VT83027
Description
The Vaishali VT83027 is a single-chip, integrated VCXO and Phase Locked Loop (PLL) clock synthesizer. The device uses the VCXO and an analog Phase-Locked Loop (PLL) to accept a 13.5 MHz, 14 p F (pull range of 200 ppm) crystal input, and produce a 27 MHz output. A 0 to 3V control signal is used to fine tune the output clock frequency in the ±100ppm range.
Features
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- = 3.3V supply operation Low jitter PLL Clock Synthesizer
- = Zero ppm synthesis error Uses inexpensive pullable crystal
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±12m A drive capability
On-chip oscillator with 200 ppm pull range (±100 ppm) 8 pin SOIC package
Figure 1. Functional Block Diagram
Figure 2. Pin Configuration
VDD1
VDD2
VIN X2 13.5 MHz Pullable Crystal Load Cap Control Low Phase osc Noise PLL
X1 VDD1
Output Buffer CLK1
1 2 3 4
8 7 6 5
X2 GND1 VDD2 CLK
Load Caps
VIN GND2
8 pin (150 mil) SOIC
X1 GND1 GND2
2001-04-17 Vaishali Semiconductor
Page 1 .vaishali. 747 Camden Avenue, Suite C Campbell CA 95008
MDST-0003-...
