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CS4294-JQ Datasheet(PDF) 1 Page - Cirrus Logic |
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CS4294-JQ Datasheet(HTML) 1 Page - Cirrus Logic |
1 / 42 page Preliminary Product Information This document contains information for a new product. Cirrus Logic reserves the right to modify this product without notice. 1 Copyright Cirrus Logic, Inc. 2000 (All Rights Reserved) P.O. Box 17847, Austin, Texas 78760 (512) 445 7222 FAX: (512) 445 7581 http://www.cirrus.com FEATURES n AC ‘97 2.0 compatible n 20-bit quad output and 18-bit dual stereo input codec with fixed 48 kHz sampling rate n Dedicated ADC for enhanced digital docking n Three analog line-level stereo inputs for connec- tion from LINE IN, CD, and AUX n High quality pseudo-differential CD input n Dual stereo line level output with independent 6- bit volume control n 6 General Purpose I/O pins n Meets or exceeds Microsoft's ® PC 98 and PC 99 audio performance requirements n CrystalClear™ Stereo Enhancement DESCRIPTION The CS4294 is an AC ‘97 compatible Audio Codec designed for PC multimedia systems. Using the in- dustry leading CrystalClear™ delta-sigma and mixed signal technology, the CS4294 is ideal for PC 98-compliant desktop, notebook, and enter- tainment PCs, where high-quality audio features are required. The CS4294 offers four channels of D/A and A/D conversion along with analog mixing and stereo enhancement processing. For multi- channel audio systems, the CS4294 can provide four audio channels. The CS4294 provides an en- hanced digital docking mode for portable applications by providing a dedicated ADC capture path from the analog input mixer. ORDERING INFORMATION CS4294-KQ 48-pin TQFP 9x9x1.4mm CS4294-JQ 48-pin TQFP 9x9x1.4mm VOL MUTE MUTE MUTE MUTE VOL VOL VOL +20dB DAC 3D STEREO TO MONO MIXER VOL VOL OUTPUT BUFFER OUTPUT BUFFER MASTER VOLUME ALTERNATE VOLUME MAIN D/A CONVERTERS PCM_OUT PCM OUT PATH STEREO INPUT MIXER STEREO OUTPUT MIXER Σ Σ Σ MIC1 AUX CD LINE Mode Control SYNC SDATA_OUT MUTE VOL ADC INPUT MUX VOL MUTE ADC MAIN ADC GAIN ADC DAC RESET# ALT_LINE_OUT LINE_OUT GPIO BIT_CLK SDATA_IN AC-Link Interface 2 / 2 / 2 / 2 / 2 / 2 / 2 / 6 / 3 / 2 / SoundFusion® Audio/Docking Codec ’97 (AMC’97) CS4294 FEB ‘00 DS326PP4 |
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