GS1881-CDA Gennum Corporation, GS1881-CDA Datasheet - Page 2

• Manufacturer Part Number: GS1881-CDA
• Description: Monolithic Video SYNC Separators
• Manufacturer: Gennum Corporation

520 - 23 - 03
ORDERING INFORMATION
GS1881 ELECTRICAL CHARACTERISTICS
Note 1: When placing the R
Note 2: Measured from slicing point of input falling edge to 50% point of composite sync falling edge.
Supply Voltage
Supply Current
Video Input (Pin 2)
Sync Slice Level
R
Composite Sync Out (Pin 1)
Delay from Video
Back Porch Pulse Out (Pin 5)
(a) Delay from Rising
(b) Pulse Width
Vertical Sync Out (Pin 3)
(a) Pulse Width
(b) Default Starting Time
Horizontal Scan Rate
Logic Outputs
(a) V
(b) V
Part Number
GS1881 - CDA
GS1881 - CKA
GS1881 - CTA
GS1881 - IDA
GS1881 - IKA
GS1881 - ITA
(a) Signal Level
(b) Clamp Current
(c) Delay to raising of Nosync flag Video input held high
(d) Sync Tip Clamp Voltage
SET
Edge of Sync
OH
Pin Reference Voltage (Pin 6)
OL
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.
PARAMETER
Package Type
SET
8 PDIP
8 SOIC
8 TAPE
8 PDIP
8 SOIC
8 TAPE
resistor and the 0.1 F decoupling capacitor careful attention should be made to ensure that they are as close
Outputs at Logic 1
V
Charge
Discharge - normal
Relative to sync tip clamp voltage
See Note 1
See Note 2
C
C
Serrations during vertical interval
No serrations during the vertical interval
Modified R
I
I
I
OH
OH
OL
CC
L
L
Temperature Range
= 15p
= 15p
= -1.6 mA
= 40 A
= 1.6 mA
= 5 V
-25 to 85 C
-25 to 85 C
-25 to 85 C
0 to 70 C
0 to 70 C
0 to 70 C
SET
- Nosync flag raised
(V
CONDITIONS
CC
V
V
= 5 V, R
V
V
CC
CC
CC
CC
= 5 V
= 5 V
= 12 V
V
= 12 V
V
CC
CC
2
= 5 V
= 12 V
SET
= 680 k , T
A
197.7
= 25 C, unless otherwise specified)
MIN
1.14
11.2
400
4.5
0.5
500
2.0
4.2
2.4
9.4
EXCEPT AT A STATIC-FREE WORKSTATION
65
64
70
40
48
15
9
-
-
-
-
DO NOT OPEN PACKAGES OR HANDLE
SENSITIVE DEVICES
ELECTROSTATIC
CAUTION
197.7
TYP
1.55
1.24
11.6
10.4
650
500
4.6
5.0
2.5
4.6
3.4
0.3
11
95
95
77
60
65
5
-
-
197.7
MAX
13.2
1.34
850
115
130
650
130
6.5
7.0
3.2
0.6
13
84
82
80
4
-
-
-
-
-
UNITS
Vp-p
kHz
mA
mA
mV
ns
ns
V
V
V
V
V
V
V
V
A
A
A
s
s
s
s