PT7V2727 Datasheet, PDF (1/5 Pages) List of Unclassifed Manufacturers – 3.3v/5.0v operating voltage

Preliminary Data Sheet
PT7V2727/3727 VCXO
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Product Features
General Description
• 3.3v/5.0v operating voltage
• Uses an inexpensive external crystal
• On-chip VCXO with pull range of 240ppm
• VCXO tuning voltage from 0 to 3.3V
• 10mA output driver at CMOS levels
• Available in SOIC package
Ordering Information
Ordering
code
PT7V2727W
PT7V3727W
Package
type
8-Pin SOIC
8-Pin SOIC
Operating
Range
Industrial
Industrial
The PT7V2727/3727 are low-cost, high-performance 3.3V/5.0v
VCXO, designed to replace expensive VCXO modules.
The on-chip voltage causes clocks to vary by ±120ppm.
They use an inexpensive external pullable crystal at
27MHz to produce the same output frequency.
Applications
z Set-Top Box
z xDSL
Logic Block Diagram
Pin Configuration
X1
NC
VIN
GND
1
8
2 _PT7V2727 7
3
6
4
5
SOIC 8 package
X2
NC
Vcc
CLKOUT
X1
Vcc
VIN
GND
1
8
2 _PT7V3727 7
3
6
4
5
SOIC 8 package
X2
GND
NC
CLKOUT
Pin Description
Pin Number
2727
3727
1, 8
1, 8
2, 7
6
3
3
4
4, 7
5
5
6
2
PT0173(05/04)
Pin Name
X1, X2
NC
V_IN
GND
CLKOUT
V_CC
Type
I
I
PWR
O
PWR
Description
Crystal Connection, Connect to a pullable 27MHz crystal
No Connect, Can be float or connected to V_CC or GND
Voltage Input to VCXO
Ground
Clock Output
Power Supply +3.3v/5.0v
Ver: 0
1