PI6CX100-27 Datasheet, PDF (1/4 Pages) Pericom Semiconductor Corporation – 27 MHz 3.3V VCXO for Set-Top Box Applications

Features
• 3.3V 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 drive at CMOS levels
• Available in SOIC package
PI6CX100-27
27 MHz 3.3V VCXO for
Set-Top Box Applications
Description
The PI6CX100-27 is a low-cost, high-performance 3.3V VCXO,
designed to replace expensive VCXO modules. The on-chip
Voltage Controlled Crystal Oscillator accepts a 0 to 3.3V input
voltage to cause clocks to vary by ±120ppm. This device uses an
inexpensive external pullable crystal at 27 MHz to produce the
same output frequency.
The PI6CX100-27 is designed for Set-Top Box applications.
Block Diagram
V_IN
Voltage
Controlled
X1
Crystal
Oscillator
X2
Pin Configuration
Output
Buffer
CLKOUT
X1
NC
VIN
GND
1
8
2 ^8-Pin 7
W
3
6
4
5
X2
NC
VDD
CLKOUT
Pin Description
Pin Name
Number
X1, X2
1, 8
NC
2
V_IN
3
GND
4
CLKOUT
5
V_DD
6
Note:
1. 0.1µF or 0.01µF bypass capacitor is required.
Type
I
I
PWR
O
PWR
Description
Crystal Connection
No Connection
Voltage Input to VCXO
Ground
Clock Output
Power Supply⁽²⁾
1
PS8576C
09/22/04