TC9102 PLL Frequency Synthesizer

Overview

This PLL-circuit use a 7 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	Vcc	Positive Supply Voltage
2	F in	VCO Frequency Input
3	RI	Referency Oscillator Input
4	1/2 R	Reference OSC frequency divide by 2 output
5		Connect to GND
6	PD	Phase Detector Output
7	AI	Amp. Input
8	AO	Amp. Output
9	LD	Loop Detect - Unlocked=LOW Locked=HIGH
10	T/R	Transmit=HIGH Receive=LOW
11	P5	Programmable input 5
12	P4	Programmable input 4
13	P3	Programmable input 3
14	P2	Programmable input 2
15	P1	Programmable input 1
16	P1	Programmable input 0
17	NC	No Connection
18	Vss	Ground

This counter shows the number of hits since the 29th January 2000

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