el1881 Intersil Corporation, el1881 Datasheet - Page 3
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el1881
Manufacturer Part Number
el1881
Description
Sync Separator, Low Power
Manufacturer
Intersil Corporation
Datasheet
1.EL1881.pdf
(11 pages)
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Pin Descriptions
NOTE:
1. R
PIN NUMBER
SET
1
2
3
4
5
6
7
8
must be a 1% resistor
Composite Sync
Out
Composite Video
In
Vertical Sync Out
GND
Burst/Back Porch
Output
RSET (Note 1)
Odd/Even Output
VDD 5V
PIN NAME
3
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)
EL1881C
PIN FUNCTION
FN7018.1