參數(shù)資料
型號(hào): GS4881
廠商: Electronic Theatre Controls, Inc.
英文描述: Monolithic Video Sync Separators
中文描述: 單片視頻同步分離器
文件頁(yè)數(shù): 3/14頁(yè)
文件大小: 279K
代理商: GS4881
3
520 - 23 - 03
Supply Voltage
4.5
5
13.2
V
Supply Current
Outputs at Logic 1 V
CC
= 5 V
V
CC
= 12 V
-
4.6
6.5
mA
-
5.0
7.0
mA
Video Input (Pin 2)
(a) Signal Level
V
CC
= 5 V
Charge
0.5
-
4
Vp-p
(b) Clamp Current
500
650
850
μ
A
μ
A
μ
A
μ
s
V
Discharge - normal
9
11
13
- Nosync flag raised
65
95
115
(c) Delay to raising of Nosync flag
Video input held high
64
95
130
(d) Sync Tip Clamp Voltage
-
1.55
-
Sync Slice Level
Relative to sync tip clamp voltage
70
77
84
mV
R
SET
Pin Reference Voltage (Pin 6)
See Note 1
1.14
1.24
1.34
V
Composite Sync Out (Pin 1)
See Note 2
40
60
80
ns
Delay from Video
C
L
= 15p
C
L
= 15p
Back Porch Pulse Out (Pin 5)
(a) Delay from Rising
Edge of Sync
400
500
650
ns
(b) Pulse Width
2.0
2.5
3.2
μ
s
(c) Occurence Rate
H
H
H
Vertical Sync Out (Pin 3)
(a) Pulse Width
Serrations during vertical interval
197.7
197.7
197.7
μ
s
μ
s
kHz
(b) Default Starting Time
No serrations during the vertical interval
48
65
82
Horizontal Scan Rate
Modified R
SET
15
-
130
Logic Outputs
(a) V
OH
I
OH
= 40
μ
A V
CC
= 5 V
V
CC
= 12 V
I
OH
= 1.6 mA V
CC
= 5 V
V
CC
= 12 V
I
OL
= -1.6 mA
4.2
4.6
-
V
11.2
11.6
-
V
2.4
3.4
-
V
9.4
10.4
-
V
(b) V
OL
-
0.3
0.6
V
PARAMETER
CONDITIONS MIN TYP MAX UNITS
GS4881 ELECTRICAL CHARACTERISTICS
(V
CC
= 5 V, R
SET
= 680 k
, T
A
= 25
°
C, unless otherwise specified)
ORDERING INFORMATION
Part Number Package Type Temperature Range
GS4881 - CDA
8 PDIP
0
°
to 70
°
C
GS4881 - CKA
8 SOIC
0
°
to 70
°
C
GS4881 - CTA
8 TAPE
0
°
to 70
°
C
GS4881 - IDA
8 PDIP
-25
°
to 85
°
C
GS4881 - IKA
8 SOIC
-25
°
to 85
°
C
GS4881 - ITA
8 TAPE
-25
°
to 85
°
C
Note 1: When placing the R
SET
resistor and the 0.1
μ
F decoupling capacitor careful attention should be made to ensure that they are as close
as possible to pin 6. Care should also be taken to avoid parasitic capacitive coupling from any output pin (pins 1, 3, 5 and 7) to pin 6.
Note 2: Measured from slicing point of input falling edge to 50% point of composite sync falling edge.
相關(guān)PDF資料
PDF描述
GS4881-CDA Monolithic Video Sync Separators
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