EL4581CS Intersil, EL4581CS Datasheet - Page 3

• Manufacturer Part Number: EL4581CS
• Description: IC VIDEO SYNC SEPARATOR 8-SOIC
• Manufacturer: Intersil
• Type: Synchronous Separatorr

Specifications of EL4581CS

• Applications: Multimedia Displays, Test Equipment
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Pin Descriptions
NOTE:
Typical Performance Curves
8. R
PIN NUMBER
FIGURE 5. VERTICAL PULSE WIDTH vs TEMPERATURE
SET
1
2
3
4
5
6
7
8
FIGURE 1. R
FIGURE 3. VERTICAL PULSE WIDTH vs R
must be a 1% resistor.
1000
1000
350
300
250
200
150
900
800
700
600
500
400
300
200
100
800
600
400
200
-55
0
0
10
Composite Sync Out
Composite Video in
Vertical Sync Out
GND
Burst/Back Porch Output
RSET (Note 8)
Odd/Even Output
VDD 5V
15
SET
100
VERTICAL PULSE WIDTH (µs)
-25
20
PIN NAME
vs HORIZONTAL FREQUENCY
FREQUENCY (kHz)
TEMPERATURE (°C)
5
25
200
3
30
35
300
35
65
40
400
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.
An external resistor to ground sets all internal timing. 681k, 1% resistor will provide correct timing
for NTSC signals.
Odd/Even field output. Low during odd fields, high during even fields. Transitions occur at start of
Vert Sync pulse.
Positive supply. (5V)
Burst/Back porch output. Low during burst portion of composite video.
95
45
SET
50
500
125
EL4581
FIGURE 4. VERTICAL DEFAULT DELAY, TIME vs R
FIGURE 2. BACK PORCH CLAMP, ON-TIME vs R
FIGURE 6. SUPPLY CURRENT vs TEMPERATURE
1000
1000
800
600
400
200
800
600
400
200
2.0
1.5
1.0
0.5
FUNCTION
-55
0
0
0
0
-25
20
2
CLAMP TIME (µs)
DELAY TIME (µs)
5
TEMPERATURE (°C)
40
4
35
60
6
65
80
8
95
November 12, 2010
10
100
125
SET
SET
FN7172.2