uPD2814

RETOUR SOMMAIRE DES COMPOSANTS

RETOUR

#
µPD2814 µPD2816 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

###
Explanation of pin function terms

##
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