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| W6630CR STEREO AUDIO DAC GENERAL DESCRIPTION The W6630CR is a stereo audio DAC chip incorporating 8X digital interpolatioin filters, 64X multi-level oversampling delta-sigma modulators, analog low-pass filter and output amplifiers. The 16 or 18 Bit linear input data for DAC consists of two formats, normal format and I 2S format. In addition, the device includes two control modes. One is hardware mode which can control mute and digital de-emphasis. The other one is software mode, where 4x9 bits internal control registers can be controlled by the serial setup port (SSP). Many functions such as 256 step attenuation, DAC mute, digital deemphasis and format conversions can be set up through these registers. * * * * * 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 High Performance Audio Output: 100 dB SNR, 96 dB Dynamic Range and -90 dB THD+N typically Two Control Function Modes: Hardware Mode and Software Mode Selected by Mode Pin Software Mode controlled by 4x9 bits Registers via Serial Setup Port (SSP) Main Control Functions: De-emphasis, Mute, 256 Step Attenuation, Channel Output Combination, Input Format Select such as 16 or 18 Bit, I 2S or Normal 20 pin SSOP Package * FEATURES * Power Supply: from +2.7 to +5.25 Volt, typically +5 Volt, for Analog and Digital Power * Sampling Clock Rate: 32 K, 44.1 K, and 48 K Hz * Master Clock Rate: 384 or 256 times of Sampling Clock Rate * Stereo 16 or 18 Bits Linear PCM Data Input * Two Types Linear PCM Data Input Format: Normal * APPLICATIONS W6630CR is for digital audio applications, such as Audio CD,Video CD, DVD, MP-3 player, STB, Multimedia PC and other digital audio/video equipment. Functional Block Delta-Sigma DAC-Filter VOL VAGL VOR VAGR LPF & Output Amplifier LPF & Output Amplifier 64X L_DAC Pin Configuration Data Conversion 8X Digital Oversampling Interpolation Multi-Bit Filter Delta-Sigma Modulator Serial Setup Port (SSP) & Control Registers SSP_EN/MUTE SSPCLK/DE1 SSPDIN/DE0 FSLR H/W or S/W Mode Function Control Serial Data Port (SDP) BCLK DINLR XTALI DGND DVDD FSLR DINLR BCLK ZERO VAGR VOR AGND 1 2 3 R_DAC ZERO Zero Detector 4 5 SSOP-20 6 15 14 7 13 8 12 9 10 (TOP VIEW) 11 20 19 18 17 16 XTALO CLKO SSP_EN/MUTE SSPCLK/DE1 SSPDIN/DE0 /RESET MODE VAGL VOL AVDD Power Supply Management System Sequence and Control System AGND AVDD DGND DVDD /RESET XTALI XTALO CLKO MODE 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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