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Si Switchable Gain Detector, OEM

Chapter 3: Setup

Page 4

TTN235959-D02

2. Connect a power supply to pins 1, 3, and 5 of the J2 header. The required

power supply voltages are:

J2 Pin

Voltage

+12 VDC

GND

-12 VDC

Thorlabs offers the LD1255-SUPPLY as one compatible power supply
option. Connection to the board is shown below:

Figure 2 Power Supply Connection

Содержание PDAPC1

Страница 1: ...PDAPC1 Si Switchable Gain Photodetector OEM Package User Guide...

Страница 2: ...apter 4 Operation 8 4 1 Theory of Operation 8 4 2 Responsivity 8 4 3 Dark Current 8 4 4 Bandwidth and Response 9 4 5 Terminating Resistance 9 4 6 Gain Adjustment 9 Chapter 5 Troubleshooting 10 Chapter...

Страница 3: ...Symbol Description Direct Current Alternating Current Both Direct and Alternating Current Earth Ground Terminal Protective Conductor Terminal Frame or chassis Terminal Equipotentiality On Supply Off S...

Страница 4: ...the gain in 10 dB steps A buffered output drives 50 load impedances up to 5 V The output signal is readable from the MMCX connector We provide MMCX to BNC cables Item CA3339 or MMCX to SMA cables Ite...

Страница 5: ...Header J2 PIN OUT Pin Designation Pin Designation 1 V 2 GND 3 GND 4 OUTPUT 5 V 6 N C 7 A2 8 A1 9 A0 10 N C Note Pins 1 5 V refers to the power supply positive negative voltages Pins 7 8 9 A0 A2 refers...

Страница 6: ...ect a power supply to pins 1 3 and 5 of the J2 header The required power supply voltages are J2 Pin Voltage 1 12 VDC 3 GND 5 12 VDC Thorlabs offers the LD1255 SUPPLY as one compatible power supply opt...

Страница 7: ...cation of the On Board DIP Switches The following table describes what each switch does Switch Number Function 1 Enable 2 A0 3 A1 4 A2 To enable the DIP switch settings set switch 1 to On 1 See the ta...

Страница 8: ...k by turning this potentiometer Turning the screw head clockwise decreases the offset voltage and adjusting the screw head conterclockwise increases it Figure 4 Side adjusted potentiometer 5 Attach a...

Страница 9: ...it is on the power indicator LED will be illuminated yellow If the LED is green or red this indicates only one power rail either positive or negative respectively is connected In that case the user wo...

Страница 10: ...d to a photodiode The PDA with Transimpedance Amplifier does control the dark current flowing out Looking at the figure above it can be noted that Point B is held at ground and the amplifier will try...

Страница 11: ...Adjust the gain so that the measured signal level out of the PDAPC1 is below 10 V 5 V with a 50 load to avoid saturation For low terminating resistors 5 k or 1 error an additional factor needs to be...

Страница 12: ...ecure Verify the proper terminating resistor is installed if using a Voltage measurement device Verify that the optical signal wavelength is within the specified wavelength range Verify that the optic...

Страница 13: ...0 12 W Hz Offset 8 mV Typ 12 mV Max Offset 8 mV Typ 12 mV Max 20 dB Setting 60 dB Setting Gain Hi Z 1 5 x 104 V A 2 Gain Hi Z 1 5 x 106 V A 5 Gain 50 0 75 x 104 V A 2 Gain 50 0 75 x 106 V A 5 Bandwidt...

Страница 14: ...BP 600 MHz Output Impedance 50 Max Ouput Current IOUT 100 mA Load Impedance 50 to Hi Z Gain Adjustment Range 0 dB to 70 dB Gain Steps 8 x 10 dB Steps Output Voltage VOUT 0 to 5 V 50 0 to 10 V Hi Z Gen...

Страница 15: ...Si Switchable Gain Detector OEM Chapter 6 Specifications Rev A April 5 2021 Page 13 6 2 Mechanical Drawing...

Страница 16: ...to other Thorlabs products such as Pure OEM products that means assemblies to be built into a unit by the user e g OEM laser driver cards Components Mechanics and optics Left over parts of units disa...

Страница 17: ...ation USA Canada and South America Thorlabs Inc sales thorlabs com techsupport thorlabs com UK and Ireland Thorlabs Ltd sales uk thorlabs com techsupport uk thorlabs com Europe Thorlabs GmbH europe th...

Страница 18: ...www thorlabs com...