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Sony Corporation |
Video Scan Converter
CXD2428Q
Description
The CXD2428Q is an IC which generates control
signals and performs line interpolation calculations
for field memory (CXK1206AM/ATM) in order to
perform video signal scanning line conversion. In
addition, this IC performs the aspect conversion of
the ZOOM mode and WIDE-ZOOM mode in order to
support wide screens.
100 pin QFP (Plastic)
Features
• Video signal (NTSC/PAL) scanning line conversion function
• ZOOM function
(Function to cut top and bottom areas of 4:3 image and expand it to 16:9)
• WIDE-ZOOM function
(Function to vertically compress 4:3 image and expand it to 16:9)
• Operating frequency: 28.6MHz (typ.)
Absolute Maximum Ratings (Ta = 25°C)
• Supply voltage
VDD VSS – 0.5 to +7.0
• Input voltage
VI VSS – 0.5 to VDD +0.5
• Output voltage
VO VSS – 0.5 to VDD +0.5
• Operating temperature Topr
–20 to +75
• Storage temperature
Tstg
–55 to +150
V
V
V
°C
°C
Operating Conditions
Supply voltage
VDD
4.5 to 5.5
V
Applications
Liquid crystal projectors, etc.
Structure
Silicon gate CMOS IC
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.
–1–
E95442-ST
Block Diagram
CXD2428Q
CSD0 52
CSD1 55
CSD2 56
CSD3 57
CSD4 58
CSD5 59
CSD6 60
CSD7 61
CFD0 62
CFD1 63
CFD2 64
CFD3 66
CFD4 67
CFD5 68
CFD6 69
CFD7 70
YSD0 71
YSD1 72
YSD2 73
YSD3 74
YSD4 75
YSD5 76
YSD6 77
YSD7 80
YFD0 81
YFD1 82
YFD2 83
YFD3 84
YFD4 85
YFD5 86
YFD6 87
YFD7 88
BLNK 16
3 28 53 78 4 15 29 40 54 65 79 90 6 11 14 17 18 19 51
H-WRITE
INTERPOLATION
H-READ
V-WRITE
V-READ
COEFFICIENT
SERIAL-
INTERFACE
1/2
23 24 25 26 27 30 31 32 33 34 35 36 37 38 39 41
42 43 44
12 FSL1
13 FSL2
93 ADCK
94 ODEV
96 HIN
98 CKI
99 RYOE
100 BYOE
21 HOUT
22 HBLK
45 RDCK
95 HRET
89 HCR0
91 VCR0
92 WEN0
97 VIN
10 VBLK
20 VOUT
46 REN1
47 VCR1
48 HCR1
49 INC1
50 INC2
1 SCLK
2 SCTR
5 SDAT
7 P0
8 P1
9 P2
–2–
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