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REC86345 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.
PinNameDescription
1AFCAutomatic Frequency Control
2VccPositive Supply Voltage
3F inVCO Frequency Input
4RIReferency Oscillator Input
5ROReferency Oscillator Output
6FSLOW=10kHz - HIGH=5kHz
7APCAutomatic Phace Control
8LDLoop Detect - Unlocked=LOW Locked=HIGH
9P7Programmable input 7
10P6Programmable input 6
11P5Programmable input 5
12P4Programmable input 4
13P3Programmable input 3
14P2Programmable input 2
15P1Programmable input 1
16P1Programmable input 0
17GNDGround
18FIL


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