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参数资料
| 型号： | EL4581CS-T7 |
| 厂商： | Intersil |
| 文件页数： | 4/10页 |
| 文件大小： | 0K |
| 描述： | IC VIDEO SYNC SEPARATOR 8-SOIC |
| 标准包装： | 1,000 |
| 类型： | 同步分离器 |
| 应用： | 多媒体显示器，测试设备 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
3
FN7172.2
November 12, 2010
Pin Descriptions
PIN NUMBER
PIN NAME
FUNCTION
1
Composite Sync Out
Composite sync pulse output. Sync pulses start on a falling edge and end on a rising edge.
2
Composite Video in
AC coupled composite video input. Sync tip must be at the lowest potential (Positive picture phase).
3
Vertical Sync Out
Vertical sync pulse output. The falling edge of Vert Sync is the start of the vertical period.
4
GND
Supply ground.
5
Burst/Back Porch Output
Burst/Back porch output. Low during burst portion of composite video.
6
RSET (Note 8)
An external resistor to ground sets all internal timing. 681k, 1% resistor will provide correct timing
for NTSC signals.
7
Odd/Even Output
Odd/Even field output. Low during odd fields, high during even fields. Transitions occur at start of
Vert Sync pulse.
8
VDD 5V
Positive supply. (5V)
NOTE:
8. RSET must be a 1% resistor.
Typical Performance Curves
FIGURE 1. RSET vs HORIZONTAL FREQUENCY
FIGURE 2. BACK PORCH CLAMP, ON-TIME vs RSET
FIGURE 3. VERTICAL PULSE WIDTH vs RSET
FIGURE 4. VERTICAL DEFAULT DELAY, TIME vs RSET
FIGURE 5. VERTICAL PULSE WIDTH vs TEMPERATURE
FIGURE 6. SUPPLY CURRENT vs TEMPERATURE
1000
900
800
700
600
500
400
300
200
100
10
15
20
25
30
35
40
45
50
FREQUENCY (kHz)
R
SET
(k
Ω
)
CLAMP TIME (s)
02
46
8
10
200
400
600
800
1000
0
R
SET
(k
Ω
)
200
400
600
800
1000
0
200
400
100
300
500
VERTICAL PULSE WIDTH (s)
R
SET
(k
Ω
)
200
400
600
800
1000
0
R
SET
(k
Ω
)
DELAY TIME (s)
040
80
20
60
100
150
200
250
300
350
PULSE
WI
DTH
(s)
-55
5
65
-25
35
95
125
TEMPERATURE (°C)
0.5
1.0
1.5
2.0
-55
5
65
-25
35
95
125
TEMPERATURE (°C)
SUPP
LY
CURRENT
(
m
A)
EL4581
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