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V1495

General Purpose VME Board
The Mod. V1495 is a VME 6U board, 1U wide, suitable for various digital Gate/Trigger/Translator/Buffer/Test applications, which can be directly customised by the User, and whose management is handled by two FPGA. The first one is the FPGA "Bridge", used for the VME interface and for the connection between the VME and the 2nd FPGA (FPGA "User") through a proprietary local bus. The FPGA "Bridge" manages also the programming via VME of the FPGA "User".

The FPGA "User" (Cyclone EP1C20) manages the front panel I/O channels and is substantially an empty FPGA. It is available to be programmed by the User according to the desired logic function. The I/O channel digital interface is composed by four sections placed on the motherboard. The channel interface can be freely expanded by adding up to three independent mezzanine boards, choosing between the five available types.

  • A395A 32 LVDS/ECL/PECL input channels
  • A395B 32 LVDS output channels
  • A395C 32 ECL output channels
  • A395D 8 NIM/TTL input/output channels
  • A395E 8 Analog output 16bit channels NEW!
Therefore, the Mod. V1495 can achieve a maximum number of 194 I/O channels.

A Mounting Option is necessary in order to install three A395C on the V1495 (see Ordering Options).

The FPGA "User" can be programmed "on the fly" via VME, without any external hardware tools, without disconnecting the board from the set up, and without resetting it or turning the crate off. A flash memory on the board stores the programming file, which can be loaded to the FPGA "User" at any moment. Four (independent, digital, programmable, asynchronous, chainable) timers, are available for Gate/Trigger applications.

The unit is supported by some free "FPGA demo firmwares", but custom applications can be developed as well.

The unit is supported by the following firmwares:
  • Five free "User FPGA Demo firmwares"
  • Multievent scaler firmware (Mod. FW1495SC )

FW1495SC is a FPGA firmware that allows to use the Mod. V1495 as a Multievent latching scaler housing up to 128 independent counting channels (this maximum number of channels is achieved if the V1495 is expanded with two A395A boards).

The Mod. V1495 has been developed in the framework of the european project EURITRACK, which belongs to the Sixth Framework Programme (FP6).
Output channels LVDS 100ohm Rl
Bidirectional (I/O) channels NIM/TTL selectable 50ohm Rt
Input bandwidth 200 MHz
I/O delay < 15 ns (in buffer mode)
VME interface Addressing: A24, A32
Data Transfer: D16, D32, BLT32, BLT64
Geographical addressing
Multicast commands
Packaging 6U-high, 1U-wide VME unit


Direction Input
Logic Direct
Signal LVDS/ECL/PECL(single ended TTL optional)110ohm Rt. Extended Common Mode input range -4V to +5V; Fail Safe input feature.
Bandwidth 200MHz
Front panel connector Robinson Nugent P50E-068-P1-SR1-TG type, (34+34) pins


Direction Output
Logic Direct
Signal LVDS 100ohm Rl
Bandwidth 250MHz
Front panel connector Robinson Nugent P50E-068-P1-SR1-TG type, (34+34) pins


Direction Output
Logic Direct
Signal ECL
Bandwidth 300MHz
Front panel connector Robinson Nugent P50E-068-P1-SR1-TG type, (34+34) pins
WARNING! A "Mounting Option" is necessary in order to install three A395C on the V1495 (see Ordering Options)


Direction I/O selectable
Logic TTL IN=Direct
TTL OUT=Direct
NIM IN=Invert
NIM OUT=Direct
Signal NIM/TTL selectable 50ohm Rt
Bandwidth 250MHz
Front panel connector LEMO 00


Direction Output
Logic Analog
Range ±5V @10kΩ RL
±4V @200Ω RL
Resolution 16bit
Front panel connector LEMO 00
v1495 general purpose vme board
input channels64 LVDS/ECL/PECL110ohm Rt. Extended Common Mode input range -4V to +5V; Fail Safe input feature.
a395a piggyback board
no. of channels32
a395b piggyback board
no. of channels32
a395c piggyback board
no. of channels32
a395d piggyback board
no. of channels8
a395e piggyback board
no. of channels8
Description Release Date OS-Version Environment Download
Firmware
Firmware   V1495 DAC demo firmware (demo3) 1.0 Jun, 2010
FW Package (Demo3) 822.12 KB - Type: .zip Download
Firmware   V1495 gate & delay generator demo firmware 1.0 Jun, 2010
FW Package (Demo4) 521.41 KB - Type: .zip Download
Firmware   V1495 gate pattern demo firmware 1.0 Jun, 2010
FW Package 290.59 KB - Type: .zip Download
Firmware   V1495 pattern recorder demo firmware 1.0 Jun, 2010
FW Package 514.91 KB - Type: .zip Download
Firmware   V1495 User Demo Firmware 2.0 Jul, 2010
Release Notes 2.76 KB - Type: .txt Download
FW Package 85.21 KB - Type: .zip Download
Firmware   V1495 VME FPGA Firmware 1.7 January, 2017
Release Notes 4.09 KB - Type: .txt Download
FW Package 81.18 KB - Type: .rbf Download

Related Models
Family Name Description
VME FW1495SC 128 Ch 200 MHz Multievent latching Scaler Firmware for V1495
Software Libraries CAENComm Library Interface library for CAEN Data Acquistion Modules
Digitizer Software CAENUpgrader Firmware Upgrade Tool for Front-end Boards Bridges & VME Power Supply

Code Description
WV1495XAAAAA DISCONTINUED | V1495 - General Purpose VME Board
WA395XAAAAAA A395A - 32 LVDS/ECL/PECL input channelsinterface for V1495 and V2495
WA395XBAAAAA A395B - 32 LVDS output channelsinterface for V1495 and V2495
WA395XCAAAAA A395C - 32 ECL output channelsinterface for V1495 and V2495
WA395XDAAAAA A395D - 8 NIM/TTL input/output channelsinterface for V1495 and V2495
WA395XEAAAAA A395E - 8 channel 16Bit ±5V DACfor V1495 and V2495
WPERS0149501 V1495 Customization - 3 A395C Mounting Option
Compare with other  Coincidence/Logic/Trigger Units  -  Translators  -  I/O Registers
Model Package Function Description Compare
All - Reset
N454 NIM Fan In - Fan Out Units 4-8 Logic FAN-IN/FAN-OUT
N625 NIM Fan In - Fan Out Units Quad Linear FAN-IN FAN-OUT
V1495 VME Fan In - Fan Out Units General Purpose VME Board
V2495 VME Fan In - Fan Out Units Programmable Logic Unit
V925 VME Fan In - Fan Out Units Quad Linear FAN-IN FAN-OUT
V976 VME Fan In - Fan Out Units Quad 4 Fold AND/OR/MAJ, NIM-TTL TTL-NIM Translator, Fan-In Fan-Out

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