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| W6631CS STEREO AUDIO DAC GENERAL DESCRIPTION The Winbond W6631CS is a low cost stereo audio DAC chip incorporating 8X digital interpolatioin filters, 64X multi-level oversampling delta-sigma modulators, analog low-pass filter and output amplifiers. The operation voltage for this chip can be from 3.0 volt to 5.25 volt. Moreover, the 16 Bit linear input data for DAC consists of two formats, normal format and I 2S format. In addition, the device provides DAC mute, digital 44.1KHz de-emphasis and format conversions can be set up by external pins. * Stereo 16 or 18 Bits Linear PCM Data Input * Two Types Linear PCM Data Input Format: Normal and I 2S Format * Delta-Sigma DAC built-in digital De-emphasis filter, 8X Interpolator, 64X Oversampling Multi-Bit Modulator * Stereo DAC Output built-in Analog Low Pass Filter and Ouput Amplifier with 5K Load * Main Control Functions: 44.1khz De-emphasis, Mute, I 2S or Normal Format * 14 pin SOP Package FEATURES * Power Supply: from +3.0 to +5.25 Volt, typically +5 Volt * Sampling Clock Rate: 32 K, 44.1 K, and 48 K Hz * Master Clock Rate: 384 or 256 times of Sampling Clock rate APPLICATIONS W6631CS is for digital audio applications, such as Audio CD, Video CD, MP-3 player, STB, Multimedia PC and other digital audio/video equipment. FUNCTIONAL BLOCK Data Conversion 8X Digital Interpolation Filter FSLR Serial Data Port (SDP) BCLK DINLR Pin Configuration Delta-Sigma DAC-Filter VOL VAG LPF & Output Amplifier LPF & Output Amplifier 64X Oversampling Multi-Bit R_DAC L_DAC VOR Delta-Sigma Modulator FSLR DINLR BCLK NC VAG VOR GND 1 2 3 4 SOP-14 5 6 7 (TOP VIEW) 14 13 12 11 10 9 8 MCLK FMT DEEMP NC MUTE VOL VDD Power Supply Sequence and Control System GND VDD MCLK MUTE FMT DEEMP NC Winbond Corporate Headquarters Tel : 886-3-5790666 Fax : 886-3-5796139 Taipei Sales Office Tel : 886-2-7190505 Fax : 886-2-7197502 Winbond Electronics North America Corp. Tel : 1-408-9436666 Fax : 1-408-9436668 Winbond Electronics H.K. Ltd. Tel : 852-27513100 Fax : 852-27552064 Apr. 1999 Details are subject to change without notice. All trademarks are property of their respective holders. |
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