V993B User Manual
Contents
1. 00114 00 V993x MUTx 03 V993B_REV3 DOC 10 Document type Title User s Manual MUT Mod V993 B Dual Timer WSET Revision date Revision 03 03 2004 3 TTL 50 ns to 10 s wide 4 5 ns rise fall time Fan Out of 2 on LEMO 00 type connectors ECL 2 ns to 10 s wide 2 ns rise fall time male pin couple Function Negated output pulse Signal features 0 to 5 V DC input on LEMO 00 type connector 1 kQ input impedance Function It allows to perform the output pulse fine adjustment via an external voltage 0 V short pulse 5 V long pulse N B WSET must never exceed the 5 V value in order to avoid damage to the input stage 2 5 Other components OPERATION LEDS 2 green red LEDs see 3 5 WSET FINE ADJUSTMENT Two 2 position switches see 3 3 COARSE ADJUSTMENT FINE ADJUSTMENT Two 9 position rotary switches see 3 3 Two rotary handles see 3 3 2 6 Technical specifications table Table 2 2 Mod V993 B Technical Features Packaging 1U wide VME unit Output See D I Output width 50 ns 10 s NIM TTL and ECL levels WSET 0 5V START OUT delay lt 25 ns RESET delay 30 ns the timing cycle stops 30 ns after the RESET pulse is sent Rise Fall Time lt 2ns Thermal stability 60 ppm C gt NIM outputs drive a 50 termination not required Q load termination required ECL outputs drive a 110 Q load Measured with a 1 us NIM output pulse2. 1 ms full scale NPO Filename Number of pages Page 8 00114 00 V993x MUTx 03 V993B_REV3 DOC 10 Document type Title Revision date Revision User s Manual MUT Mod V993 B Dual Timer 03 03 2004 3 3 Operating Modes 3 1 Installation The V993 B board is provided with the P1 connector only so it is suitable for both standard VME 6U and VME V430 crates ZA CAUTION ECL INPUTS ARE SUSCEPTIBLE TO DAMAGE FROM ESD ELECTROSTATIC DISCHARGE TO PREVENT THE RISK OF DAMAGING THE USER SHOULD NEUTRALIZE ANY STATIC ELECTRIC CHARGE BUILT UP ON THE BODY e g TOUCHING AN EARTHED OBJECT BEFORE HANDLING THE ECL CONNECTORS CAUTION ALL CABLES MUST BE REMOVED FROM THE FRONT PANEL BEFORE EXTRACTING THE BOARD FROM THE CRATE 3 2 Timer triggering The board has two sections housing one triggered pulse generator each Each section produces an adjustable width pulse when triggered The trigger START signal can be sent as external NIW ECL signal on the relevant START connectors or by pulling towards right the START RESET switch see 2 4 Note that output pulses are not retriggerable the START signal switch is inactive as long as the output status is true NPO Filename 00114 00 V993x MUTx 03 Number of pages V993B REV3 DOC Page 10 9 Document type Title Revision date Revision User s Manual MUT Mod V993 B Dual Timer 03 03 2004 3 3 3 Output width adjustment 3 4 3 5 NP
3. eee e e edd oes 8 2 6 TECHNICAL SPECIFICATIONS TABLE eee eene nennen nnne eset ese ese ese ese s ese esses eset eset eset esse esee 8 3 OPERATING MODES O 9 3 15 SENSTAEPATION 5 5 pa tok ate ht ZR WNE z ina k a batas au Bae AE 9 3 2 TIMER TRIGGERING eis eerie Rn iate AR OJ a a e aD REE 9 3 3 OUTPUT WIDTH ADJUSTMENTI 10 34 OUTPUTLLEVELSEEECTION te t eere E eee o ee ree he E hd 10 3 5 sese sese sese esee eset essen 10 FIG 2 1 MODEL V993 B FRONT PANEL L ua au u qua esee esas etes stesse 6 2 1 POWER REQUIREMENTS EA PU E PLANNER FE EHE EO PE Xe Eve RES ERE 5 TABLE 2 2 V993 B TECHNICAL FEATURES sss ese ese esee sess eset esee 8 NPO Filename Number of pages Page 00114 00 V993x MUTx 03 V993B_REV3 DOC 10 3 Document type Title Revision date Revision User s Manual MUT Mod V993 B Dual Timer 03 03 2004 3 1 Module description 1 1 NPO Overview The Model V993 B Dual Timer is a 1 unit VME module housing two identical triggered pulse generators The module produces NIM TTL and ECL
4. O Each section has a 9 position rotary switch for performing the COARSE ADJUSTMENT see 2 5 Actually this switch allows to choose between nine width ranges 50 ns 1 Us 1 us 10 us 10 us 0 1 ms 0 1 ms 1 1 10 10 ms 0 1 s 0 15 15 15 10 5 oo Flip Flop Actually the 9 position co lets the module work as a Flip Flop the output is kept active unless a Reset occurs Once the COARSE ADJUSTMENT is set the FINE ADJUSTMENT must be performed either by turning the relevant rotary handle or by supplying the WSET connector with a DC voltage ranging from 0 to 5 Volts the WSET FINE ADJUSTMENT SWITCH allows to select between the two ways Left gt WSET Right gt Rotary Handle see 2 5 Output level selection Two dip switches one per section named SW4 and SW8 respectively allow to produce either NIM or TTL pulses on the LEMO 00 output connectors The switches setting is Dot NOT visible NIM Dot visible TTL Such swithces are placed on the printed board close to the front panel ECL output pulses are produced in any case on the relevant male pins LEDs operation The front panel LEDs are OFF when no output is present they light up following the output with widths larger than 0 5 s they light up for a fixed time 0 5 s with output pulses shorter than 0 5 s They flash at a constant frequency x2 Hz with output frequencies higher than 2 Hz They light up red for NIM output pulses and gr
5. Technical Information Manual Revision n 3 3 March 2004 MOD V993 DUAL TIMER MANUAL REV 3 NPO 00114 00 V993x MUTx 02 CAEN will repair or replace any product within the guarantee period if the Guarantor declares that the product is defective due to workmanship or materials and has not been caused by mishandling negligence on behalf of the User accident or any abnormal conditions or operations CAEN declines all responsibility for damages or injuries caused by an improper use of the Modules due to negligence on behalf of the User It is strongly recommended to read thoroughly the CAEN User s Manual before any kind of operation CE CAEN reserves the right to change partially or entirely the contents of this Manual at any time and without giving any notice Document type Title Revision date Revision User s Manual MUT Mod V993 B Dual Timer 03 03 2004 3 1 MODULE DESCRIPTION p 4 ld a ni Z NE ee rn o EUR He nA ka ESA 4 2 TECHNICAL SPECIFICATIONS issssssiscsscssssscssssesssssevesnssesacesseeusssssvecesosseccd sesacosscustesesasessececesssessessssoeses 5 2 1 PACKAGINGE HEEL 5 2 2 POWER REQUIREMENTS U T enne SQ usut nette assesses E asuy kas 5 2 3 BRONTPANEL ieanuehpuceeweneacteeudenuteBwesepn pue uai EE Uer 6 24 SIGNALS FEATURES tete re tr ete i ee Rare R uec Bete 7 2 9 OTHER COMPONENTS unse e e oe A RO O ec eec ec
6. ckaging The Model V993 B is housed in a 6U high 1U wide VME unit The board hosts the VME P1 connector 2 2 Power requirements The power requirements of the versions available for the V993 B module are as follows Table 2 1 Power requirements 5 V 23A 12 V 60 mA 12 V 300 mA NPO Filename Number of pages Page 00114 00 V993x MUTx 03 V993B_REV3 DOC 5 10 Revision date Revision Document type Title User s Manual MUT Mod V993 B Dual Timer 03 03 2004 3 2 3 Front panel Mod V993 START VETO COARSE e e ADJUSTMENT on doe t WSET FINE ADJUSTMENT SWITCH FINE ADJUSTMENT RESET START SWITCH SHH O om oc2mm ges SSS g U BB gt El a 5 a i 1 __ VETO RESET ENDM OUT JOUT i E DUAL TIMER Fig 2 1 Model V993 B front panel NPO Filename Number of pages Page 10 6 00114 00 V993x MUTx 03 V993B_REV3 DOC Document type Title User s Manual MUT Mod V993 B Dual Timer 2 4 Signals features START INPUT VETO INPUT RESET INPUT ENDM OUTPUT OUT OUT Revision date Revision 03 03 2004 3 Signal features NIM Leading edge sensitive 2 5 ns minimum FWHM on LEMO 00 type connector TTL Leading edge sensitive 1 5 ns minimum FWHM on LEMO 00 type connector ECL Leading edge sensitive 2 5 ns minimum FWHM on a male pin co
7. een for TTL ones Filename Number of pages Page 00114 00 V993x MUTx 03 V993B_REV3 DOC 10 10
8. pulses whose width ranges from 50 ns to 10 s when triggered Output pulses are provided normal OUT and negated OUT Timers can be re triggered with the end marker signal The coarse adjustment of the output width is provided via a 9 position rotary switch the fine adjustment can be performed via either a rotary handle or by providing an external voltage WSET The trigger START can be provided via either an external signal NIM TTL or ECL or manually via a front panel switch START RESET switch The VETO input NIM TTL or ECL TRUE level allows to disable the START operation The ENDM output NIM TTL or ECL is a short pulse produced at the end of any timing cycle The RESET input NIM TTL or ECL ends the timing cycle at any time RESET can also be provided manually via a front panel switch START RESET switch See 2 4 for details about signals The module features LEMO 00 connectors for WSET and NIM TTL signals and male pin couples for ECL signals Two front panel LEDs display when the module is operating The board is equipped with the P1 connector Two internal switches allow to select between NIM and TTL output pulses while input levels are automatically recognised no selection is required Filename Number of pages Page 4 00114 00 V993x MUTx 03 V993B_REV3 DOC 10 Document type Title Revision date Revision User s Manual MUT Mod V993 B Dual Timer 03 03 2004 3 2 Technical specifications 2 1 Pa
9. uple START RESET Switch Momentary switch for single cycle operation Function Timer triggering signal Signal features NIM TTL TRUE level within 2 ns of START leading edge on LEMO 00 type connector ECL TRUE level within 2 ns of START leading edge on a male pin couple Function It disables triggering Signal features NIM TTL Leading edge sensitive 3 ns minimum FWHM on LEMO 00 type connector ECL Leading edge sensitive 3 ns minimum FWHM on a male pin couple START RESET Switch Momentary switch Function It stops the timing cycle at any time After a RESET the module is at rest until the next START Signal features NIM 8 ns wide on LEMO 00 type connector TTL 10 ns wide on LEMO 00 type connector ECL 8 ns wide on a male pin couple Function It marks the end of the timing cycle Signal features NIM 50 ns to 10 s wide 2 ns rise fall time Fan Out of 2 on LEMO 00 type connectors TTL 50 ns to 10 s wide 4 5 ns rise fall time Fan Out of 2 on LEMO 00 type connectors ECL 50 ns to 10 s wide 2 ns rise fall time male pin couple Function Output pulse Signal features NIM 50 ns to 10 s wide 2 ns rise fall time Fan Out of 2 on LEMO 00 type connectors ECL inputs are 110 Q terminated all NIM TTL inputs are 50 Q terminated START and RESET share the same 3 position switch Left RESET Middle gt NEUTRAL stable Right gt START NPO Filename Number of pages Page 7
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