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. • • • • • 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 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 Ω 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 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 Pin Configuration Data Conversion Delta-Sigma DAC-Filter VOL VAGL LPF & Output Amplifier 64X 8X Digital L_DAC Oversampling Interpolation VOR VAGR LPF & Output Amplifier Multi-Bit R_DAC Filter FSLR H/W or S/W Mode Function Control Serial Data Port (SDP) BCLK DINLR Delta-Sigma Modulator ZERO Serial Setup Port (SSP) & Control Registers Zero Detector SSP_EN/MUTE XTALI DGND DVDD FSLR DINLR BCLK ZERO VAGR SSPCLK/DE1 SSPDIN/DE0 VOR AGND 1 2 3 20 19 18 17 16 4 5 SSOP-20 6 15 14 7 13 8 12 9 10 11 XTALO CLKO SSP_EN/MUTE SSPCLK/DE1 SSPDIN/DE0 /RESET MODE VAGL VOL AVDD (TOP VIEW) Power Supply Management System AGND AVDD DGND DVDD Winbond Corporate Headquarters Tel : 886-3-5790666 Fax : 886-3-5796139 Sequence and Control System /RESET XTALI XTALO CLKO Taipei Sales Office Tel : 886-2-7190505 Fax : 886-2-7197502 MODE Winbond Electronics North America Corp. Tel : 1-408-9436666 Fax : 1-408-9436668 Details are subject to change without notice. All trademarks are property of their respective holders. Winbond Electronics H.K. Ltd. Tel : 852-27513100 Fax : 852-27552064 Apr. 1999