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参数资料
| 型号： | SCG4525 |
| 厂商： | CONNOR WINFIELD CORP |
| 元件分类： | 时钟及定时 |
| 英文描述： | 4000/14000/40000 SERIES, PLL BASED CLOCK DRIVER, 1 TRUE OUTPUT(S), 1 INVERTED OUTPUT(S), DSO18 |
| 封装： | 1 X 1.025 INCH, 0.45 INCH HEIGHT, SMT-18 |
| 文件页数： | 12/16页 |
| 文件大小： | 2334K |
| 代理商： | SCG4525 |
Preliminary Data Sheet #: SG069
Page 5 of 16
Rev: P00
Date: 02/06/03
Copyright 2003 The Connor-Winfield Corp. All Rights Reserved Specifications subject to change without notice
Pin Description
Table 6
Pin #
Pin Name
Pin Information
Note
1
ENABLE/TRI-STATE
VCXO Enable. (Enable = 0, Disable = 1 = CMOS Outputs Tri-stated)
9.0
2
TCK
No Connection, Internal Factory Programming Input.
8.0
3
TDO
No Connection, Internal Factory Programming Input.
8.0
4
REF
A
19.44 MHz CMOS Reference Frequency Input.
5
SEL
AB
Input Reference Select Pin. (REFA = 0, REFB = 1)
9.0
6
RESET
RESET. (RESET = 1)
9.0
7
REF
B
19.44 MHz CMOS Reference Frequency Input.
8V
ee
Ground.
9FR
status
Free Run Status. (FR = 1)
10
V
cc
Supply Voltage relative to ground.
11
REF_OUT
Filtered 77.76 MHz CMOS output
12
ALARM
Loss of Reference / Lock alarm. (Alarm = 1)
13
FR
Force Free Run. (Phase Lock = 0, Free Run = 1)
9.0
14
TDI
No Connection, Internal Factory Programming Input.
8.0
15
TMS
No Connection, Internal Factory Programming Input.
8.0
16
QN
LVPECL Complementary Output.
17
V
ee
Ground.
18
Q
LVPECL Output.
Circuit Board Footprint & Keepout Recommendations
Figure 3
0.8400
[21.34 mm]
1.0400
[26.42 mm]
0.8650
[21.97 mm]
0.1000
[2.54 mm]
0.0350
[0.89 mm]
0.0650
[1.65 mm]
0.1000
[2.54 mm]
Keep Out
Area
1.0700
[27.18 mm]
NOTES
8.0
Do not connect pin
9.0
Input pulled to ground
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