EL1881C Elantec, EL1881C Datasheet - Page 3

• Manufacturer Part Number: EL1881C
• Description: Sync Separator/ Low Power
• Manufacturer: Elantec

Pin Descriptions
Pin Number
1. R
1
2
3
4
5
6
7
8
SET
must be a 1% resistor
Vertical Sync
Porch Output
Burst/Back
Composite
Composite
Pin Name
Odd/Even
Sync Out
Video In
V
R
Output
GND
SET
DD
Out
5V
[1]
Composite sync pulse output; sync pulses start on a falling edge and end on a rising edge
AC coupled composite video input; sync tip must be at the lowest potential (positive picture phase)
Vertical sync pulse output; the falling edge of vert sync is the start of the vertical period
Supply ground
Burst/back porch output; low during burst portion of composite video
An external resistor to ground sets all internal timing; a 681k 1% resistor will provide correct timing for NTSC signals
Odd/even field output; high during odd fields, low during even fields; transitions occur at start of vert sync pulse
Positive supply (5V)
3
Pin Function
Sync Separator, Low Power
EL1881C