Application Notes

This document answers common questions relating to the usage of the ADF4350, ADF4351, and their evaluation boards. v0.12 September 2014 PHASE NOISE (dBc/Hz) FREQUENCY OFFSET FROM CARRIER (Hz) -80 1 k 10 k 100 k 1 M 10 M -100 -120 -140 -160 LOOP FILTER BANDWIDTH Changing the loop filter bandwidth will change the dynamic response of the loop. Optimize profile using ADIsimPLL for application’s phase noise/jitter requirement. Phase Noise and Loop Filter Links ADIsimPLL: http://www.analog.com/adisimpll ADF4350 product page:

This application note documents the results of using the ATF-10136 as an active mixer at S band and the ATF-13736 and ATF-13484 at Ku band. The ATF-10136 is a 500 m gate periphery MESFET device that typically provides a 0.6 dB noise figure in LNA applications at S band. As an active mixer the ATF-10136 is capable of SSB noise figures as low as 4.5 dB with several dB of conversion gain. Both the ATF-13736 and the ATF-13484 are

A series of general purpose RF Schottky diodes has been introduced in the SOT-23 package. One of these diodes, the HSMS-2822, is a matched series pair, an ideal configuration for a balanced mixer. This note describes the procedure for designing the impedance matching circuit for a 2GHz mixer using the HSMS-2822. A conversion loss of 6.6dB was achieved Back to summary Back to Home

Hewlett-Packard’s HBFP-0405 and HBFP-0420 are high performance isolated collector silicon bipolar transistors housed in 4-lead SC-70 (SOT- 343) surface mount plastic packages. Both the HBFP-0405 and HBFP-0420 are described in three low noise amplifiers for use in the 1800 to 1900 MHz frequency range. The amplifiers are designed for use with 0.032 inch thickness FR-4 printed circuit board material. The HBFP-0405 amplifier is biased at a Vce of 2 V and Ic of 5 mA. The amplifier provides a