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SR560 COMPONENT PARTS LIST

C-1

Front Panel Parts List

REF. SRS

part# VALUE DESCRIPTION

D 1

3-00884-306

RED

LED, Rectangular

D 2

3-00012-306

GREEN

LED, Rectangular

D 3

3-00012-306

GREEN

LED, Rectangular

D 4

3-00012-306

GREEN

LED, Rectangular

D 5

3-00012-306

GREEN

LED, Rectangular

D 6

3-00012-306

GREEN

LED, Rectangular

D 7

3-00012-306

GREEN

LED, Rectangular

D 8

3-00012-306

GREEN

LED, Rectangular

D 9

3-00012-306

GREEN

LED, Rectangular

D 10

3-00885-306

YELLOW

LED, Rectangular

D 11

3-00012-306

GREEN

LED, Rectangular

D 12

3-00012-306

GREEN

LED, Rectangular

D 13

3-00012-306

GREEN

LED, Rectangular

D 14

3-00012-306

GREEN

LED, Rectangular

D 15

3-00012-306

GREEN

LED, Rectangular

D 16

3-00012-306

GREEN

LED, Rectangular

D 17

3-00012-306

GREEN

LED, Rectangular

D 18

3-00012-306

GREEN

LED, Rectangular

D 19

3-00012-306

GREEN

LED, Rectangular

D 20

3-00012-306

GREEN

LED, Rectangular

D 21

3-00012-306

GREEN

LED, Rectangular

D 22

3-00012-306

GREEN

LED, Rectangular

D 23

3-00012-306

GREEN

LED, Rectangular

D 24

3-00012-306

GREEN

LED, Rectangular

D 25

3-00012-306

GREEN

LED, Rectangular

D 26

3-00012-306

GREEN

LED, Rectangular

D 27

3-00012-306

GREEN

LED, Rectangular

D 28

3-00012-306

GREEN

LED, Rectangular

D 29

3-00012-306

GREEN

LED, Rectangular

D 30

3-00012-306

GREEN

LED, Rectangular

D 31

3-00012-306

GREEN

LED, Rectangular

D 32

3-00012-306

GREEN

LED, Rectangular

D 33

3-00012-306

GREEN

LED, Rectangular

D 34

3-00012-306

GREEN

LED, Rectangular

D 35

3-00012-306

GREEN

LED, Rectangular

D 36

3-00012-306

GREEN

LED, Rectangular

D 37

3-00012-306

GREEN

LED, Rectangular

D 38

3-00885-306

YELLOW

LED, Rectangular

D 39

3-00885-306

YELLOW

LED, Rectangular

D 40

3-00012-306

GREEN

LED, Rectangular

D 41

3-00012-306

GREEN

LED, Rectangular

D 42

3-00012-306

GREEN

LED, Rectangular

D 43

3-00004-301

1N4148

Diode

D 44

3-00004-301

1N4148

Diode

D 45

3-00004-301

1N4148

Diode

D 46

3-00004-301

1N4148

Diode

D 47

3-00377-305

GL9ED2

LED, Rectangular, Bicolor

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Summary of Contents for SR560

Page 1: ...MODEL SR560 LOW NOISE PREAMPLIFIER 1290 D Reamwood Avenue Sunnyvale CA 94089 U S A 408 744 9040 Copyright 1989 1990 1997 1999 Stanford Research Systems All Rights Reserved Revision 2 6 02 2003...

Page 2: ......

Page 3: ...Operation and Controls Front Panel Operating Summary 7 Power 7 Source 7 Filters 8 Gain Mode 9 Gain 9 Output 9 Reset 9 Status 9 Rear Panel Operating Summary 10 AC Power Input 10 Amplifier Power Output...

Page 4: ...A 1 Introduction A 1 Commands A 1 Appendix B Noise Sources and Cures B 1 Intrinsic Noise Sources B 1 Johnson Noise B 1 1 f Noise B 1 Others B 1 Non Essential Noise Sources B 1 Capacitive Coupling B 2...

Page 5: ...gs and can invert the output relative to the input The SR560 normally operates with a fully floating ground and can be viewed as an in line BNC amplifier with the amplifier ground isolated from the ch...

Page 6: ...nting the printed circuit board Press the circuit board firmly into its slot so the desired voltage is visible Rotate the fuse pull lever back into its normal position and insert the correct fuse into...

Page 7: ...applications Warning Regarding Use with Photomultipliers The front end amplifier of this instrument is easily damaged if a photomultiplier is used improperly with the amplifier When left completely un...

Page 8: ...4...

Page 9: ...n 0 5 steps Gains up to 1000 0 5 dB to 1 MHz 0 3 dB to 300 kHz Gain Stability 200 ppm C DC Drift 5 V C referred to input DC coupled Filters 0 03 Hz to 1 MHz 10 typical accuracy Distortion 0 01 typical...

Page 10: ...SPECIFICATIONS 6...

Page 11: ...the ON position Battery life will be reduced when the unit is providing external power through the rear panel jacks When operating on batteries the front panel BATT indicator will be lighted As the ba...

Page 12: ...re controlled from the front panel The maximum bandwidth of the instrument is 1 MHz The filters in the FILTER CUTOFFS section can be configured in the following six ways i high pass filter at 12 dB oc...

Page 13: ...rt slowly and increase to a limit as long as either Gain button is depressed Simultaneously pressing both Gain buttons once again will restore the unit to the previously calibrated gain setting and tu...

Page 14: ...ong grounding plug the chassis ground is connected to the AC line ground conductor Battery Charger The two 3 A slow blow fuses protect the battery supply and charging circuitry If these fuses are blow...

Page 15: ...ed for too long in the low battery condition This protects the batteries from permanent damage which could occur if they were to remain connected to a load while dead The internal battery charging cir...

Page 16: ...s As well more time will be required to recharge the batteries to their rated capacity Higher temperatures accelerate the rate of reactions within the cell reducing cell life KEEP THE BATTERIES COOL W...

Page 17: ...omputer selected as 2 5 or 10 C111 provides high frequency compensation for U105 The output of this stage passes through all three sections of U104 a CMOS multiplexer that serves as the blanking contr...

Page 18: ...s in the amplifier so that no digital noise will be present The processor and clock only run when a front panel key is pressed and instrument settings are to be changed or while there is activity on t...

Page 19: ...to disconnect battery power from the amplifier Dead level hysteresis is provided by R724 R731 and D711 provide un interrupted battery power to the system RAM so that stored instrument settings are ret...

Page 20: ...e selection card To change the operating voltage of the unit the voltage selector printed circuit card must be pulled out and reinserted into the P E M with the desired operating voltage visible FRONT...

Page 21: ...end gain is x10 View the amplifier output on a scope and perform the following adjustments Couple GND Gain 5 k LOW NOISE adjust P103 to null DC and output Now use a function generator as the source o...

Page 22: ...or if the unit sources or draws excessive current to or from the batteries NOISE CONTOURS The noise contours shown upper right plot the noise figure as a function of source impedance and frequency Noi...

Page 23: ...r a SR560 set to a gain of 1000 the high pass filter set to 1 kHz and the low pass filter set to 10 kHz for a bandpass from 1 kHz to 10 kHz The dynamic reserve characteristic is shown for both High Dy...

Page 24: ...10 HDR 25 14 20 LN 11 6 20 HDR 25 20 50 LN 10 14 50 HDR 25 28 100 LN 4 14 100 HDR 20 34 200 LN 4 20 200 HDR 18 40 500 LN 4 28 500 HDR 15 48 1000 LN 4 34 1000 HDR 15 54 Gain Input Noise nV Hz Maximum...

Page 25: ...are always obeyed and control the address status of the SR560 Commands must end with a carriage return and line feed CR LF BLINK i Operates amplifier blanking i 0 not blanked 1 blanked CPLGi Sets inpu...

Page 26: ...APPENDIX A A 2...

Page 27: ...we would expect to see a rms Johnson noise of _ V2 1 2 0 13 V Hz 106 Hz 1 2 130 V 1 f Noise Arising from resistance fluctuations in a current carrying resistor the mean squared noise voltage due to 1...

Page 28: ...ve coupling of noise signals include 1 Remove or turn off the interfering noise source 2 Measure voltages with low impedance sources and measure currents with high impedance sources to reduce the effe...

Page 29: ...ath for mechanical noise to appear as electrical noise in a circuit or experiment Consider the simple circuit below The capacitance of a coaxial cable is a function of its geometry so mechanical vibra...

Page 30: ...APPENDIX B B 4...

Page 31: ...D Rectangular D 21 3 00012 306 GREEN LED Rectangular D 22 3 00012 306 GREEN LED Rectangular D 23 3 00012 306 GREEN LED Rectangular D 24 3 00012 306 GREEN LED Rectangular D 25 3 00012 306 GREEN LED Rec...

Page 32: ...ton SW8 2 00031 201 D6 01 05 Switch Momentary Push Button SW9 2 00031 201 D6 01 05 Switch Momentary Push Button SW10 2 00031 201 D6 01 05 Switch Momentary Push Button SW11 2 00031 201 D6 01 05 Switch...

Page 33: ...033 520 47U Capacitor Electrolytic 16V 20 Rad C 221 5 00033 520 47U Capacitor Electrolytic 16V 20 Rad C 222 5 00031 520 220U Capacitor Electrolytic 16V 20 Rad C 223 5 00031 520 220U Capacitor Electrol...

Page 34: ...13 5 00061 513 001U Capacitor Mylar Poly 50V 5 Rad C 414 5 00061 513 001U Capacitor Mylar Poly 50V 5 Rad C 415 5 00100 517 2 2U Capacitor Tantalum 35V 20 Rad C 416 5 00023 529 1U Cap Monolythic Cerami...

Page 35: ...1U Cap Monolythic Ceramic 50V 20 Z5U C 822 5 00100 517 2 2U Capacitor Tantalum 35V 20 Rad C 823 5 00023 529 1U Cap Monolythic Ceramic 50V 20 Z5U C 824 5 00023 529 1U Cap Monolythic Ceramic 50V 20 Z5U...

Page 36: ...4 00501 425 1 0MX5 Resistor Network SIP 1 4W 2 Common P 101 4 00353 441 100 Pot Multi Turn Trim 3 8 Square Top Ad P 102 4 00487 441 20 Pot Multi Turn Trim 3 8 Square Top Ad P 103 4 00617 441 100K Pot...

Page 37: ...122 4 00021 401 1 0K Resistor Carbon Film 1 4W 5 R 123 4 00215 407 909 Resistor Metal Film 1 8W 1 50PPM R 124 4 00141 407 100 Resistor Metal Film 1 8W 1 50PPM R 125 4 00192 407 49 9K Resistor Metal Fi...

Page 38: ...1 8W 1 50PPM R 306 4 00168 407 22 6K Resistor Metal Film 1 8W 1 50PPM R 307 4 00600 407 15 8K Resistor Metal Film 1 8W 1 50PPM R 308 4 00168 407 22 6K Resistor Metal Film 1 8W 1 50PPM R 309 4 00600 4...

Page 39: ...tor Carbon Film 1 4W 5 R 427 4 00021 401 1 0K Resistor Carbon Film 1 4W 5 R 428 4 00021 401 1 0K Resistor Carbon Film 1 4W 5 R 429 4 00034 401 10K Resistor Carbon Film 1 4W 5 R 430 4 00021 401 1 0K Re...

Page 40: ...Film 1 8W 1 50PPM R 729 4 00309 407 3 32K Resistor Metal Film 1 8W 1 50PPM R 730 4 00022 401 1 0M Resistor Carbon Film 1 4W 5 R 731 4 00142 407 100K Resistor Metal Film 1 8W 1 50PPM R 801 4 00031 401...

Page 41: ...ated Circuit Thru hole Pkg U 408 3 00143 340 LM393 Integrated Circuit Thru hole Pkg U 409 3 00371 340 DG444 Integrated Circuit Thru hole Pkg U 501 3 00155 340 74HC04 Integrated Circuit Thru hole Pkg U...

Page 42: ...Z 0 0 00237 016 F1404 Power Button Z 0 0 00240 026 4 40X3 8PF Screw Black All Types Z 0 0 00242 026 8 32X1 4PF Screw Black All Types Z 0 0 00243 003 TO 220 Insulators Z 0 0 00249 021 6 32X1 1 2PP Scre...

Page 43: ...ricated Part Z 0 7 00257 720 SR560 20 Fabricated Part Z 0 7 00258 720 SR560 26 Fabricated Part Z 0 7 00680 720 PS300 52 Fabricated Part Z 0 7 00795 720 BATTERY PAN Fabricated Part Z 0 7 00796 720 BATT...

Page 44: ...SR560 COMPONENT PARTS LIST C 14...

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