Document type:
Title:
Revision date:
Re vision:
User's Manual (MUT)
N1145 Quad Scaler and Preset Counter/Timer
05/11/2003
0
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Filename:
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00115/01:N1145.MUTx/00
N1145_REV0.doc
14
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1. General description
1.1. Overview
CAEN Mod. N1145 is a double unit NIM module that includes four independent 8-digit
up-counters, plus a fifth 7-digit down-counter that can be used either as a preset counter
or as timer.
The counters can perform different operations and can be variously interconnected,
thereby making the module a flexible and powerful tool for several applications involving
time, frequency and ratio measurements.
All counters can accept either TTL or NIM inputs. All control and output signals are
standard NIM. The maximum input frequency is 250 MHz and the minimum pulse width is
2 ns for the up-counters, and respectively 80 MHz and 3 ns for the down-counter.
All input and output connectors as well as all the control switches are located on the front
panel. All input and output connectors are LEMO 00 type.
