參數(shù)資料
型號(hào): ZXFV4583
廠商: Zetex Semiconductor
英文描述: SYNC SEPARATOR WITH VARIABLE FILTER
中文描述: 同步分離器可變?yōu)V波器
文件頁(yè)數(shù): 3/14頁(yè)
文件大?。?/td> 212K
代理商: ZXFV4583
ZXFV4583
S E M IC O N D U C T O R S
ISSUE 3 - NOVEMBER 2003
3
PARAMETER
CONDITIONS
TEST
MIN
TYP
MAX
UNIT
AC Characteristics
FILTIN function input voltage range
PAL/NTSC
P
0.5
2
V pk-pk
Filter voltage gain
FILTIN to FILOUT
P
4.9
5.7
6.5
dB
Filter attenuation
4.4MHz for PAL,
3.6MHz for NTSC
P
P
15
10
19
14
dB
dB
Slice level
Vin = 1V pk-pk
P
40
50
60
%
CSYNC prop. Delay, t
CS
Relative to pin 4 input
P
250
400
ns
VSYNC delay
C
250
ns
VSYNC pulse width, t
VS Y NC
(PAL)
C
165
s
VSYNC pulse width, t
VS Y NC
(NTSC)
C
195
s
VSYNC default delay, t
VS D
P
30
36
45
s
HSYNC delay
P
250
ns
HSYNC pulse width, t
HS Y NC
P
3.8
5
6.2
s
BKPCH delay, t
BD
Relative to pin 4 input
P
250
400
ns
BKPCH pulse width, t
B
P
2.7
3.7
4.7
s
ELECTRICAL CHARACTERISTICS (Cont.)
V
CC
= 5V, R
SET
= 681k , R
FILT
= 22k , R
NOSIG
= 82k , T
amb
= 25 C unless otherwise stated.
Note:
In order to avoid coupling between high speed logic output signals and analog inputs, the test circuit
layout uses connections from the logic output pins routed away from the analog pins. In the application,
similar care in the layout is required, keeping resistors R
FILT
, R
NOSIG
and R
SET
close to their respective
pins, in particular routing signal CSYNC away from pins 1, 2 and 12.
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