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Document type:
Title:
User's Manual (MUT)
N1145 Quad Scaler and Preset Counter/Timer
2.4. Technical specification table
Packaging
Inputs
Control
inputs
Control
outputs
Max.
frequency
1
is 2.2 ns when GATE + CLEAR mode (see § 3.1) is used.
FWHM
NPO:
00115/01:N1145.MUTx/00
Table 2.1: Mod. N1145 Technical Features
1 NIM/TTL level input per section,
min. FWHM: 2 ns
1 NIM/TTL input,
Comm. Reset
min. FWHM: 3 ns
Section 1 and 3: 2 bridged high-impedance NIM/TTL inputs
Gate
Section 2 and 4:
1 NIM/TTL input, loads counter with value set on thumb-wheel
Load
switches, min. FWHM: 3 ns
std. NIM level; two sections can be cascaded by feeding first
Carry
CARRY into the input of the second section, thereby making a
(Section 2 and 4)
16-digit counter
1 NIM output; a pulse is generated when the counter reaches
End marker
zero. Pulse width can be adjusted by turning the front panel
trimmer (50 ns to 1 µs)
2 NIM outputs; are true as long as counter's value differs from
Out
zero
Sections 1 to 4
Section 5
Filename:
N1145_REV0.doc
Revision date:
05/11/2003
Two units wide NIM module
50 Ω impedance;
1
(sections 1 ÷ 4), 3 ns (section 5)
50 Ω
impedance; clears sections from 1 to 4,
50 Ω
impedance NIM/TTL input
250 MHz
80 MHz
Number of pages:
14
Re vision:
0
Page:
8
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