datasheetbank_Logo
Integrated circuits, Transistor, Semiconductors Search and Datasheet PDF Download Site

GS1881 View Datasheet(PDF) - Gennum -> Semtech

Part Name
Description
View to exact match
GS1881
Gennum
Gennum -> Semtech Gennum
GS1881 Datasheet PDF : 29 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
Table 2-2: GS4881 Electrical Characteristics (Continued)
Parameter
Conditions
Min
Typ
Max
Units
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
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.
2.3 GS4981 Electrical Characteristics
Table 2-2 shows the electrical characteristics of the GS4981 where conditions are
VCC = 5V, RSET = 680kΩ, TA =25°C, unless otherwise shown.
Table 2-3: GS4981 Electrical Characteristics
Parameter
Conditions
Min
Typ
Supply Voltage
4.5
5
Supply Current
Outputs at
Logic 1
VCC = 5V
VCC = 12V
4.6
5.0
Video Input (Pin 2)
(a) Signal Level
VCC = 5V
0.5
(b) Clamp Current
Charge
500
650
Discharge - normal
9
11
Discharge - Nosync flag raised
65
95
(c) Delay to raising of Nosync flag Video input held high
64
95
(d) Sync Tip Clamp Voltage
1.55
Sync Slice Level
Relative to sync tip clamp voltage
70
77
RSET Pin Reference Voltage (Pin 6) See Note 1.
1.14
1.24
Composite Sync Out (Pin 1)
Delay from Video
See Note 2.
CL = 15p
40
60
Back Porch Pulse Out (Pin 5)
Max
13.2
30
6.5
4
850
13
115
130
84
1.34
80
Units
V
mA
mA
Vp-p
μA
μA
μA
μs
V
mV
V
ns
GS1881, GS4881, GS4981 Monolithic Video Sync
Separators
Data Sheet
6926 - 5
November 2009
6 of 29
Proprietary & Confidential
 

Share Link: 

datasheetbank.com [ Privacy Policy ] [ Request Datasheet ] [ Contact Us ]