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參數(shù)資料
| 型號： | PT7V4027WE |
| 廠商： | PERICOM SEMICONDUCTOR CORP |
| 元件分類： | VCXO, clock |
| 英文描述： | VCXO, CLOCK, 27 MHz, CMOS OUTPUT |
| 封裝： | LEAD FREE PACKAGE-8 |
| 文件頁數(shù)： | 1/6頁 |
| 文件大小： | 157K |
| 代理商： | PT7V4027WE |
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PT0147(3/05)
Ver: 4
1
Data Sheet
PT7V4027 VCXO
Product Features
3.3V or 5V operating voltage
Uses an inexpensive external crystal
Provide clock output enable
On-chip VCXO with pull range of 240ppm
VCXO tuning voltage from 0 to Vcc
10mA output driver at CMOS levels (3.3V Vcc)
Available in SOIC package and die form
Ordering Information
Ordering code
Package type
Operating
Range
PT7V4027W
8-Pin SOIC
Industrial
PT7V4027WE
8-Pin SOIC lead free
Industrial
PT7V4027DE
Die Form
Industrial
Logic Block Diagram
Pin Configuration
Pin Description
Pin
Number
Pin Name
Type
Description
1, 8
X1, X2
I
Crystal Connection, Connect to a pullable 27MHz crystal
2
NC
No Connect, Can be float or connected to VCC or GND
3
VIN
I
Voltage Input to VCXO
4
GND
PWR
Ground
5
CLKOUT
O
Clock Output
6
VCC
PWR
Power Supply +3.3V or 5V
7
OE
I
Output Enable. High or floating enables output. Internal pull-up.
General Description
The PT7V4027 is a low-cost, high-performance VCXO,
designed to replace expensive VCXO modules. The on-chip
voltage causes clocks to vary by ±120ppm.
It uses an
inexpensive external pullable crystal at 27MHz to
produce the same output frequency.
Applications
Set-Top Box
xDSL
OE
1
2
3
4
5
6
7
8
X1
VIN
GND
NC
X2
OE
Vcc
CLKOUT
PT7V4027
SOIC 8 package
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