CXD2044Q
Digital Comb Filter (NTSC/PAL/PAL-M/PAL-N)
For the availability of this product, please contact the sales office.
Description
The CXD2044Q is an adaptive intra-field comb
filter compatible with NTSC, PAL, PAL-M and PAL-N
systems, and can provide high-precision Y/C
separation with a single chip.
Features
鈥?/div>
Intra-field Y/C separation by adaptive processing
鈥?/div>
8-bit A/D converter (1-channel)
鈥?/div>
8-bit D/A converter (2-channel)
鈥?/div>
Four 1H delay lines
鈥?/div>
Clock 4fsc
Absolute Maximum Ratings
(Ta = 25擄C, Vss = 0V)
鈥?/div>
Supply voltage DV
DD
V
SS
鈥?0.5 to +7.0
V
AAVD
V
SS
鈥?0.5 to +7.0
V
ADVD V
SS
鈥?0.5 to +7.0
V
YV
DD
V
SS
鈥?0.5 to +7.0
V
CV
DD
V
SS
鈥?0.5 to +7.0
V
鈥?/div>
Input voltage
V
I
V
SS
鈥?0.5 to V
DD
+ 0.5 V
鈥?/div>
Output voltage V
O
V
SS
鈥?0.5 to V
DD
+ 0.5 V
鈥?/div>
Storage temperature
Tstg
鈥?5 to +150
擄C
Block Diagram
Recommended Operating Conditions
5.0 鹵 0.25
鈥?/div>
Supply voltage DV
DD
AAVD
5.0 鹵 0.25
ADVD
YV
DD
CV
DD
鈥?/div>
Analog input
ADIN
鈥?/div>
Operating temperature
Topr
5.0 鹵 0.25
5.0 鹵 0.25
5.0 鹵 0.25
1.8
鈥?0 to +75
80 pin QFP (Plastic)
V
V
V
V
V
Vp-p
擄C
Applications
Y/C separation for color TVs and VCRs
Structure
Silicon gate CMOS IC
Analog Vin
A/D
NTSC: 1H
PAL: 2H
NTSC: 1H
PAL: 2H
DL
D/A
A-Yout
Digital Vin
8
Adaptive
filter
operation
8
D-Yout
D/A
A-Cout
Logic operation
8
D-Cout
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
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