危鈭?/div>
Digital-To-Analog Converter for
digital audio System (CDP). The product contains
Serial-to-Parallel
Converter
and
Compensation
Filter, Digital Volume Attenuator by the MICOM
Interface, De-Emphasis Filter, FIR filter, Sinc Filter,
digital sigma-delta modulator, analog postfilter, AIF
(Anti-Image-Filter). The normal input and output
channels provides 95dB SNR (Signal to Noise
Ratio) over in band (20kHz).
The product employs the 1bit 4th-order sigma-delta
architecture with 16bit resolution, over sampling of
64X. And analog postfilter with low clock sensitivity
and linear phase, filters the shaping-nosie and
outputs analog voltage with high resolution. An
on-chip reference voltage is included to allow
single supply operations.
BW0405XC
BW0405XC
Features
-16bit
危鈭?/div>
Digital-To-Analog Converter
-On-Chip Analog Postfilter
-Filtered Line-Level Outputs, Linear Phase Filtering
-On-Chip Voltage Reference
-95dB SNR
-Sampling Rate 32KHz/44.1kHz/48KHz
-Input Rate 1Fs or 2Fs by Normal Mode/Double
Mode Selection
-Zero Input Detection Mute
-On-Chip Compensation Filter
-Input Volume Attenuator by the MICOM Interface
-On-Chip De-Emphasis Filter
(32KHz/44.1KHz/48KHz)
-On-Chip 4 times oversampling Digital Filter
-Low Clock Jitter Sensitivity
-Single 3.3V ~ 2.5V Power Supply
Applications
CD Player, Portable CD Player, CD-ROM,
Video-CD, Mini-Disk, DVD etc
Block Diagram
VDDD VSSD
VDDA VSSA
SDATA
BCK
LRCK
ZDENL
ZDENH
S/P
Converter
&
Attenuator
Compensation
Filter
&
De-emphsis
&
FIR Filter
Sinc Filter
&
Sigma-Delta
Modulator
DAC
&
Analog
Postfilter
AOUTL
Anti-Imaging
Filter
AOUTR
VCOMML(I)*
VCOMCL(I)*
VCOML(I)*
VREFML(I)*
VREFPL(I)*
IREF(B)*
VHALF(O)*
VREFIN(I)*
VREF(O)*
REFSAR(I)*
SC<1:0>(I)*
VREFPR(I)*
VREFMR(I)*
VCOMR(I)*
VCOMCR(I)*
VCOMMR(I)*
MICOM Interface
Timing Generation
Voltage
Reference
M
C
L
K
MM F I
D L S D
A D E N
T
L U
A
M
1
: 7
0 :
0
<
>
<
>
T PM B R
SDU I S
E L T S T
L
E T B
L O
N
P
MDD
S N E
E
C
M
K
S
E
R
R
O
R
B
S
D
I
A
G
O
F
S
6
4
O
D
S
L
O
D
S
R
I
F
S
6
4
I
A
D
S
L
I
A
D
S
R
*(I) : Input
*(O) : Output
*(B) : Bidirection
(Sep 2000)
This datasheet is the final version. 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.
Ver 2.0
SEC ASIC
1/11
ANALOG
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