Construction of the unpopulated basic PCB kit. S Chambers and J Grove

Transcription

1 Construction of the unpopulated basic PCB kit. S Chambers and J Grove 1

2 Construction of the unpopulated basic PCB kit Assembly of the PSU board... 3 PSU Part 1 The incoming power supply... 3 PSU Part 2 - Charge pumps PSU Part 3 - The optional second charge pump... 8 PSU Part 4 The -7/-9 voltage regulator PSU part 5 The 15V regulator PSU part 6 15V/11-5 V adjustable supply PSU part 7 The 8V regulator PSU Part 8 Digital 5V PSU Part 9 Connectors Completion of PSU board Construction of the main CCD board Main boards part 1 Power connector Main boards part 2 Installation of the USB components Main board part 3 Processor Main board part 4 - Installing the PIC Processor Main board part 5 Bus Switch Main board part 6 - Optical isolators and connectors Main board part 7 FIFO (optional) Main board part 8 LE webcam port Main board part 9 Main board regulators Main board part 10 Horizontal and reset gate drivers Main board part 11 the V driver Main board part 12 CCD support components Main board part 13 Opamp Main board part 14 ADC Main board part 15 The End PSU Schematic PSU Component positions Main Board Schematic page Main Board Schematic page Main board component positions Bills of materials Copyright Copyright S Chambers and J Grove, all rights reserved. 2

3 Assembly of the PSU board. PSU Part 1 The incoming power supply The PSU board contains most of the circuitry for converting the 12V input into the range of voltages required by the CCD board. Also included is a separate section that directly supplies the peltier cooler. The grounds of these two sections are kept separated within the camera to allow some flexibility when choosing supplies but can be common. We will start the build by connecting up the power supply socket to the board and installing the protection circuits. The schematic for these parts is. P4 and P5 are the +12V and Ground inputs to all the camera circuits except the peltier supply (P6 and P7). To start I suggest using a computer type power supply which offers +12V and +5V. If you are using the full case kit a din socket and plug are supplied. Although you may not wish to mount the socket within the case at this stage its probably worth using this components from the start. P4=12V P5=0V P6=5V P7=0V The pin numbering of 5 pin Din sockets is a little strange. 3

4 Pin 1 : Ground Peltier to P7 Pin 2 : Ground for 12V to P5 Pin 3 : +5V Peltier to P6 Pin 4 : Not used Pin5 : +12V to P4 Close up of soldering to plug. 4

5 The socket soldered to flying leads to board. F1 and F2 are resettable fusses. If the camera draws too much power, eg due to a short circuit, this will trip offering some protection. If you choose to supply the camera using a Car battery you may still wish to use a fuse close to the battery due to that large about of current these can deliver. D3 and D5 are polarity protection diodes. If the polarity is reversed (12V with 0V) these diodes will conduct enough current to trip the fuse. Likewise the capacitor will smooth the incoming supply. Lowering the electrical noise is a prime concern for the camera. The charge collected on the CCD from a star can equate to just a few electrons. We need very low noise electronics to prevent these signals being lost. Fuses, protection diode, and filter components in place. Test Switch on the power supply and check for 12V at P3 and 5V at TP11. 5

6 PSU Part 2 - Charge pumps. The camera is designed to run from a 12V supply. From this it needs to generate supplies ranging from 15V to -9V. For most of the voltage conversions we will use low noise linear regulators. However in order to get a higher voltage than the input or a negative voltage we need to use charge pumps. These are the most electrically noisy components in the camera are a necessary evil! Later on when the PSU board is mounted in the case we will turn the board so the ground plane help to shield the RF generated by this part of the circuit. Also you will see the components are as far away from the sensitive analogue circuits as possible. The schematic for the first doubler is. IC5 is fed with 12V on pin 8. The conversion process involves rapidly charging and discharging C9. The 12V is converted to -12V (actually less due to conversion losses) on pin 5. A doubled voltage is developed though the 2 diodes on C12. The losses here are even greater due to the voltage drop across D1 and D2, however you should still see about 22V here. 6

7 The first charge pump in place. Test. Check for about +22V at D. The negative voltage will need an output capacitor selected by link 1 or 2 in the next section. 7

8 PSU Part 3 - The optional second charge pump. The first charge pump produces about -11V. This in turn is used to generate a Vl supply for the CCD. For the ICX285 this is -7V which is not usually a problem. However for the ICX429 Vl needs to be - 9V. This is more marginal for the regulator especially when using batteries in a cold field! So what we can do is take the -11V supply and double it to -22V. However this is going to add a second noisy component to the board. So the board has the option of this second chard pump. If you are using an ICX429 or will be using the camera battery powered you should add this second IC. You can also add the second charge pump for any configuration of the camera just to be safe. Only omit the second pump if you will be using a CCD that requires a Vl of 7V and will be using the camera powered from a stable 12V supply (mains PSU). In order to select the 2nd charge pump option make a link across LK2 and add the components IC7, C17,C20,C18. In order to use just one charge pump just add LK1 and do not add the components above except C17. 8

9 The components for the optional charge pump. Test Check for about -22V at TP6 with the second pump or 11V without. 9

10 PSU Part 4 The -7/-9 voltage regulator The ICX285,255,254,424 need a Vl of -7V while the ICX429 needs -9V. In order to accommodate all CCDs the PSU board uses a variable regulator the LM337. This regulator tries to maintain 1.25V between its output and its adjustment pin (4) ie across R10 in the circuit. By changing the resistance between pin 4 and ground we select different out put voltages. This is achieved by leaving LK3 open for -9V (ICX285 etc) and closed for -7V (ICX429). 10

11 components for the -7/-9V regulator Test Check for either -7V or -9V (+/- 10%) at TP4 11

12 PSU part 5 The 15V regulator. The 15V supply is used to generate the clock signal that moves the image on the CCD into the read out registers. Also it is used to supply the circuit that maintains the bias on the CCD array during exposure. The schematic is almost too simple to show. The 15V regulator. Test Check for 15V at TP2 12

13 PSU part 6 15V/11-5 V adjustable supply. When the CCD is being read out the on chip amplifier needs to be supplied with 15V in order to work. However this part of the CCD is well known for its electro luminescence when powered. This would result in a glow appearing to come from one corner of the image. In order to eliminate this we need to drop this voltage to about 6.5V while the CCD is exposed. This is the job of IC3 a LM317 adjustable regulator. As with the LM317 it tries to keep a constant voltage between its output and its adjustment pin by regulating the output voltage. R1 and R5+R6 are selected to give 15V output. The line to the base of TR1 is controlled by the cameras PIC processor. If it goes high then TR1 switches the pot RV1 into the circuit. This allows adjustment in the range 11V-5V by effectively reducing the value of R5+R6. Schematic 13

14 Test 15V at TP9. We will adjust the amp off voltage after the main board is working. 14

15 PSU part 7 The 8V regulator The PSU supplies 8V to the CCD board not because the board needs 8V but rather so the voltage regulators on this board can convert it to the critical low noise 5V that supplies the op amp and the ADC. Schematic The 8V regulator components. Test Check for 8V at TP3 15

16 PSU Part 8 Digital 5V The digital 5V regulator supplies the main processor within the camera, the optical isolators used for guiding, and the 10Mhz crystal clock etc. The PIC processor and the clock especially generate electrical noise so we will keep this 5V supply and its ground separated from the other power supplies to the camera. The PIC only needs a hundred or so milli amps but the regulator we are using can supply an amp or so. This gives a lot of potential extra supply. The digital 5V is also supplied to the expansion socket and could be used to power filter wheels etc in the future. The schematic for this part is very simple It is best to mount this part directly on to the case such that the case provides the regulators heat sink. However do use the insulation kit between regulator and case. When using this arrangement the regulator needs to be mounted on flying leads or socketed. 16

17 The 5V regulator connection. Test Check for 5V at TP1. 17

18 PSU Part 9 Connectors The final part of the PSU board assembly is the addition of the connector sockets J1 and J2 shown below. 18

19 Completion of PSU board. By following the instructions you should now have a working PSU board. Also you should know what all those little components are actually doing. Well Done! 19

20 Construction of the main CCD board. The PSU board supplies the voltages that the main CCD board needs; the main board does every thing else that is needed to make a camera. Although this board may look complex is really is amazing simple when all of its functions are considered. The board is divided into 2 half s. Digital and analogue. The digital side again is electrically noisy while we will keep the analogue side as clean as possible in order that the small signals from the CCD can be effectively amplified. The digital side contains the control circuitry and we will start assembly and testing here. 20

21 Main boards part 1 Power connector Start the main board assembly where we finished the PSU board, with the power connector. Also add C3 the input capacitor for the 5V supply. The PSU and main board are joined with a 8 way lead. These need to be assembled from the plug shells and 8 pre crimped cables. The plugs are wired pin1 to pin 1 etc. 21

22 Main boards part 2 Installation of the USB components. The USB controller chip is from FTDI. This provides a very straightforward way to incorporate USB connection within the camera. The FT245BM provide us with several options that are selected according to how the chip is wired. The Artemis uses the controller in self-powered mode, with the onboard FIFO, and the optional eeprom (IC12). Being self-powered the chip draws no current from the USB port and should be compatible with older laptops that struggled to provide enough power to their USB ports. Also the camera will not be recognised by the computer until the USB connection is made AND the camera is powered. The FT245BM contains a few bytes of first in first out (FIFO) memory to buffer the communication to and from the camera. This is essential as we use the processor to provide the critical clock timings for the CCD. If the processor had to stop every time the PC sent information to it this timing would be compromised. With this FIFO, the FT245 signals that there is information to be read and the cameras processor is able to read the information when it is ready. Finally the eeprom contains the data to identify the Artemis to the PC and set up the right USB protocol. 22

23 The USB components in place (note the resonator shown is not the correct type!) Test / driver installation. We now need to go through a series of steps to configure the USB module and install the drivers. To do this you should install the Mprog program on an XP computer and also copy the Artemis.ept configuration file, and the Artemis driver to the same computer. Connect the camera to the computer with a USB lead, and power the main board using the PSU board. The computer should recognise that a new USB devise has been plugged in. If you get the chance, force windows to use the driver in the Mprog directory. It is possible that XP will identify the camera as a high-speed serial cable and install its own driver. If this happens go into the control panel, device manager. Identify the new device and select change driver and install the driver from the Mprog directory. Then run Mprog and load the Artemis.ept config file and program the Artemis (instructions are included within Mprog). Finally power cycle the camera. This time it should be identified as an Artemis CCD Camera. When windows asks for a driver point it to the Artemis driver from the CD. Windows should report that your hardware is ready to use. This is a bit premature as there is still some work to do on the PCB! But congratulations for getting this far anyway! 23

24 Main board part 3 Processor Before we put the PIC processor in place we need a few support circuits. A 10Mhz clock signal is needed, Y1 provides this. Add the decoupling capacitors C33 C26 and the resistor R26. Also add R10 (on the left side of the board which will prevent the PIC from continually resetting itself. When soldering the PIC socket you may find it easier to cut out the bottom to give better access to the pins. If so keep the little square of plastic and place it under the PIC before this is installed, as it will allow correct positioning of the PIC in its socket. 24

25 The parts fitted and the PIC (do not actually fit the PIC at this stage!) Test. Turn on power. Using a multimeter you should see about 2.5V at TP1. If you have an oscilloscope check for a 10Mhz clock at TP1. 25

26 Main board part 4 - Installing the PIC Processor. The main processor- Is a PIC device from Microchips. This will be responsible for generating all the timing signals needed for the camera. Its really rather more than this though, it can be thought of as a 40Mhz computer on a chip. It has its own program and data memory. For this camera we have chosen a re-programmable version. This will mean new software or commands can be written for the camera. Also rather than needing a dedicated re-programming device the PIC can program itself from data it receives over the USB link. The PIC is supplied with a non-erasable boot code. Using this code you will upload a firmware suited to your CCD together with a collection of diagnostic routines. These allow the cameras circuits to be tested and set up without the need for an oscilloscope. So this stage need no solder! Just plug in the PIC Test OK this should be the first stage where the camera starts to come alive. Switch on power. Install and run the diagnostic application on the CD. Connect the USB cable and press connect. The software should find the camera, say that it is connected and show some command options. At this stage the camera can only do 3 things. Identify itself to the software, sync up communications at a low level, and program its memory from data sent from the PC. If you try pinging the camera with the value of say 20 you will find it does not respond, as it has no firmware to do so. This firmware data is contained within.art files.. Then press update firmware and enter the path and file name of the art file relating to the CCD you will use into the program wait until the PC reports completion. You can now check the PIC to USB link by pinging the PIC with different bytes that are then returned to the PC unchanged. Run though a handful of values from 0 to 255 and check the same number is sent back. Other commands are available from the selection box. Finally we can now set RV1 on the PSU board. Using the software set the amp to off. Measure the voltage at TP9 on the PSU board. Use RV1 To set a voltage of 6.5V. This will do for now and can be adjusted further later. Main board part 5 Bus Switch 26

27 During the beta test of the cameras the ability to accommodate a FIFO buffer was added to the circuits boards. The FIFO needs 4 control lines which are 4 more than the number of spare lines we had. However the FIFO is only used during the readout of the CCD, a time in which the control lines used for the guider are not used. A 74HC244 is used to switch these lines between FIFO and guider. The same line that activates the main ADC converter provides the control. This is routed though the inverter IC15 to the two enable pins of the switch. The rest is pretty straightforward but note that RA3 at the PIC is an output for guiding and an input with the FIFO. Test Just a visual check. 27

28 Main board part 6 - Optical isolators and connectors The camera provides a standard ST4 type guiding socket. This allows the computer to send small corrections to a telescope mount to correct for errors in tracking. Incidentally, as the camera has its own small single chip computer it may in the future be possible to use the camera as a stand alone auto guider. As the mount may have different electrical connections to that of the camera we have provided complete electrical isolation of the mount and the cameras electronics. To move the mount in a given direction the camera turns on a LED within the opto isolator that turns on a photo transistor also within the isolator. The transistor pulls down a control line in the mounts guide socket, which is sensed by the mounts control electronics. As the connection between camera and mount includes a optical stage the two are electrically isolated. Also at this stage solder on the connectors J3 (guider port) and J2. J2 is a multi function connector. It can be used to re program the pic, however we recommended the users of the camera only uses the safer USB reprogramming method. Its other use is as an expansion port. The camera firmware includes methods to communicate over a 2 wire serial interface with other devices and the port includes a 5V power supply and ground connections. In the future filter wheels etc may become available. 28

29 Tests No tests for these parts but do check by eye. 29

30 Main board part 7 FIFO (optional) During readout of the CCD the digitised values of the pixels are sent to the PC over the USB link. As the USB controller chip contains a small amount of FIFO memory, and the USB bandwidth is greater than we need to transfer the image, the readout of the CCD will complete on a fast PC without stalling. However it is possible, on slower computers or computers which are running a number of programs at the same time, that the USB controllers send buffer will fill up and the readout process will have to be stopped to prevent loss of data. The problem with stopping the readout mid line is that the pixel that is left next to the output stage of the CCD received a lot of electro luminescence. Also all the pixels left in the horizontal register will receive some extra signal. This appears as a bight spot and trailing line on the image. In order to prevent this we can use a larger FIFO buffer to provide extra storage if the PC is unable to take the data. The camera then waits until it can empty this buffer before beginning another line. As mentioned the FIFO is not really needed when using the camera with a fast PC and the overhead in managing the buffer with actually slow the readout a little. It the FIFO is fitted then the software can choose whether or not to use it. We have specified a 20ns 4K buffer. Bigger or faster buffers that are pin compatible will also work. 30

31 Test. Using the diagnostics software, you can check the FIFO and also ping the FIFO with a byte. Type some values

32 Main board part 8 LE webcam port J4 is a simple control line. It is envisaged that this can be used to control the exposure circuit of a modified webcam. The webcam could be used as a guider for this camera. The webcam still needs a direct USB connection back to the PC but this port would eliminate the usual second lead to the PC printer port. 32

33 Main board part 9 Main board regulators. The ADC and opamp require very clean and stable 5V power supplies. These are generated from the 8V supply to IC10. As a final stage the supplies are filtered using L2 and L3 and their associated capacitors. Test. Apply power and check for 5V at C21 and C31 33

34 Main board part 10 Horizontal and reset gate drivers. The horizontal clocks move the charge in the horizontal resister along the register and in to the amplifier one pixel at a time. The reset gate clears the amplifier in between each pixel. We could driver these signals direct from the Pic, however the data lines from the PIC have a lot of electrical noise that is best keep away from the CCD. The parts we are using to interface the PIC to this part of the CCD might be a bit surprising. Single inverter logic gates are used (74hc1g04). In use these give remarkably good clock signals with very little ringing. The CCD provides its own DC offset to the reset gate input. Therefore the capacitor C15 is needed between the reset gate inverter and the CCD. In use the H1 clock is just the inverse of the H2 clock. Rather than generate these separately a single line from the PIC is either inverted once or twice. Tests The pin out of the CCD header is, 34

35 Using the diagnostic program. Set H1 to high and check for 5V at H1 and 0V at H2 (pins 1 and 2 of the CCD header) Set H1 low and check for 0V at H1 and 5V at H2. Set RG high and check for 5V at c15 Set RG low and check for 0V at c15 35

36 Main board part 11 the V driver The Sony CXD1267AN is used to convert the 0-5V logic level signals to the 15V to -9V clock signals the CCD requires for its vertical clocks. Also included in this chip are a charge pump and an op amp. We are not doing to use the charge pump as we are using the icl7662 s on the power supply board that are rather more flexible. However the opamp is very useful to provide a substrate bias to the CCD during integration. To recap, the CCD s from Sony have a couple of extra circuits on them; an amplifier and a substrate bias generator. The amplifier is very useful as it brings the output from the CCD array up to voltage levels that are relatively easy to handle. The down side is the amplifier produces a glow if left running during the exposure. So we will only turn on this circuit during readout. The substrate bias generator effectively produces the wells associated with each pixel in which the electrons generated collect. This is usually about 10V. Sadly both the amp and the bias generator are supplied by the same power source. So if we switch off the amp during integration we will find we have switched off the substrate bias and will have very small wells and so very little dynamic range (different shades of grey). The solution is to inject a DC bias into the CCD a little less than is normally internally generated. The op amp in the V driver provides this voltage and the pot RV1 controls this. Finally the CXD1267 provides 4 drivers for the vertical clocks (and one shutter). 2 of the clocks are 2 level (can be either 0V or 7/-9V), I will call these V1a and V1b. Also the Vdriver has 2 three level outputs (15V,0V,-7/-9V). I will call these V2a and V2b. To run the icx 255 and the icx429 we need 2 two level clocks and 2 three level clocks which is fine. The icx285 however needs 3 two level clocks and one 3 level. In this case we will use V2B as a two level clock (0V and 7/-9V) The ICX285 and been found to be tolerant of the occasional 15V level on its 2 level clock inputs. However if you which to insure though hardware that this clock is strictly two level then do not fit R13. For the CCD s ICX255 and ICX249 r13 must be fitted. 36

37 Tests To begin check the static voltages. AGND =0V VDD = 15V with amp on and 6.5V with amp off VL = -7V except for the ICX429 = -9V Use RV1 to adjust CLKSUB to 8V (will adjust more later!) Then use software to set the vertical clocks V1a,V1b,V2a, and V2b to their 2 or three levels and check the voltages. High =15V, 0 = 0V and low = -7V (-9 for the ICX429). Set shutter to high or low and check for 15V or -7 (-9) V at C7 37

38 Checking the voltage levels on the beta test boards. 38

39 Main board part 12 CCD support components. Many of the components in this section are related to decoupling. Slightly more interesting is TR3. This is the first stage of the amplification of the output of the CCD. It s a high frequency JFET transistor whose output follow the voltage of the Vout signal from the CCD. Having high input impedance it does not significantly change the vout signal and being a high frequency device it can rapidly follow changes in Vout as each pixel is read. 39

40 Tests. Just a visual check at this stage. 40

41 Main board part 13 Opamp. The Opamp circuit in this camera has 3 roles. To remove the offset (about 10 volts) from the CCD out put and to amplify the range of the signal (from about 1V) to match the 5V range of the ADC. Finally to invert the signal such that increasing light = increasing voltage. It s a lot of work for a single device but by only using a single opamp we should be keeping the noise as low as possible. The components R36 and D3 form a temperature compensation circuit. The resistance of D3 varies with temperature and compensated for temperature / voltage changes in the CCD output. 41

42 Test. Again just visual. RV2 controls the offset. We will set this after a CCD has been installed. 42

43 Main board part 14 ADC. In many ways the whole camera is based around the ADC. This will take the processed output from the CCD and digitise it. The ADC is a full 16bit parallel device, however to get all the information on to the camera 8 bit data bus we read the values in two 8 bit bytes. The ADC timing is controlled direct from the PIC processor. The ADC, the USB controller and the FIFO all share the same databus. Thus the PIC can decide whether to read the digitised values itself or to pass them direct to the USB for transmitting to the PC, or indeed to store them in the FIFO. R21 and C27 form a RC filter. For each pixel the opamp charges C27 though R21. The ADC then quickly samples the charge on C27. This ensures that any high frequency noise from the opamp at the moment the ADC samples the level does not effect the digitisation. 43

44 Test Do make a close visual inspection for solder bridges between the pins of this part. 44

45 Main board part 15 The End. Well that s all the soldering done! It s a good time to check that you don t have too many bits left over! For the next stage of testing and commissioning we need to install a CCD. This is probably also the right time to put the PCB in the case. 45

46 Appendixes PSU Schematic 46

47 PSU Component positions 47

48 Main Board Schematic page 1 48

49 Main Board Schematic page 2 49

50 Main board component positions. 50

51 51

52 Bills of materials SC/JG CCD Camera Revised: 25th February 2005 FEC Revision: 3 Qty Reference Part Package Farnell Pt No RS Pt No Extension MOQ Notes 2 R31,R32 27R SM R21 33R SM R18 100R SM R23 330R SM R11,R12,R16,R17,R28 470R SM R25 680R SM R26 820R SM R14,R15,R20,R37,R41,R42,R43 1K SM R33 1K5 SM R36 1K8 SM R29 2K2 SM R24 2K7 SM R19 3K9 SM R22 8K2 SM R8,R9,R10,R27,R30,R34,R38,R39,R4010K SM R35 15K SM R5 100K SM R7 1M SM R13 0R SM RV1 50KLIN 4mmSQ RV2 500RLIN 4mmSQ C28 10P SM C18 100P SM C27 6N8 SM C10 10N SM C8,C9,C13,C15,C16,C19,C20,C23, 100N SM C24,C25,C26,C29,C33,C34,C35,C39, C40,C41 2 C22,C30 1U 10V SM C11 1U 16V SM C7 1U_35V_TANT MCCT_B C32 2U2 SM C17 4U7_10V_TANT MCCT_A C14 4U7_16V_TANT MCCT_B C3,C12,C21,C31,C38 10U_10V_TANT MCCT_B D1,D2,D3 BAS16 SOT L2,L3 FB TR3 MMBFJ310-L SOT IC10 L4931CD50 SO IC3 CXD1267AN SSOP EIAJ T Framos 4 IC4,IC5,IC6,IC15 74AHC1G04 SOT IC7 OPA300AIDBV SOT23-6 TI or OPA356AIDBV 1 IC8 PIC18F442-I/L PLCC or PIC18LF442-I/L 1 (IC8) PLCC44 SOCKET PLCC44 SM IC9 ADS8322YB TQFP IC11 FT245BM LQFP FTDI 1 IC12 93LC46BM SO IC13 CY7C433-20AC TQFP32 1 IC14 MM74HC244ADT TSSOP ISO1,ISO2 ILD223T J1 CON8 Molex 1.25mm Straight J2 CON5 Molex 1.25mm Straight J3 CON6 FCC 6/ J4 CON2 Molex 1.25mm Straight J5 CON20B do not fit 1 J6 USB USB Socket Type B Y1 10MHz OSCILLATOR IQXO Y2 6MHz RESONATOR MURATA CSTCR Total

53 SC/JG CCD Camera PSU PCB Revised 21st March 2005 FEC Issue 2 Qty Reference Part Package Farnell Pt No RS Pt No Extension MOQ Notes 1 R10 220R 1% SM R8,R9 680R 1% SM R2 820R 1% SM R11 3K9 1% SM R3 4K7 SM R5 8K87_1% SM R4 10K SM RV1 10KLIN 4mmSQ C1,C3,C5,C10,C23,C24 100N SM C4,C13 1U_25V_TANT A C7,C15 4U7_35V_ALUM B C8,C9,C18,C22 10U_16V_TANT B C11,C20,C21 47U_16V_TANT D C12 100U_35V_ALUM TAJ H C17 4U7_35V_TANT C D3,D5 S3A DO-214AB D1,D2 MBRS140 DO-214AA F1 SMD Raychem 1 F2 RGE Raychem 1 TR1 BC849B SOT BC847/8/9 Acceptable 2 IC5,IC7 ICL7662CBA SO IC1 MC78T05CT TO Supply but do not fit 1 IC6 LM337LM SO IC4 MC78L08ACD SO IC2 LM78L15ACM SO IC3 LM317LM SO J1 CON8 Molex 1.25mm Straight J2 CON2 Molex KK Right angle LK1,LK2,LK3 LINK 2 Wire links Total

54 SC/JG CCD Camera Revised: Thursday, March 21, 2005 FEC Revision: A Qty Reference Part Package Farnell Pt No RS Pt No Extension MOQ Notes 2 molex 8 way plug molex 2 way plug wires crimped mm stand offs or 10mm stand offs 1 din ra plug din socket pelt 9W Not required if Kryotherm version use 1 jack plug jack sockjet Header Daughter board Not needed if using ICX285 1 ccd socket reg insulators reg fixing total