Transcript
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 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 • Main Control Functions: 44.1khz De-emphasis, Mute, I 2S or Normal Format • 14 pin SOP Package
APPLICATIONS
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
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
Pin Configuration Data Conversion
Delta-Sigma DAC-Filter VOL VAG
LPF & Output Amplifier
L_DAC
64X
8X Digital
Oversampling Interpolation
VOR
LPF & Output Amplifier
Multi-Bit Filter
R_DAC
FSLR Serial Data Port (SDP)
Delta-Sigma Modulator
BCLK DINLR
FSLR DINLR BCLK NC VAG VOR GND
Power Supply
GND
VDD
Winbond Corporate Headquarters Tel : 886-3-5790666 Fax : 886-3-5796139
Sequence and Control System
2 3 4 SOP-14 5 6 7
14 13 12 11 10
MCLK
9 8
VOL VDD
(TOP VIEW)
MCLK MUTE FMT DEEMP
Taipei Sales Office Tel : 886-2-7190505 Fax : 886-2-7197502
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NC
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
FMT DEEMP NC MUTE
