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doepfer

System A - 100

LOGIC

A-166

1. Introduction

Module A-166 is a dual logic device to combine digi-

tal control signals.

It contains

2 identical units

with

3 inputs

for each

unit. The logical states of the inputs ("1" = high / "0" =

low) are

linked

together in 3 ways:

AND, OR, EXOR

(exclusive OR).

The three functions are available simultaneously at

three outputs with LED display of the output states.

Additionally two inverters are avaliable to obtain the

inverted functions NAND, NOR

and

NEXOR

The

input sockets

of each triple unit are

"normalized", i.e. the switched contact of socket 2 is

connected to input 1 and the switched contact of

socket 3 is connected to input 2.

A typical application is the combination of digital

signals of the A-100 (gates, clocks, triggers), e.g. to

obtain

"gated" clocks

rhythmic clock patterns

A-166

Logic

Input 1

Input 2

Input 3

AND Output

OR Output

XOR Output

Input

INV Output

Summary of content (6 pages)

PAGE 1
System A - 100 doepfer LOGIC A-166 1. Introduction Module A-166 is a dual logic device to combine digital control signals. A-166 Logic Input 1 AND Output Input 2 OR Output Input 3 XOR Output It contains 2 identical units with 3 inputs for each unit. The logical states of the inputs ("1" = high / "0" = low) are linked together in 3 ways: AND, OR, EXOR (exclusive OR). The three functions are available simultaneously at three outputs with LED display of the output states.
PAGE 2
A-166 LOGIC System A - 100 doepfer Controls: 2.
PAGE 3
doepfer System A - 100 3. Controls 1 LEDs LOGIC A-166 Inputs Outputs 1 2 3 AND OR XOR NAND The LEDs display the logical state of the corresponding output (on = logical “1” / high, off = logical “0” / low). 0 0 0 0 0 0 0 0 1 0 1 1 0 1 0 0 1 4. In / Outputs 0 1 1 0 1 0 0 0 ! Input 1 • Input 2 • Input 3 1 0 1 The sockets Input 1, 2 and 3 are the common inputs of the logical functions AND, OR and XOR. The digital control signals that have to be linked (e.g.
PAGE 4
A-166 LOGIC System A - 100 " AND • OR • XOR These are the output sockets for the three logical functions. The output of each state depends upon the on the three inputs (refer to table 1). A logical “0” corresponds to about 0V (in every case less than +1V), “1” to +12V (at least +10V). § Input Socket § is the input of the inverter. $ INV Output At the inverter output $ the inverted signal of the inverter input § is available. A logical “0” at the input is converted to “1” and vice versa. doepfer 5.
PAGE 5
doepfer Fig. 1: System A - 100 Patch for generation of rhythmic clock signals A-160 Clock In Trig.
PAGE 6
A-166 LOGIC System A - 100 doepfer 6. Patch-Sheet The following diagrams of the module can help you recall your own Patches. They’re designed so that a complete 19” rack of modules will fit onto an A4 sheet of paper. Photocopy this page, and cut out the pictures of this and your other modules. You can then stick them onto another piece of paper, and create a diagram of your own system.