TC9102 PLL Frequency Synthesizer


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.
1VccPositive Supply Voltage
2F inVCO Frequency Input
3RIReferency Oscillator Input
41/2 RReference OSC frequency divide by 2 output
5Connect to GND
6PDPhase Detector Output
7AIAmp. Input
8AOAmp. Output
9LDLoop Detect - Unlocked=LOW Locked=HIGH
10T/RTransmit=HIGH Receive=LOW
11P5Programmable input 5
12P4Programmable input 4
13P3Programmable input 3
14P2Programmable input 2
15P1Programmable input 1
16P1Programmable input 0

Explanation of pin function terms

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