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GS4881-CTA 参数 Datasheet PDF下载

GS4881-CTA图片预览
型号: GS4881-CTA
PDF下载: 下载PDF文件 查看货源
内容描述: 单片视频同步分离器 [Monolithic Video Sync Separators]
分类和应用:
文件页数/大小: 14 页 / 282 K
品牌: GENNUM [ GENNUM CORPORATION ]
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GS4981 ELECTRICAL CHARACTERISTICS
PARAMETER
Supply Voltage
Supply Current
(V
CC
= 5 V, R
SET
= 680 kΩ, T
A
= 25° C, unless otherwise specified)
CONDITIONS
MIN
4.5
TYP
5
4.6
5.0
MAX
13.2
6.5
7.0
UNITS
V
mA
mA
Outputs at Logic 1
V
CC
= 5 V
V
CC
= 12 V
-
-
Video Input (Pin 2)
(a) Signal Level
(b) Clamp Current
V
CC
= 5 V
Charge
Discharge - normal
- Nosync flag raised
(c) Delay to raising of Nosync flag Video input held high
(d) Sync Tip Clamp Voltage
Sync Slice Level
R
SET
Pin Reference Voltage (Pin 6)
Composite Sync Out (Pin 1)
Delay from Video
Back Porch Pulse Out (Pin 5)
(a) Delay from Rising
Edge of Sync
(b) Pulse Width
(c) Occurence Rate
Vertical Sync Out (Pin 3)
(a) Pulse Width
(b) Default Starting Time
Horizontal Sync Out (Pin 7)
(a) Delay from Video
(b) Pulse Width
Horizontal Scan Rate
Logic Outputs
(a) V
OH
I
OH
= 40
µA
I
OH
= 1.6 mA
Note 3
(b) V
OL
Note 1: When placing the R
SET
0.5
500
9
65
64
-
-
650
11
95
95
1.55
77
1.24
60
4
850
13
115
130
-
84
1.34
80
Vp-p
µA
µA
µA
µs
V
mV
V
ns
Relative to sync tip clamp voltage
See Note 1
See Note 2
C
L
= 15p
C
L
= 15p
70
1.14
40
400
2.0
H
500
2.5
H
650
3.2
H
ns
µs
Serrations during vertical interval
No serrations during the vertical interval
C
L
= 15p
197.7
48
197.7
65
197.7
82
µs
µs
ns
µs
kHz
90
5.0
Modified R
SET
V
CC
= 5 V
V
CC
= 12 V
V
CC
= 5 V
V
CC
= 12 V
15
190
7.0
-
290
9.0
130
4.2
11.2
2.4
9.4
-
4.6
11.6
3.4
10.4
0.3
-
-
-
-
0.6
V
V
V
V
V
I
OL
= -1.6 mA
resistor and the 0.1µF 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.
Note 3: Applies only to composite sync, vertical sync, and back porch outputs. Horizontal sync has a passive 10 kΩ pull-up to V
CC
.
ORDERING INFORMATION
Part Number
GS4981 - CDA
GS4981 - CKA
GS4981 - CTA
GS4981 - IDA
GS4981 - IKA
GS4981 - ITA
520 - 23 - 03
Package Type
8 PDIP
8 SOIC
8 TAPE
8 PDIP
8 SOIC
8 TAPE
Temperature Range
0° to 70° C
0° to 70° C
0° to 70° C
-25° to 85° C
-25° to 85° C
-25° to 85° C
4