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CS4953 Datasheet

  • CS4953

  • Cirrus Logic [NTSC/PAL Digital Video Encoder]

  • 464.80KB

  • CIRRUS

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CS4952/53
PLCC Pin Description
Pin Name
V [7:0]
CLK
ADDR
XTAL
HSYNC/CB
VSYNC
FIELD
RD
WR
PDAT [7:0]
SDA
SCL
CVBS75
CVBS37
Y
C
VREFOUT
VREFIN
ISET
INT
RESET
TEST
VAA
GND
Pin Number
14, 13, 12, 11, 10, 9, 8, 7
33
19
18
16
17
15
31
32
23,24,25,26,27,28,29,30
35
36
5
4
43
44
42
41
40
34
37
6
1, 3, 20, 39
2, 22, 21, 38
Type
IN
IN
IN
OUT
I/O
I/O
OUT
IN
IN
I/O
I/O
IN
CURRENT
CURRENT
CURRENT
CURRENT
OUT
IN
OUT
OUT
IN
IN
PS
PS
Description
Digital video data inputs
27 MHz input clock
Address enable line / subcarrier crystal input
subcarrier crystal output
Active low horizontal sync, or composite blank signal
Active low vertical sync.
Video field ID. Selectable polarity
Host parallel port read strobe, active low
Host parallel port write strobe, active low
Host parallel port/ general purpose I/O
I
2
C data
I
2
C clock input
Composite video output for driving 75
鈩?/div>
loads
Composite video output for driving 37.5
鈩?/div>
loads
Luminance analog output for driving 37.5
鈩?/div>
loads
Chrominance analog output for driving 37.5
鈩?/div>
loads
Internal voltage reference output
External voltage reference input
DAC current set
Interrupt output, active high
Active low master reset
TEST pin. Ground for normal operation
+5 V supply
Ground
DS223PP2
39

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