uPD2814, uPD2816, HD42853, KM5624 PLL Integrated Circuits

Overview

This 27 MHz band, 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 ROM programmable divide-by-N counter. The ROM-table is programmed from factory to 40 channels CEPT.

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	Decription
1	P1	Binary programable input 1
2	P2	Binary programable input 2
3	P3	Binary programable input 3
4	P4	Binary programable input 4
5	P5	Binary programable input 5
6	P6	Binary programable input 6
7	T	Divided by 2 input
8	Q	Divided by 2 output
9	T/R	Transmit=LOW Receive=HIGH
10	1/2R	Referency frequency divided by 2
11	VDD	Positive Power Supply (+5Volt)
12	RO	Referency oscillator Output (X-tal)
13	RI	Referency oscillator Input (X-tal)
14	RB	Reference Oscillator Output (Buffered)
15	LD	Loop Detector output
16	VDD	Positive Power Supply (+5Volt)
17	PD	Phase Detector output
18	AI	Loop filter Amplifier Input
19	AO	Loop filter Amplifier Output
20	FS	Function Select - HIGH=10kHz step LOW=5kHz step
21	GND	Ground
22	FIN	VCO Oscillator Input

ROM Code Table

Channel	P6	P5	P4	P3	P2	P1
01	0	0	0	0	0	1
02	0	0	0	0	1	0
03	0	0	0	0	1	1
04	0	0	0	1	0	0
05	0	0	0	1	0	1
06	0	0	0	1	1	0
07	0	0	0	1	1	1
08	0	0	1	0	0	0
09	0	0	1	0	0	1
10	0	1	0	0	0	0
11	0	1	0	0	0	1
12	0	1	0	0	1	0
13	0	1	0	0	1	1
14	0	1	0	1	0	0
15	0	1	0	1	0	1
16	0	1	0	1	1	0
17	0	1	0	1	1	1
18	0	1	1	0	0	0
19	0	1	1	0	0	1
20	1	0	0	0	0	0
21	1	0	0	0	0	1
22	1	0	0	0	1	0
23	1	0	0	0	1	1
24	1	0	0	1	0	0
25	1	0	0	1	0	1
26	1	0	0	1	1	0
27	1	0	0	1	1	1
28	1	0	1	0	0	0
29	1	0	1	0	0	1
30	1	1	0	0	0	0
31	1	1	0	0	0	1
32	1	1	0	0	1	0
33	1	1	0	0	1	1
34	1	1	0	1	0	0
35	1	1	0	1	0	1
36	1	1	0	1	1	0
37	1	1	0	1	1	1
38	1	1	1	0	0	0
39	1	1	1	0	0	1
40	0	0	0	0	0	0

Explanation of pin function terms

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Channel	P6	P5	P4	P3	P2	P1
01	0	0	0	0	0	1
02	0	0	0	0	1	0
03	0	0	0	0	1	1
04	0	0	0	1	0	0
05	0	0	0	1	0	1
06	0	0	0	1	1	0
07	0	0	0	1	1	1
08	0	0	1	0	0	0
09	0	0	1	0	0	1
10	0	1	0	0	0	0
11	0	1	0	0	0	1
12	0	1	0	0	1	0
13	0	1	0	0	1	1
14	0	1	0	1	0	0
15	0	1	0	1	0	1
16	0	1	0	1	1	0
17	0	1	0	1	1	1
18	0	1	1	0	0	0
19	0	1	1	0	0	1
20	1	0	0	0	0	0
21	1	0	0	0	0	1
22	1	0	0	0	1	0
23	1	0	0	0	1	1
24	1	0	0	1	0	0
25	1	0	0	1	0	1
26	1	0	0	1	1	0
27	1	0	0	1	1	1
28	1	0	1	0	0	0
29	1	0	1	0	0	1
30	1	1	0	0	0	0
31	1	1	0	0	0	1
32	1	1	0	0	1	0
33	1	1	0	0	1	1
34	1	1	0	1	0	0
35	1	1	0	1	0	1
36	1	1	0	1	1	0
37	1	1	0	1	1	1
38	1	1	1	0	0	0
39	1	1	1	0	0	1
40	0	0	0	0	0	0

Channel	P6	P5	P4	P3	P2	P1
01	0	0	0	0	0	1
02	0	0	0	0	1	0
03	0	0	0	0	1	1
04	0	0	0	1	0	0
05	0	0	0	1	0	1
06	0	0	0	1	1	0
07	0	0	0	1	1	1
08	0	0	1	0	0	0
09	0	0	1	0	0	1
10	0	1	0	0	0	0
11	0	1	0	0	0	1
12	0	1	0	0	1	0
13	0	1	0	0	1	1
14	0	1	0	1	0	0
15	0	1	0	1	0	1
16	0	1	0	1	1	0
17	0	1	0	1	1	1
18	0	1	1	0	0	0
19	0	1	1	0	0	1
20	1	0	0	0	0	0
21	1	0	0	0	0	1
22	1	0	0	0	1	0
23	1	0	0	0	1	1
24	1	0	0	1	0	0
25	1	0	0	1	0	1
26	1	0	0	1	1	0
27	1	0	0	1	1	1
28	1	0	1	0	0	0
29	1	0	1	0	0	1
30	1	1	0	0	0	0
31	1	1	0	0	0	1
32	1	1	0	0	1	0
33	1	1	0	0	1	1
34	1	1	0	1	0	0
35	1	1	0	1	0	1
36	1	1	0	1	1	0
37	1	1	0	1	1	1
38	1	1	1	0	0	0
39	1	1	1	0	0	1
40	0	0	0	0	0	0

Channel	P6	P5	P4	P3	P2	P1
01	0	0	0	0	0	1
02	0	0	0	0	1	0
03	0	0	0	0	1	1
04	0	0	0	1	0	0
05	0	0	0	1	0	1
06	0	0	0	1	1	0
07	0	0	0	1	1	1
08	0	0	1	0	0	0
09	0	0	1	0	0	1
10	0	1	0	0	0	0
11	0	1	0	0	0	1
12	0	1	0	0	1	0
13	0	1	0	0	1	1
14	0	1	0	1	0	0
15	0	1	0	1	0	1
16	0	1	0	1	1	0
17	0	1	0	1	1	1
18	0	1	1	0	0	0
19	0	1	1	0	0	1
20	1	0	0	0	0	0
21	1	0	0	0	0	1
22	1	0	0	0	1	0
23	1	0	0	0	1	1
24	1	0	0	1	0	0
25	1	0	0	1	0	1
26	1	0	0	1	1	0
27	1	0	0	1	1	1
28	1	0	1	0	0	0
29	1	0	1	0	0	1
30	1	1	0	0	0	0
31	1	1	0	0	0	1
32	1	1	0	0	1	0
33	1	1	0	0	1	1
34	1	1	0	1	0	0
35	1	1	0	1	0	1
36	1	1	0	1	1	0
37	1	1	0	1	1	1
38	1	1	1	0	0	0
39	1	1	1	0	0	1
40	0	0	0	0	0	0