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VT73227 fiches techniques PDF

Vaishali Semiconductor - VCXO (Voltage-Controlled Crystal Oscillator) 27 MHz 3.3V

Numéro de référence VT73227
Description VCXO (Voltage-Controlled Crystal Oscillator) 27 MHz 3.3V
Fabricant Vaishali Semiconductor 
Logo Vaishali Semiconductor 





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VT73227 fiche technique
VT73227
VCXO
(Voltage-Controlled Crystal Oscillator)
27 MHz 3.3V
Applications
= Set-top boxes
= Telecom switching
= Oscillator replacement
= MPEG Video clock source
General Description
The Vaishali VT73227 is a single-chip, low-jitter Voltage-Controlled-Crystal-Oscillator. The device accepts
a 27 MHz, 20 pF (pull range of 200 ppm) crystal input, and produces a low jitter output at the same
frequency. A 0 to 3.0V control signal is used to fine tune the output clock frequency in the ±100ppm range.
Features
= 3.3V operating voltage
= Uses inexpensive pullable crystal
= 12mA drive capability at TTL levels
= On-chip oscillator with 200 ppm pull
range (±100 ppm)
= 8 pin SOIC package
Figure 1. Functional Block Diagram
VDD1
VDD2
VIN
X2
27 MHz
Pullable
Crystal
Load Cap Control
Load
Caps
Oscillator
X1
GND1
Output
Buffer
CLK1
GND2
2001-04-02
Page 1
MDST-0006-03
Vaishali Semiconductor 1300 White Oaks Road, Ste. 200 Campbell CA 95008 Ph. 408.377.6060 Fax 408.377.6063

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