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GS1881-CTAE3 View Datasheet(PDF) - Gennum -> Semtech

Part Name
Description
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GS1881-CTAE3
Gennum
Gennum -> Semtech Gennum
GS1881-CTAE3 Datasheet PDF : 29 Pages
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Table 2-3: GS4981 Electrical Characteristics (Continued)
Parameter
Conditions
Min
Typ
Max
Units
(a) Delay from Rising Edge of Sync
(b) Pulse Width
CL = 15p
400
500
650
ns
2.0
2.5
3.2
μs
(c) Occurrence Rate
H
H
H
Vertical Sync Out (Pin 3)
(a) Pulse Width
Serrations during vertical interval
197.7
197.7
197.7
μs
(b) Default Starting Time
No serrations during vertical interval
48
65
82
μs
Horizontal Sync Out (Pin 7)
(a) Delay From Video
CL = 15p
90
190
290
ns
(b) Pulse Width
5.0
7.0
9.0
μs
Horizontal Scan Rate
Modified RSET
15
130
kHz
Logic Outputs
(a) VOH
Ι OH = 40μA
VCC = 5V
4.2
4.6
V
VCC = 12V
11.2
11.6
V
Ι OH =
1.6mA
VCC = 5V
2.4
3.4
V
See Note 3.
VCC = 12V
9.4
10.4
V
(b) VOL
Ι OL = 1.6mA
0.3
0.6
V
NOTES:
1. When placing the RSET 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.
2. Measured from slicing point of input falling edge to 50% point of composite sync falling edge.
3. Applies only to composite sync, vertical sync, and back porch outputs. Horizontal sync has a passive 10kΩ pull-up to VCC.
GS1881, GS4881, GS4981 Monolithic Video Sync
Separators
Data Sheet
6926 - 5
November 2009
7 of 29
Proprietary & Confidential
 

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