLI/SDA DVSS (TOP VIEW) QFP048-P-1212A VREF BPO BIAS MTI IVO MN88831 Block Diagram IVI 25 24 43 Data output control Digital audio interface 44 19...