CS4952 查看數據表（PDF） - Cirrus Logic
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CS4952 Datasheet PDF : 44 Pages
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CS4952/53
TQFP Pin Description
Pin Name
V [7:0]
CLKIN
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
8, 7, 6, 5, 4, 3, 2, 1
27
13
12
10
11
9
25
26
17,18,19,20,21,22,23,24
29
30
43
42
37
38
36
35
34
28
31
44
14, 33, 39, 41
15, 16, 32, 40
Type
Description
IN
Digital video data inputs
IN
27 MHz input clock
IN
Address enable line / subcarrier crystal input
OUT subcarrier crystal output
I/O Active low horizontal sync, or composite blank signal
I/O Active low vertical sync.
OUT Video field ID. Selectable polarity
IN
Host parallel port read strobe, active low
IN
Host parallel port write strobe, active low
I/O Host parallel port/ general purpose I/O
I/O
I2C data
IN
I2C clock input
CURRENT Composite video output for driving 75 Ω loads
CURRENT Composite video output for driving 37.5 Ω loads
CURRENT Luminance analog output for driving 37.5 Ω loads
CURRENT Chrominance analog output for driving 37.5 Ω loads
OUT Internal voltage reference output
IN
External voltage reference input
OUT DAC current set
OUT Interrupt output, active high
IN
Active low master reset
IN
TEST pin. Ground for normal operation
PS +5 V supply
PS Ground
42
DS223PP2
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