16Bit 48KHz Sigma-Delta Audio Codec
GENERAL DESCRIPION
Samsung's BW0407X is high resolution,
single-chip stereo ADC and DAC that
employs the Sigma-Delta modulation
technique. With a resolution of 16bit,
oversampling of 64X and a 90dB Signal-
to-Noise ratio, BW0407X is suitable
for applications in consumer digital audio
system, multimedia and digital systems.
bw0407x
FEATURES
- 1 chip stereo A/D, D/A converter
- 4-th order Sigma-Delta modulator
- Sigma-Delta Stereo ADC.
* 64X Oversampling
* On-chip Decimation Filter
* On-chip Anti-Aliasing Filter
* 90dB Signal to Noise Ratio.
- Sigma-Delta Stereo DAC.
* 64X Oversampling
* On-chip 4X Interpolation Filter
* On-chip Analog Postfilter
* 90dB Signal to Noise Ratio
- Mute for Analog Output of DAC
- Zero detection mute for DAC
- Analog Single-ended Input and Output.
- Sampling Rate of 48KHz
- Single +3.3V Power Supply
TYPICAL APPLICATIONS
- multi-media applications
- consumer digital audio
- digital systems
FUNCTIONAL BLOCK DIAGRAM
single to
differential
AINL
AURST
sigma-delta
modulator
(analog)
single to
differential
PWDN<1:0>
decimation
filter
sigma-delta
modulator
(analog)
parallel
interface
SC-postfilter
sigma-delta
modulator
(digital)
&
Sinc
filter
AUSDOUT
AINR
AUSCLK
AULRCK
FORMAT
differential
to single
AOUTL
differential
to single
AOUTR
interpolation
filter
AUSDIN
SC-postfilter
MUTE
VREF
voltage
reference
clock
generator,
bist
AUSYSCK
Ver 1.2
(April 2002)
No responsibility is assumed by SEC for its use nor for any infringements of patents or other
rights of third parties that may result from its use. The content of this datasheet is subject to change without any
notice.
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