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CS4231A-KQ Fiches technique(PDF) 1 Page - List of Unclassifed Manufacturers |
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1 / 76 page Features • Windows Sound SystemTM Compatible Codec • ADPCM Compression/Decompression • Extensive Software Support • MPC Level 2 Compatible Mixer • Dual DMA Registers support Full Duplex Operation • On-Chip FIFOs for higher performance • Selectable Serial Audio Data Port • Pin Compatible with CS4231/CS4248 General Description The CS4231A includes stereo 16-bit audio converters and complete on-chip filtering for record and playback of 16-bit audio data. In addition, analog mixing and programmable gain and attenuation are included to provide a complete audio subsystem. A selectable se- rial port can pass audio data to and from DSPs or ASICs. Crystal-developed high-performance software drivers for various operating systems are available that support all the CS4231A features including full duplex transfers. The CS4231A is a pin compatible upgrade to the CS4231 and CS4248. ORDERING INFORMATION: CS4231A-KL 0 to 70 °C 68-pin PLCC CS4231A-KQ 0 to 70 °C 100-pin TQFP SEPT ’94 DS139PP2 1 Crystal Semiconductor Corporation P.O. Box 17847, Austin, TX 78760 (512) 445-7222 Fax: (512) 445-7581 Parallel Interface, Multimedia Audio Codec Semiconductor Corporation CS4231A This document contains information for a new product. Crystal Semiconductor reserves the right to modify this product without notice. Preliminary Product Information Mute Gain Gain Mux LMIC RMIC LLINE RLINE LAUX1 RAUX1 LOUT ROUT RAUX2 LAUX2 Mute AGND1 AGND2 20dB Gain VREF VREFI VREF XTAL2I XTAL2O Oscillators LFILT RFILT D<7:0> A<1:0> CS WR PDRQ CDRQ PDAK CDAK 8 2 IRQ DBDIR DBEN XCTL1 XCTL0 Parallel Bus Interface PDWN Mute MIN MOUT Linear µ-law A-law ADPCM Linear µ-law A-law ADPCM DGND3/4/7/8 DGND1 DGND2 XTAL1I XTAL1O VD1 VD2 FIFO 16 Samples VD3 VD4 16 Bit Timer VA1 VA2 16-bit A/D 16-bit A/D Mix Gain Mix Gain Mix Gain Mix Gain 16-bit D/A 16-bit D/A Optional Dither Loopback Digital Attenuation RD FIFO 16 Samples SDOUT SDIN SCLK FSYNC I4 I5 I3 I2 I26 I8 I18 I19 I26 I1 I0 I0 I1 I0 I1 I13 I10 I8 I8 or I28 I20,I21 I 16 I6 I7 TEST Audio Data Serial Port I16 Copyright © Crystal Semiconductor Corporation 1994 (All Rights Reserved) |
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