This converter/decoder BCD to 16 is a simply but very powerful device. It decodes from BCD data input to 16 outputs. You can use it everywhere you have less wires than you need and also with BCD (TTL) output devices (like microHAM). You need only 4 wires and control up to 16 outputs. There is universal output driver. You can drive outputs by switching to GND or + Vcc (EXT) voltage. BCD inputs include RF and high voltage protection.

Jump to

Applications
Open collector device
BCD to 16
Schematic
PCB
Product details

Applications

Matrix table for inputs and outputs

Connection of control cables and power supply

- power supply input
- BCD input voltage 2.6 to 15 V DC

PTT hot switch protection

- you can use this PTT input as Hot Switch protection 
- active when LOW

Output voltage

- output voltage for TBD driver 
- +12 means supply voltage of BCD board
- EXT is external voltage - for relays with different voltage than 12 V (could be 5 or 24 V DC)

Output driver

- universal outputs - switching to GND or + voltage 
- easy to set by jumper
- easy to replace driver ULN (- out) / TBD (+ out)

Example with 6-to-1

- need four (five) wires between controller and BCD to 16 converter
- GND, (+12V) and three control wires
- output must be with TBD driver (+ out)

Example with PA BCD output

- compatible with OM-power amplifier Manual page 51 (ANT/BPF DB15) 
- need four (three) wires between controller and BCD to 16 converter
- GND, (+12V) and three control wires
- output must be with TBD driver (+ out)

Example with 6-to-2 and microHAM devices

- need four (three) wires between controller and BCD to 16 converter
- GND, (+12V) and three control wires
- output must be with TBD driver (+ out)

Open collector device

- devices with the open collector (like B26-PA RF2K-S) needs external pull up resistors

R-KIT.de PA with the open collector (like B26-PA RF2K-S) connection + enable BAND data output in PA

BCD to 16

Schematic

PCB