4-Side Scalable Silicon Photomultiplier Array Contents
Contents
1. R49 R51 R53 R55 A n A VhA O pa VA VV AA VI MA R GR 0805 1 8 R OR 0805 1 8U R OR 0805 1 8U R 2R 0305 1 8 XE Mte iy E E St E Sinn spmarray_v4_eval_revip PSA a aldo y 234 49 ER haa 2 j GN m DI e m RAI Figure 15 Positions of the jumpers for default configuration on Array4 EVB PixOut PCB SensL sense light ArraySM 4 Scalable Silicon Photomultiplier Array S e S L USER MANUAL sense light El mo Le 17 he E Fi EE a Bini ea 121 DAA E HL spmarray_v4_eval_rev1p0 SensL 2009 IF CO LE o TL 4 mi J d Ni a ts 4 B 4d Md ps7 GE pt 9 i 2 p E VOCE Vi T Es AT 3 tai ummmm RE ENS key Figure 16 Alternative jumper positions for positive output pulses are highlighted www sensl com sales sensl com S e l S E 353 21 240 7110 International 1 650 641 3278 North America sense light All specifications are subject to change without notice2. 16 AS A A PI o E o A 16 Po RR I in 17 El ES reece apes Sa pare eave pais eo e e reo non PA 18 PS Fare MO s 19 Setting Signal Output Polarity on the Array4 EVB PiXOUt i 19 ArraySM 4 Scalable Silicon Photomultiplier Array S e S L USER MANUAL sense light ArraySM 4 Product Overview SensL s Position Sensitive Multi Anode Silicon Photomultiplier Array ArraySM 4 is a large area detector based on silicon photomultiplier technology The 16 pixel ArraySM 4 is mounted onto a low profile ceramic package which allows 4 side tiling to allow ArraySM 4 to be scaled for larger area detection systems A non magnetic sensitive package has been developed using Ni free processing and materials with low magnetic susceptibility A 20 pin grid array PGA footprint is employed for electrical I O to a printed circuit board or to a standard test socket connector The pixel array is over molded with epoxy to completely encapsulate the pixels bond wires and substrate bond pads The pixel bias and readout configuration has been designed for both differential and single channel readout electronics The performance and specification characteristics of each pixel are the same as SensL s MicroSM 30085 products the datasheet can be found on the website The device is sensitive to visible light in the range of 400nm to 1000nm and suited to
3. 3 Connect measuring monitoring equipment e g oscilloscope to the SMA outputs of the evaluation board 4 Ensure the ArraySM 4 is not exposed to bright light conditions The detector is designed measure in low light conditions and exposure to bright light may lead to issues with the package overheating or bias voltage dropout due to the high current loading 5 Plug the AC mains adapter into the mains socket and then apply the 6V DC power output of the mains adapter to the PixOut board by inserting the jack connector 6 The ArraySM 4 is now ready to use In the case where the customer wishes to design their own back end electronics to connect to the preamplifier power should be provided to either the FFC cable or the Sherlock Connector J15 to run the preamplifier module and the bias regulator The use of impedance matched differential signal receivers is recommended especially if using cables of length in excess of one meter between the preamplifier and the user interface electronics Alternatively the customer may wish to supply power from external regulated bench supplies This gives the advantage of being able to directly control the bias to adjust the gain and the preamplifier supply to adjust the dynamic range of the detector array The procedure for set up in this case is as follows 1 Connect the ArraySM 4 to the socket on the PreAmp board Take normal ESD precautions when handling the detectors and electronics and use rubber gl
4. Figure 9 Saturation of the preamplifier by a large SPM signal when using 5V power using 1M 2 14pF oscilloscope probes File Control Setup Measure Analyze Utilities Help 2 04 PM Acquisition is stopped 4 00 GSa s 64 0 kpts H ENE olo 24 DES Figure 10 Saturation of the preamplifier by a large SPM signal when using 2 7V power using 1M 2 14pF oscilloscope probe ArraySM 4 Scalable Silicon Photomultiplier Array S e S L USER MANUAL sense light Preamplification Board FFC Cable Output Interface A 50 way 0 5mm pitch FH12 series FFC connector is used to interface the PreAmp board to the PixOut evaluation board or the customer s own electronics Figure 11 shows the schematic of the FFC connector on the PreAmp board Customers designing their own electronics to connect to the preamplifier FFC output should note that connections may need to be mirrored compared to the above schematic http www hirose co jp cataloge_hp e58605370 pdf Hirose part number FH12S 50S 0 5SH 55 DigiKey Part Number HFA150CT ND Table 4 FFC output connector pin descriptions Pin Number Description 3 Inverting differential outputs for channel 1 4 Non inverting differential outputs for channel 1 Inverting differential outputs for channel 2 Non inverting differential outputs for channel 2 Inverting differential outputs for channel 3 Non inverting differential outputs for channel 3 Inverting differential outputs for channel 4 Non
5. while C1 and R4 provide stability ringing suppression of the transient response Resistors R2 and R3 provide matching of the low output impedance of the preamplifier to the transmission line impedance thus providing reflection free operation Snapshots of the signals observed on the output of the preamplifier are shown in Figure 7 to Figure 10 The signal shape rise and fall time is primarily defined by the internal SPM RC type time constant At current gain settings defined by R1 and C1 feedback elements the preamplifier output saturates prior to SPM saturation on the output Each board has been factory programmed to the optimum bias voltage ArraySM 4 Scalable Silicon Photomultiplier Array S e S L USER MANUAL sense light Fie Control Setup Measure Analyze Utilities Help 2 14 PM Acquisition is stopped 4 00 GSa s 64 0 kpt ole ale 500 ng Figure 7 SPM dark noise viewed from the differential preamplifier using 1MQ 14pF probes File Control Setup Measure Analyze Utilities Help 2 06 PM Acquisition is stopped H ENE 4 00 GSass 64 0 kpts F4 00 vr 50 0 ns 221 3550 ns Figure 8 Short 12nSec blue LED pulse seen at the output of the differential preamplifier using 1M 14pF oscilloscope probes ArraySM 4 Scalable Silicon Photomultiplier Array S e S L USER MANUAL sense light Fie Control Setup Measure Analyze Acquisition is stopped 4 00 6 afs 64 0 kpts Utilities Help 2 10 PM 221 3990 ns
6. NOUT14 POUT14 NOUT15 POUT15 NOUT16 POUT16 ajos OPFOIOI A TWITNhMI Oo Input bias voltage to the regulator range 34V to 40V VBIAS_IN 100mA maximum ArraySM 4 Scalable Silicon Photomultiplier Array S e S L USER MANUAL sense light von veas 5 17 29 41 11 23 35 Negative supply voltage 3 3V default 400mA maximum ND la Ground power supply pins 38 44 47 50 P uds Monitor of voltage bias output from the regulator Positive supply voltage 3 3V default 9 4D0mA maxi mum ASS co OON V pa to U g l i AAA IAEA PELE ISS T2 V J1 J FH125 585 8 55H Led P4 Figure 11 FFC output connector J1 schematic for the PreAmp board Power Supply Options There are several options for supplying power to the ArraySM 4 and PreAmp board e Supply through the DF17 series board to board connector J4 The connector allows the PreAmp board to plug directly onto SensL s PixOut evaluation board which provides regulated power to this connector e Supply through the 50 way FFC cable from connector J1 The connector allows the PreAmp board to plug into SensL s PixOut evaluation board or customers own circuitry which provides regulated power via the FFC cable e Supply through the Sherlock connector J15 See Table 5 below for connection details ArraySM 4 Scalable Silicon Photomultiplier Array S e S L USER MANUAL sense light Table 5 Power supply c
7. Note Unpack the contents carefully and identify each of the components Normal ESD aware handling protocols should be observed ArraySM 4 Scalable Silicon Photomultiplier Array S e S L USER MANUAL sense light Figure 1 The complete Array4 product range showing detector Preamp board and the PixOut board HANDLING AND USE CONSIDERATIONS e he module is not intended for outdoor use e f a preamp board is provided with a given sensor it is not recommended that the user separate them The preamp board will have had its bias setting precisely optimized based on that sensor s breakdown Therefore if the preamp board is used with other sensors optimum performance cannot be guaranteed e The sensor and electronics should be kept away from liquids which if spilled on them could cause failure e Apply only the correct supply voltages and observe correct polarity Operational voltage is POSITIVE relative to the ground rail For example if an operating voltage of 29V is required then the voltage applied to V should be 29V bias Do not expose the sensor to extended periods of ambient light with biased applied To do so may cause failure of the device through excessive current draw e For optical coupling bonding directly to the clear epoxy surface is not recommended Optical surfaces should be held in place mechanically and optical coupling optimised using refractive index matching gel e These devices are ESD sensitive The fol
8. Oro 00 ArraySM 4 Scalable Silicon Photomultiplier Array S e S L USER MANUAL sense light ARRAY4 EVB PREAMP ODOOOOOOOOOOOOOOOOOOOOOO0OO0O000000 DOO0O0O0O0O0O0O00C0O00O0O0O0O0O0CcO00cO00O0O0000000O 00 00 00 00 OO 00 00 00 00 00 BB 00 00 00 00 00 D o o 15 3 O DO a 0 2 ArraySM 4 Scalable Silicon Photomultiplier Array USER MANUAL ARRAY4 EVB PIXOUT 4 122 0000 0000 000000 nooo nooo nooo cool O O ud O00 OO abl _ 130 _ 17 24 24 24 24 ls La a a a 1 bd E CN Py N LO ie Sel LI x i SensL sense light ArraySM 4 Scalable Silicon Photomultiplier Array S e S L USER MANUAL sense light Appendix A SETTING SIGNAL OUTPUT POLARITY ON THE ARRAY4 EVB PIXOUT The Array4 EVB PreAmp 16 channel preamplifier board for the ArraySM 4 is based on the AD8132 preamp and a single channel of the board is shown in Figure 13 The amplifier has two output signals per channel e Nout this produces a negative going output pulse e Pout this produces a positive going output pulse Figure 13 Single preamplification channel of the Array4 EVB PreAmp Both the Nout and Pout signals are connected to the Array4 EVB PixOut evaluation PCB By default the 16 output SMAs are connected to the Nout outputs of each ch
9. ArraySM 4 amp Electronics Boards The fastest way to evaluate the ArraySM 4 and PreAmp board is through the use of the PixOut evaluation and power supply board The system setup is shown in Figure 1 The PreAmp board plugs directly onto the PixOut board using an 80 way DF17 series board to board connection system The 80 way connector supplies power for the step down bias regulator and the amplifier chips on the PreAmp board The output signals are routed to SMA coaxial connectors on the PixOut board also via the 80 way connector The PixOut board also provides a summed output for all pixels A universal AC adapter provides 6V DC power to the PixOut board This is regulated to provide 3 3V for the preamplifier chips and 34V for the input to the bias regulator The procedure for setup is 1 Connect the ArraySM 4 to the socket on the PreAmp board Take normal ESD precautions when handling the detectors and electronics and use rubber gloves when inserting the array Apply pressure firmly and equally over the surface of the ArraySM 4 when inserting into the socket taking care not to put extra force on any particular pin as the pins are formed from soft copper material 2 Plug the PreAmp board into the PixOut evaluation board using the 80 way DF17 series board to board connection system The board should line up as shown in Figure 1 such that stand offs can be used to secure the preamplifier in place Do not attempt to insert at 180 degrees rotation
10. 4 pixels in a particular row of the array as shown in Figure 2 The signal connections from the back side anode contacts of the array are individually routed to the remaining 16 pins of the package Table 3 Description of signals on the ArraySM 4 package Cali Cau Cell T P20 CellD p Anode signal connection for CellD ARRAYSM 4 DETECTOR BIAS The array is designed for positive bias operation The typical breakdown voltage and operational range for the device is stated in Table 1 Please ensure that the operation voltage is POSITIVE relative to the ground rail For example if the operating voltage Vo is 29V then the voltage applied to Vbias should be 29V Table 3 details the bias connections required The pixel and pin layout are shown in Figure 2 amp Figure 3 respectively ArraySM 4 Scalable Silicon Photomultiplier Array S e S L USER MANUAL sense light ArraySM 4 Electronics The ArraySM 4 detector is offered with the option of custom supporting electronics a 16 channel preamplification board Array4 EVB PreAmp and an evaluation board for pixellated summed pixel output via SMA connector Array4 EVB PixOut ARRAY4 EVB PIXOUT EVALUATION BOARD FOR ARRAYSM 4 PIXEL SUMMED OUTPUTS The key features and benefits of the Array4 EVB PixOut evaluation board are as follows e Allows fast evaluation of ArraySM 4 and Array4 EVB PreAmp board e 16 individual SMA sockets for monitoring the pixel signal on an oscilloscope for exa
11. ArraySM 4 Scalable Silicon Photomultiplier Array S e S L USER MANUAL AS sense light 4 Side Scalable Silicon Photomultiplier Array SensL introduces its 16 pixel Silicon Photomultipler ArraySM It is based upon a 4x4 arrangement of 3mm SPM pixels which are mounted in a low profile ceramic package The ArraySM 4 permits close packing on all four sides allowing for a detection area that can be as large or small as required by the specific application It is the first commercially available detector of its kind and will be of particular interest to developers of imaging systems for PET gamma cameras nuclear hazard and threat detection and fluorescence measurements This User Manual summarizes the technical information relating to the ArraySM 4 detector and its supporting electronics and describes their performance and use Contents ArraySM 4 Product Overview C ea 2 Eu o qz o PRO RO o 2 Unpacking the System and Preparation for USG ii 2 Feet VC MAC ell tel SONI A E 3 Tecnica e 03 ana Upi lia 3 PRA OOH SDecilications alli ie 4 PRO Peer D Bco elo e Oo e EE en 6 e io e trees o ini era 6 o a pirate ea PA 7 ArrayA EVB PixOut Evaluation board for ArraySM 4 pixel summed OUTPUTS e T Array4 EVB Preamp 16 Channel Prearmpliicauor DOOR tii Td Setting Up the ArraySM 4 amp Electronics Boards iii 15 SCHEMAtHES iii X
12. Type Aumnamgos TTT Ceramic Co Bak Cerami Base 5o Ceramic Package See 1581x168 mm Cu Pin Grid Array Ceramic Package Height Includes ceramic base thickness Frame Height 1000 AI203 frame which surrounds tiled array Standard pin spacing sockets see www e tec co uk Part No PSC 520 E118 95 1 Epoxy Thickness Thickness coated over the surface of the die Epoxy Refractive Index 1 5918 MEA Measured at 589nm Transmission ArraySM 4 Scalable Silicon Photomultiplier Array S e S L sense light USER MANUAL PIXEL MAP amp PIN LOCATIONS 0 2 3 17 m 3 17 0 2 Figure 2 Top down view of the ArraySM 4 pixel layout 2 al ala 21 a 0 63 5 1531 15 81 Figure 3 Bottom pin side and side views of the ArraySM 4 detector package showing pin layout and naming ArraySM 4 Scalable Silicon Photomultiplier Array S e S L USER MANUAL sense light DETECTOR CONNECTIONS Table 3 details the ArraySM 4 package connections which should be used in conjunction with the pin locations shown in Figure 3 and pixel layout shown in Figure 2 The bias needs to be applied to 4 individual pins Each pin supplies the bias to the daisy chained cathode connections of the
13. VB PixOut evaluation board which allows access to each signal via SMA individually or the sum of all 16 pixel signals to simulate a large area detector A 0 0 ST iti PA q o o6 o o9 H o oi Hof o O z o pei oo 0 Ol 2 ims 13 6 99 r Oo 1 e 8 O Fo o ols o oi jui O fiib HO b 17 6 1320 I 1474 TOP SIDE VIEW DIMENSIONS IN MM SHERLOCK CONNECTOR J15 PIN 1 CENTRE OF HEADER J9 pmi PIN 1 HEADER AN o PIN 10 PIN 1 OF SPMARRAYI CENTRE OF J3 PAD COLUMN 45 422 PIN 4 HEADER J18 47 4 BETAS in se CENTRE or Ji PAD ROW PIN 4 r Figure 5 Top and bottom views of the preamplification board ArraySM 4 Scalable Silicon Photomultiplier Array S e S L USER MANUAL sense light Differential Preamplification The 16 channel PreAmp board uses fast charge sensitive integrating differential output preamplifiers The preamplifiers are implemented using Analog Device s AD8132 chips Differential signals allow the use of a compact FFC cable reducing channel to channel crosstalk and sensitivity to ground potential variations across the system compared with a single ended amplification system II C2 ig F HO w 447R 470 479 UIL U ARUB132ARM GND mu L H Dow 188n i GND Figure 6 Single channel preamplification schematic The preamplifier for each of the 16 channels is configured in transimpedance mode as shown in Figure 6 The gain is defined by R1
14. allowing this compact connection system to be used The user s own electronics should then have a similar FFC connector and may contain circuitry such as analogue to digital converters and digital signal processing The key features of the Array4 EVB PreAmp electronics are as follows e 16 channel differential preamplifier design based on the AD8132 ArraySM 4 Scalable Silicon Photomultiplier Array S e S L USER MANUAL sense light e Required power supply 3 3V default range from 2 7V to 5V absolute maximum Differential preamplification output for each pixel with common mode voltage at ground for low crosstalk Compact preamplification differential output via 50 way FFC flat flexible cable or 80 way board to board connector Power input via the FFC 4 way Sherlock connector or board to board connector Read back monitor of programmed bias voltage on FFC and board to board connector e Positive Input bias supply 34V to 40V 50mA maximum supply which is stepped down and regulated on the PreAmp board to bias the pixels e Power supply select jumpers Jumper to bypass preamplifier bias regulator and to apply direct bias to the ArraySM 4 from e g a bench supply See test sheet for recommended bias voltage Jumper allows the regulator to be supplied from the either the board to board connector FPC connector or the Sherlock connector e Board to board 80 way 0 5mm pitch connector for plugging into the Array4 E
15. annel to give negative output pulses This is achieved by inserting zero ohm 0805 package size jumpers in the Ri R3 R5 H7 R17 R19 R21 R23 R33 R35 R37 R39 R49 R51 R53 and R55 positions of the Array4 EVB PixOut board The default configuration circuit of resistors is shown in Figure 14 The positions of the jumpers for the default configuration on the Array4 EVB PixOut board are highlighted in Figure 15 If positive output pulses are required then the jumpers must be moved from the default positions to positions R9 R11 R13 R15 R25 R27 R29 R31 R41 R48 R45 R47 R57 R59 R61 and R63 as indicated in Figure 16 This connects the Pout signals to the SMA outputs instead of the Nout ouputs e Note 1 both Nout and Pout jumpers must not be soldered to the board at the same time as their voltages will sum effectively giving Zero output e Note 2 solder rework tools are required to change the jumper positions ArraySM 4 Scalable Silicon Photomultiplier Array USER MANUAL R1 R3 R5 AZ MMA o P AA y ao HA Mr P a R OR 0805 1 8H R OR 080S 17 H R R 0885 1 8W R ER 0805 1 8 3 i s 3 E 3 Pu MW gt P o gt R17 R19 R21 R23 AMA a ASDA NARA x AMMA AN x AAA A aha n R 8R 08685 1 8 R BR 88905 1 8W R 8R 80895 1 9M R OR 0805 4 amp mad p R33 R35 R37 R39 A o FSA ge Pr Soe og geo aos reget E m R GR 6805 1 80I BR OGR 0805 1 8M R OR 0805 1 8H R egp 0805 1 8 NY
16. applications requiring direct light detection or for radiation detection via scintillators The ArraySM 4 package is designed in such a way that multiple arrays can be tiled together This allows NxM arrays to be seamlessly assembled into a larger area detection plane Whether the application requires a 1D array for spectrometry or a 2D array for large area detection with position sensitivity the ArraySM 4 is a novel detector solution and the ideal replacement for MCPs Multi Anode PMTs APDs and existing discrete SPM products e 16 4 x 4 elements of 8mm pixels e High pixel to pixel output uniformity uniformity ratio lt 1 1 5 e Low external package deadspace allowing for NxM configurations High gain 10 pixel e Low bias voltage operation 30V e Compact footprint interface electronics with form factor matched to ArraySM 4 width for tilling e Multi channel differential pre amplification and convenient power supply Pixellated or Summed output via interface electronics Getting Started UNPACKING THE SYSTEM AND PREPARATION FOR USE Contents of the Package e ArraySM 4 Detector Module 4X4 element array of 8mm SPMs type MicroSM 30035 mounted in 20 pin ceramic package e Array4 EVB PreAmp optional 16 channel preamplifier board for ArraySM 4 e Array4 EVB PixOut optional Evaluation board for ArraySM 4 for pixellated or summed signal output with power supply e Array Opt PGA20P optional 20 pin straight terminal SMT socket
17. inverting differential outputs for channel 4 Inverting differential outputs for channel 5 Non inverting differential outputs for channel 5 Inverting differential outputs for channel 6 Non inverting differential outputs for channel 6 21 Inverting differential outputs for channel 7 22 Non inverting differential outputs for channel 7 24 Inverting differential outputs for channel 8 25 Non inverting differential outputs for channel 8 27 Inverting differential outputs for channel 9 28 Non inverting differential outputs for channel 9 30 Inverting differential outputs for channel 10 31 Non inverting differential outputs for channel 10 39 Inverting differential outputs for channel 1 1 34 Non inverting differential outputs for channel 11 36 Inverting differential outputs for channel 12 of Non inverting differential outputs for channel 12 39 Inverting differential outputs for channel 13 40 Non inverting differential outputs for channel 13 42 Inverting differential outputs for channel 14 43 Non inverting differential outputs for channel 14 45 Inverting differential outputs for channel 15 46 Non inverting differential outputs for channel 15 48 Inverting differential outputs for channel 16 49 Non inverting differential outputs for channel 16 NN NN Pin Name NOUTO1 POUTO1 NOUTO2 POUTO2 NOUTOS POUTOS NOUTO4 POUTOA NOUTO5 POUTOS NOUTOG POUTOG NOUTO7 POUTO7 NOUTO8 POUTO8 NOUTO9 POUTO9 NOUT10 POUT10 NOUT 1 1 POUT11 NOUT12 POUT12 NOUT13 POUT13
18. lowing precautions are recommended 4 e Ensure that personal grounding environmental controls and work surfaces are compliant with recommendations in JESD625 e Ensure that all personnel handling these devices are trained according to the recommendations in JESD625 e Devices must be placed in an ESD approved carrier during transport through an uncontrolled area TECHNICAL ISSUES AND SUPPORT In the event of defects in material or workmanship or a failure to meet specifications promptly notify your local sales agent They can advise whether it will be necessary to contact SensL directly To contact SensL directly email support sensl com or call the phone numbers at the end of this document Supporting documentation including datasheets and technical notes can be found on the website www sensl com ArraySM 4 Scalable Silicon Photomultiplier Array S e S L USER MANUAL sense light ArraySM 4 Specifications Table 1 ArraySM 4 Detector Specifications Part Number i Parameter Units Test Conditions ArraySM 4 30035 Pixel Chip Area 316x316 3 16 0 01mm to account for scribe cut of die kerf Breakdown Voltage V 210 40 5 Operating Voltage Range 1 5 above V Photon Detection Efficiency at V Ana o00nm Table 2 ArraySM 4 Module Specifications Part Number Parameter Units Comments ArraySM 4 30035 Pwamen 335 _mm OOS Piel Theres a Ceramic
19. mple The differential signals from the PreAmp board are combined into a single output on the PixOut board as shown in Figure 4 e Additional summed pixel output on a SMA connector e Board to board 80 way 0 5mm pitch connector for plugging into the PreAmp board differential output signals power supply bias supply stepped down bias monitor SPI interface e 6V DC power supply provided by a universal AC adapter e On board regulation to provide 3 3V preamplifier supply e On board switching regulator to provide 36V input to the step down regulator on the PreAmp board e FFC connector should remote positioning of the evaluation board from the PreAmp board be required e g for environments where there are strong magnetic fields Figure 4 Schematic of the method used to combine the differential signals to a single output on the PixOut board ARRAY4 EVB PREAMP 16 CHANNEL PREAMPLIFICATION BOARD The Array4 EVB PreAmp board has several functions It independently preamplifies signals from each of the 16 pixels of the ArraySM 4 giving a differential output for each channel It also contains a regulator which is programmed to output the optimal bias voltage for the array Customers may wish to connect the preamplifier to their own system or to use the Array4 EVB PixOut evaluation board The output signals from the preamplifier are available on a 50 way FFC 0 5mm pitch connector The differential nature of the signals ensures low crosstalk
20. onnection for the Sherlock connector J15 Supply to Bias Regulator 34V to 40V or direct to the ArraySM 4 see recommended Vop for the particular ArraySM 4 VBIAS_EXT 4 Jumper selection J14 determines how this power is routed to the array see below Sherlock pin 1 position indicated on Figure 5 Jumpers also allow additional options for the power supply as shown in Figure 12 SPMArray4 A0 Pre amplification PCB VBIAS_IN l u J1FFC Connector J4 Board to Jumper Board Connector SPMArray4 J15 Sherlock VBIAS_EXT Figure 12 Schematic for bias supply configuration options Jumper J10 has the following options e Short pins 1 amp 2 to feed the Bias Regulator input VBIAS_REG_IN with VBIAS_IN from board to board connector J4 or FFC connector J1 DEFAULT SETTINGS Note this option should always be used when supplying power from the PixOut evaluation board e Short pins 2 amp 8 to feed the Bias Regulator input VBIAS_REG_IN with VBIAS_EXT from Sherlock connector J15 Jumper J14 allows the following options e Short pins 1 amp 2 to supply the ArraySM 4 bias voltage VBIAS_SEL from the Bias Regulator output VBIAS_REG_OUT DEFAULT SETTINGS e Short pins 2 amp 3 to supply the ArraySM 4 bias voltage VBIAS_SEL directly from VBIAS EXT on the Sherlock connector J15 bypassing the preamplifiers Bias Regulator circuit ArraySM 4 Scalable Silicon Photomultiplier Array S e S L USER MANUAL sense light Setting Up the
21. oves when inserting the array Apply pressure firmly and equally over the surface of the ArraySM 4 when inserting into the socket taking care not to put extra force on any particular pin as the pins are formed from soft copper material 2 Connect the 50 way FFC cable between the PreAmp board and the user s interface electronics 3 Decide on the method of power supply and arrange the jumpers on the PreAmp board as described in the previous section 4 Ensure the ArraySM 4 is not exposed to bright light conditions The detector is designed measure in low light conditions and exposure to bright light may lead to issues with the package overheating 5 Apply power either directly to the ArraySM 4 using bench supplies on the Sherlock Connector J15 or through the FFC cable via the customer interface electronics Note it is recommended to apply the 3 3V supply before the detector bias supply and switch off the bias supply first when powering down 6 The ArraySM 4 is now ready to use ArraySM 4 Scalable Silicon Photomultiplier Array S e S L USER MANUAL sense light Schematics ARRAYSM 4 DETECTOR 15 31 ou u 14 31 0 u 15 31 lo i m 10 16 a N 3 E P14 P16 P18 P20 al CHO 9L 9 9 19 RS M P13 PIS P17 P19 id z o o E NIS AE de om N L 2 67 01 3 37 one I O v vari B 15 81 fi uk 090
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