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Summary of Contents for 1421

Page 1: ...Models 1421 and 1422 User s Manual Broadband Amplifiers ...

Page 2: ...2 Is a registered trademark of New Focus Inc 142101 Rev A ...

Page 3: ...ecifications 3 4 5 8 Warranty New Focus Inc guarantees its products to be free of defects for one year from the date of shipment This is in lieu of all other guarantees expressed or implied and does not cover inci dental or consequential loss 3 ...

Page 4: ... use as low noise amplifiers following a high speed photodetector such as the Model Series 14XX and 10XX These amplifiers are specified over a 50 MHz to 20 GHz bandwidth and have good small signal step response as well This makes them suitable for both time and frequency domain applications ...

Page 5: ...is made by removing the left most screw on the battery cover of a Series 10XX detector or using the hole provided on a Series 14XX detec tor The RF connectors should then be mated but not fully torqued Next use a 1 8 Allen wrench or ball driver to fasten the captive screw to the pho todetector Finally tighten the RF connectors to their proper torque To allow proper alignment of the RF connectors t...

Page 6: ...n If the Model 1421 or 1422 is to be used with the Model 0901 use the Microtech to Microtech con nector cable only If the Model 1421 or 1422 is to be used with a power supply other than the Model 0901 use the Microtech to banana cable and observe the following precautions Input voltage range is 15 to 8 V at 250 mA on the positive red banana plug Input voltage range is 15 to 8 V at 100 mA on the ne...

Page 7: ... modules 4 26 109 2 Power Connector 15 V Fastener for use with Model 10XX or 14XX detectors K connector Male Output Connector K connector Female Input Connector 1 51 38 14 3 74 94 8 2 00 50 8 2 00 50 8 Model 10XX or 14XX Detectors Not Included 05 20 GHz Amplifier 1421 7 ...

Page 8: ... frequency bandwidth For instance the 1421 has a gain that varies from 7 dB to 10 dB In terms of voltage gain this is the variation from 2 2 to 3 2 2 In a 50 Ω system 10 dBm 1 0 V peak 3 The VSWR is the Voltage Standing Wave Ratio It is the ratio between a maximum and a minimum of a standing wave that occurs because of the impedance mismatch A VSWR value of 1 indicates a perfectly matched system F...

Page 9: ...requency bandwidth For instance the 1421 has a gain that varies from 7 dB to 10 dB In terms of voltage gain this is the variation from 2 2 to 3 2 2 In a 50 Ω system 10 dBm 1 0 V peak 3 The VSWR is the Voltage Standing Wave Ratio It is the ratio between a maximum and a minimum of a standing wave that occurs because of the impedance mismatch A VSWR value of 1 indicates a perfectly matched system For...

Page 10: ...2 Typical response of the Models 1421 and 1422 amplifiers to a 120 mV 50 ps positive step function input 0 500 0 40 0 00 50 ps div 0 0 1 0 Model 1421 Model 1422 Model 1421 Output Volts Model 1422 Output Volts ...

Page 11: ...11 Fig 3 Typical frequency response of the Models 1421 and 1422 Amplifiers 0 5 10 15 20 0 4 8 12 16 20 24 Frequency GHz Gain dB Model 1421 Model 1422 ...

Page 12: ...12 Notes ...

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