M58472P PLL Frequency Synthesizer

Overview

This PLL frequency synthesizer LSI chip is designed specifically for CB transceivers. The integrated circuit`s incorporates PLL circuitry and a controller for CB applications on a single CMOS chip.
This PLL-circuit use a 6 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
1P4Programmable input 4
2P5Programmable input 5
3P6Programmable input 6
4F inVCO Frequency Input
5RIReferency oscillator Input
6NCNo Connection
7LDLoock Detector Output - Locked=LOW Unlocked=HIGH
8Connect to GND
9GNDGround
10FIL
11PDPhase Detector Output
12Connect to Vcc
13NCNo Connection
14PSPreset Select - HIGH=147+N LOW=102+N
15P1Programmable input 1
16P2Programmable input 2
17P3Programmable input 3
18VccPositive Supply Voltage

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