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VT83205QX

Part Number	VT83205QX
Manufacturer	Vaishali Semiconductor
Description	3.3V Low Phase Noise VCXO Voltage-Controlled Crystal Oscillator and PLL Clock Synthesizer
Published	Apr 17, 2005
Detailed Description	VT83205 3.3V Low Phase Noise VCXO (Voltage-Controlled Crystal Oscillator) and PLL Clock Synthesizer Applications •= •= T...
Datasheet	VT83205QX PDF File

Overview

VT83205 3.
3V Low Phase Noise VCXO (Voltage-Controlled Crystal Oscillator) and PLL Clock Synthesizer Applications •= •= Telecom switching Set-top boxes •= •= HDTV MPEG Video clock source General Description The Vaishali VT83205 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 10 MHz to 14.
318 MHz, 30pF (pull range of 200 ppm) crystal input, in order to produce either one or two output clocks.
A 0 to 3V control signal is used to fine tune the output clock frequency in the ±100ppm range.
Select inputs SO:S2 are used for frequency and output selection.
Features •= •= •= •= 3.
3V supply operation Packaged in 16-pin SOIC & QSOP packages.
Replaces separate VCXO and multiplier Uses inexpensive pullable crystal •= •= •= On-chip VCXO with 200 ppm pull range (±100 ppm) 5V-tolerant control inputs Zero ppm synthesis error in both clocks Figure 1.
Functional Block Diagram VDD1 VDD2 VIN X2 ...

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