Elmo Computer Hardware 1.1 User Manual

Potentiometer Format 

Single-ended 

Operating Voltage Range 

0 ~ 5 V supplied by the Guitar  

Potentiometer Resistance 

100 Ω ~ 1 kΩ … above this range, linearity is 
affected detrimentally 

Input Resistance 

100 kΩ 

Resolution 14 

bit 

Emulated output 
 

 A, B, Index 

 Single ended 

Output current capability 

Maximum output current: I

OH

 (max) = 2 mA  

High level output voltage: V

OH

 > 3.0 V 

Minimum output current: I

OL

 = 2 mA 

Low level output voltage: V

OL

 < 0.4 V 

Available as options 

 Emulated encoder outputs of analog encoder 

 Emulated encoder outputs of the resolver  

 Emulated encoder outputs of the tachometer 

 Emulated encoder outputs of the potentiometer 

Maximum frequency 

f

MAX

: 5 MHz pulses/output  

Edge separation between A & B 

 

Programmable number of clocks to allow adequate 
noise filtering at remote receiver of emulated 
encoder signals 

Index (marker): 

Length of pulse is one quadrature  (one quarter of 
an encoder cycle) and synchronized to A&B 

 

Guitar Installation Guide 

 

A-10