V738
16 Channel Multi-Standard Logic Level Translator and Fan-Out
Highlights
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16 channels: NIM, TTL, LVDS, ECL and PECL inputs converted to NIM, TTL or LVDS
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200 MHz maximum operating frequency
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Propagation delay 8 ÷ 12 ns, depending on the conversion path
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COMMON IN input with a fan-out of 16 NIM/TTL and 16 LVDS outputs, daisy-chainable
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x2 NIM output mode (32 mA) for passive split on two 50 Ω loads
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No software configuration: logic standards set through front panel switches
Overview
The CAEN V738 is a 1-unit wide VME module housing 16 multi-standard logic level translator and fan-out channels.
Each channel accepts a NIM, TTL, LVDS, ECL or PECL input signal and converts it to NIM, TTL or LVDS. The 16 single-ended inputs and outputs (NIM/TTL) are available on LEMO 00 connectors, while the 16 differential inputs (LVDS/ECL/PECL) and the 16 LVDS outputs share a 3M 17×4 pin header connector.
The logic standards are selected through the front panel switches: no software configuration is required. The x2NIM output mode doubles the NIM output current (32 mA), so that each output can be passively split on two 50 Ω loads.
The maximum operating frequency is 200 MHz, with propagation delays from 8 to 12 ns depending on the conversion path.
Two front panel bridged COMMON IN connectors accept a NIM or TTL signal, which allows the use of the module as a fan-out of 16 NIM/TTL and 16 LVDS signals. Daisy-chaining the COMMON connectors of consecutive modules extends the distribution, for an overall 1-to-32 fan-out.
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Image
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Name
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Package
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No. Of Sections
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Function
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Inputs per Section
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Outputs per Section
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I/O delay (ns)
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Input Bandwidth (MHz)
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In Conn.
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Out Conn.
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Coming Soon V738 |
VME |
1 |
NIM / TTL / LVDS / ECL / PECL to NIM / TTL / LVDS |
16 NIM / TTL + 16 LVDS / ECL / PECL |
16 NIM / TTL + 16 LVDS |
8 ÷ 12 |
200 |
LEMO / 3M Header 17×4 |
LEMO / 3M Header 17×4 |
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DT5495 |
Desktop |
1 |
Depending on board configuration |
64 ECL/PECL/LVDS +2 bidirectional NIM/TTL (expandable up to 162) |
32 LVDS+2 bidirectional NIM/TTL (expandable up to 130) |
n/a |
Section A/B: 200, Section C/D: 250 |
Robinson Nugent Flat/ LEMO |
Robinson Nugent Flat/ LEMO |
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N89 |
NIM |
2 |
NIM to TTL; TTL to NIM |
4 + 4 |
4 + 4 |
< 10 |
60 / 40 |
LEMO |
LEMO |
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V538A |
VME |
1 |
NIM to ECL/NIM; ECL to NIM/ECL |
8 NIM / 8 ECL |
2x8 NIM / 2x8 ECL |
< 3 |
300 |
LEMO / Std. Flat |
LEMO / Std. Flat |
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V2495 |
VME |
1 |
Depending on board configuration |
64 ECL/PECL/LVDS +2 bidirectional NIM/TTL (expandable up to 162) |
32 LVDS+2 bidirectional NIM/TTL (expandable up to 130) |
n/a |
Section A/B: 200, Section C/D: 250 |
Robinson Nugent Flat/ LEMO |
Robinson Nugent Flat/ LEMO |
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N638 |
NIM |
2 |
NIM to ECL/NIM; ECL to NIM/ECL |
8 NIM / 8 ECL |
2x8 NIM / 8 ECL |
< 3.5 |
300 |
LEMO / Std. Flat |
LEMO / Std. Flat |
Technical Specifications
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Packaging |
1-unit wide 6U VME module (VME and VME64X backplanes) |
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Inputs |
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Outputs |
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Max. frequency |
200 MHz |
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Min. pulse width |
2.5 ns on every input path |
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I/O delay |
Measured at 10 MHz:
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Configuration |
No software configuration: logic standards set through the front panel selectors |
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Power requirements |
+5 V, 2 A max |
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