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

Part Name
Description
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GS1881-CDA
Gennum
Gennum -> Semtech Gennum
GS1881-CDA Datasheet PDF : 29 Pages
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2. Electrical Characteristics
2.1 GS1881 Electrical Characteristics
Table 2-1 shows the electrical characteristics of the GS1881 where conditions are
VCC = 5V, RSET = 680kΩ, TA =25°C, unless otherwise shown.
Table 2-1: GS1881 Electrical Characteristics
Parameter
Conditions
Supply Voltage
Supply Current
Outputs at
Logic 1
VCC = 5V
VCC = 12V
Video Input (Pin 2)
(a) Signal Level
VCC = 5V
(b) Clamp Current
Charge
Discharge - normal
Discharge - Nosync flag raised
(c) Delay to raising of Nosync flag Video input held high
(d) Sync Tip Clamp Voltage
Sync Slice Level
Relative to sync tip clamp voltage
RSET Pin Reference Voltage (Pin 6) See Note 1.
Composite Sync Out (Pin 1)
Delay from Video
See Note 2.
CL = 15p
Back Porch Pulse Out (Pin 5)
(a) Delay from Rising Edge of Sync
(b) Pulse Width
CL = 15p
Vertical Sync Out (Pin 3)
(a) Pulse Width
Serrations during vertical interval
(b) Default Starting Time
No serrations during vertical interval
Horizontal Scan Rate
Modified RSET
Logic Outputs
(a) VOH
Ι OH = 40μA
VCC = 5V
VCC = 12V
Ι OH =
1.6mA
VCC = 5V
VCC = 12V
Min
4.5
0.5
500
9
65
64
70
1.14
40
400
2.0
197.7
48
15
4.2
11.2
2.4
9.4
Typ
5
4.6
5.0
650
11
95
95
1.55
77
1.24
60
500
2.5
197.7
65
4.6
11.6
3.4
10.4
Max
13.2
30
6.5
4
850
13
115
130
84
1.34
80
650
3.2
197.7
82
130
Units
V
mA
mA
Vp-p
μA
μA
μA
μs
V
mV
V
ns
ns
μs
μs
μs
kHz
V
V
V
V
GS1881, GS4881, GS4981 Monolithic Video Sync
Separators
Data Sheet
6926 - 5
November 2009
4 of 29
Proprietary & Confidential
 

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