Pin Descriptions PIN NUMBER PIN NAME PIN FUNCTION 1 Composite Sync Out Composite sync pulse output; sync pulses start on a falling edge a" />
參數(shù)資料
型號: EL1883ISZ-T7
廠商: Intersil
文件頁數(shù): 3/9頁
文件大小: 0K
描述: IC VID SYNC SEPARATOR HORZ 8SOIC
標準包裝: 1,000
類型: 同步分離器
應(yīng)用: 驅(qū)動器,通信,PCMCIA
安裝類型: 表面貼裝
封裝/外殼: 8-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 8-SOIC
包裝: 帶卷 (TR)
3
Pin Descriptions
PIN NUMBER
PIN NAME
PIN 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)
An external resistor to ground sets all internal timing; a 681k 1% resistor will provide correct timing for
NTSC signals
7
Horizontal Output
Horizontal output; falling edge active
8
VDD 5V
Positive supply (5V)
NOTE: RSET must be a 1% resistor
Typical Performance Curves
FIGURE 1. RSET vs HORIZONTAL FREQUENCY
FIGURE 2. BURST/BACK PORCH DELAY vs RSET
FIGURE 3. HORIZONTAL SYNC WIDTH vs RSET
FIGURE 4. BURST/BACK PORCH WIDTH vs RSET
VDD = 3V, VDD = 5V, TA = 25°C
10
20
30
40
50
60
70
FREQUENCY (kHz)
900
800
700
600
500
400
300
200
100
0
R
SET
(k
)
TA = 25°C
VDD=3V
VDD=5V
100
200
300
400
500
600
800
RSET (k)
700
300
250
200
150
100
50
200
0
B
URS
T
BACK
P
O
RCH
DELA
Y
(ns)
VDD=3V
VDD=5V
TA = 25°C
100
200
300
400
500
600
800
RSET (k)
700
7
6
5
4
3
2
1
0
HORIZONT
AL
SYNC
WID
T
H
(s)
TA = 25°C
100
300
500
900
RSET (k)
700
4.5
4
3.5
3
2.5
2
1
0
BURST
B
ACK
PORCH
WIDTH
(s)
1.5
0.5
VDD=5V
VDD=3V
EL1883
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