MC145104 SM5104 MM55104 MN6040A 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	Vcc	Positive Supply Voltage
2	F in	VCO Frequency Input
3	RI	Referency Oscillator Input
4	RO	Referency Oscillator Output
5	FS	HIGH=10kHz - LOW=5kHz
6	PD	Phase Detector Output
7	LD	Loop Detect - Unlocked=LOW Locked=HIGH
8	P7	Programmable input 7
9	P6	Programmable input 6
10	P5	Programmable input 5
11	P4	Programmable input 4
12	P3	Programmable input 3
13	P2	Programmable input 2
14	P1	Programmable input 1
15	P1	Programmable input 0
16	GND	Ground
18	FIL

Explanation of pin function terms

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