PLL02A

PLL Frequency Synthesizer

Overview

This PLL-circuit use a 8 bit BCD binary programmable divide-by-N counter.

Down-converting of the frequency to the divider

This PLL Circuit use a Mixer and a X-Tal Oscillator to convert the output frequency f _OUT to the f _IN to the PLL Circuit.
The X-Tal frequency is f _XTAL = f _OUT - f _IN



The output frequency can be changed by changing the mixing-xtal or add a new mixing-xtal to the oscillator.

Pin	Name	Description
1	VDD	Positive Power Supply
2	F in	VCO Oscillator Input
3	RI	Reference Oscillator Input (10.240MHz)
4	FS	HIGH=10kHz - LOW=5kHz
5	PD	VCO Voltage Out
6	LD	Loop Detected - HIGH=Locked LOW=Unlocked
7	P out	Prog. OUT
8	P7	Programmable input (Binary)
9	P6	Programmable input (Binary)
10	P5	Programmable input (Binary)
11	P6	Programmable input (Binary)
12	P3	Programmable input (Binary)
13	P2	Programmable input (Binary)
14	P1	Programmable input (Binary)
15	P0	Programmable input (Binary)
16	Vss	Ground

Explanation of pin function terms

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