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GS1881-IKAE3 View Datasheet(PDF) - Gennum -> Semtech

Part Name
Description
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GS1881-IKAE3
Gennum
Gennum -> Semtech Gennum
GS1881-IKAE3 Datasheet PDF : 29 Pages
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Table 2-1: GS1881 Electrical Characteristics (Continued)
Parameter
Conditions
Min
Typ
Max
Units
(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.
2.2 GS4881 Electrical Characteristics
Table 2-2 shows the electrical characteristics of the GS4881 where conditions are
VCC = 5V, RSET = 680kΩ, TA =25°C, unless otherwise shown.
Table 2-2: GS4881 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
(c) Occurrence Rate
Vertical Sync Out (Pin 3)
(a) Pulse Width
Serrations during vertical interval
(b) Default Starting Time
No serrations during vertical interval
Min
4.5
0.5
500
9
65
64
70
1.14
40
400
2.0
H
197.7
48
Typ
5
4.6
5.0
650
11
95
95
1.55
77
1.24
60
500
2.5
H
197.7
65
Max
13.2
30
6.5
4
850
13
115
130
84
1.34
80
650
3.2
H
197.7
82
Units
V
mA
mA
Vp-p
μA
μA
μA
μs
V
mV
V
ns
ns
μs
μs
μs
GS1881, GS4881, GS4981 Monolithic Video Sync
Separators
Data Sheet
6926 - 5
November 2009
5 of 29
Proprietary & Confidential
 

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