Sony CXD2428Q Datasheet

CXD2428Q
Video Scan Converter
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.
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.)
100 pin QFP (Plastic)
Absolute Maximum Ratings (Ta = 25°C)
Supply voltage VDD VSS – 0.5 to +7.0 V
Input voltage VI VSS – 0.5 to VDD +0.5 V
Output voltage VO VSS – 0.5 to VDD +0.5 V
Operating temperature Topr –20 to +75 °C
Storage temperature Tstg –55 to +150 °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.
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E95442-ST
Block Diagram
CXD2428Q
CSD0 CSD1 CSD2 CSD3 CSD4 CSD5 CSD6 CSD7
CFD0 CFD1 CFD2 CFD3 CFD4 CFD5 CFD6 CFD7
YSD0 YSD1 YSD2 YSD3 YSD4 YSD5 YSD6 YSD7
YFD0 YFD1 YFD2 YFD3 YFD4 YFD5 YFD6 YFD7
BLNK
52 55 56 57 58 59 60 61
62
63
64
66 67
68
69
71
74 75
76 77
80
81
82 83 84 85
86 87 88
16
70
72 73
0
DD
V
28
3
3
2
1
DD
DD
DD
V
V
V
53
78
INTERPOLATION
3
2
1
0
SS
SS
V
V
4
15
29
SS
V
40
SS
V
54
4
SS
V
65
5
SS
V
79
6
SS
V
7
SS
V
TST0
6
90
11
COEFFICIENT
TST1
14
TST2
17
TST3
18
TST4
19
TST5
TST6
51
H-WRITE
H-READ
V-WRITE
V-READ
SERIAL-
INTERFACE
12 13
93 94 96 98 99
100
21
22 45
95
89
91
92
97
10
20
46 47 48
50
49
1 2 5 7 8 9
FSL1 FSL2 ADCK ODEV HIN CKI RYOE BYOE
HOUT HBLK RDCK HRET
HCR0 VCR0 WEN0 VIN
VBLK VOUT REN1 VCR1 HCR1 INC1 INC2
SCLK SCTR SDAT P0 P1 P2
1/2
23
24
CD7
25
CD6
26
CD5
27
CD4
30
CD3
31
CD2
32
CD1
CD0
33
34
YD7
35
YD6
36
YD5
37
YD4
– 2 –
YD3
38
39
YD2
41
YD1
YD0
42
BYCK
43
RYCK
44
YCK
Pin Description
Pin
No.
Symbol I/O Description
1
SCLK
2
SCTR
3
VDD0
4
VSS0
5
SDAT
6
TST0
7
P0
8
P1
9
P2
10
VBLK
11
TST1
I
Serial transfer clock
I
Serial transfer control
Power supply
GND
I
Serial transfer data
O
Leave open.
I/O
I/O port
I/O
I/O port
I/O
I/O port
O
Vertical blanking output
I
Fixed to high.
CXD2428Q
12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
FSL1 FSL2 TST2 VSS1 BLNK TST3 TST4 TST5 VOUT HOUT HBLK CD7 CD6 CD5 CD4 CD3 VDD1
I
Field identification selection (High: internal, Low: external)
I
Field information polarity switching
I
Fixed to low.
GND
I
Output data control (High: black display)
I
Fixed to high.
I
Leave open.
I
Leave open.
O
Vertical sync signal output
O
Horizontal sync signal output
O
Horizontal blanking signal
O
B-Y/R-Y data output (MSB)
O
B-Y/R-Y data output
O
B-Y/R-Y data output
O
B-Y/R-Y data output
O
B-Y/R-Y data output
Power supply 29 30 31 32 33 34 35 36 37
VSS2 CD2 CD1 CD0 YD7 YD6 YD5 YD4 YD3
GND
O
B-Y/R-Y data output
O
B-Y/R-Y data output
O
B-Y/R-Y data output (LSB)
O
Y data output (MSB)
O
Y data output
O
Y data output
O
Y data output
O
Y data output
– 3 –
CXD2428Q
Pin No.
38 39 40 41 42 43 44 45 46 47 48 49 50 51 52
Symbol I/O Description
YD2 YD1 VSS3 YD0 BYCK RYCK YCK RDCK REN1 VCR1 HCR1 INC1 INC2 TST6 CSD0
O
Y data output
O
Y data output
GND
O
Y data output (LSB)
O
DA converter (B-Y) clock output
O
DA converter (R-Y) clock output
I
DA converter clock input
I
Readout clock input
O
Readout memory enable
O
Readout memory vertical clear
O
Readout memory horizontal clear
O
Readout memory line increment
O
Readout memory line increment
I
Fixed to high.
I
B-Y/R-Y lower line data input (LSB) 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69
VDD2 VSS4 CSD1 CSD2 CSD3 CSD4 CSD5 CSD6 CSD7 CFD0 CFD1 CFD2 VSS5 CFD3 CFD4 CFD5 CFD6
Power supply
GND
I
B-Y/R-Y lower line data input
I
B-Y/R-Y lower line data input
I
B-Y/R-Y lower line data input
I
B-Y/R-Y lower line data input
I
B-Y/R-Y lower line data input
I
B-Y/R-Y lower line data input
I
B-Y/R-Y lower line data input (MSB)
I
B-Y/R-Y upper line data input (LSB)
I
B-Y/R-Y upper line data input
I
B-Y/R-Y upper line data input
GND
I
B-Y/R-Y upper line data input
I
B-Y/R-Y upper line data input
I
B-Y/R-Y upper line data input
I
B-Y/R-Y upper line data input 70 71 72 73 74
CFD7 YSD0 YSD1 YSD2 YSD3
I
B-Y/R-Y upper line data input (MSB)
I
Y lower line data input (LSB)
I
Y lower line data input
I
Y lower line data input
I
Y lower line data input
– 4 –
Pin
No.
75 76 77 78 79 80 81 82 83 84 85 86
Symbol I/O Description
YSD4 YSD5 YSD6 VDD3 VSS6 YSD7 YFD0 YFD1 YFD2 YFD3 YFD4 YFD5
I
Y lower line data input
I
Y lower line data input
I
Y lower line data input
Power supply
GND
I
Y lower line data input (MSB)
I
Y upper line data input (LSB)
I
Y upper line data input
I
Y upper line data input
I
Y upper line data input
I
Y upper line data input
I
Y upper line data input
CXD2428Q
87 88 89 90 91 92 93 94 95 96 97 98 99
100
YFD6 YFD7 HCR0 VSS7 VCR0 WEN0 ADCK ODEV HRET HIN VIN CKI RYOE BYOE
I
Y upper line data input
I
Y upper line data input (MSB)
O
Write memory horizontal clear
GND
O
Write memory vertical clear
O
Write memory enable
O
AD converter clock
I
Field information input
O
Phase comparison output
I
Horizontal sync signal input
I
Vertical sync signal input
I
Write clock input
O
AD converter (R-Y) enable
O
AD converter (B-Y) enable
– 5 –
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