Description
The CHM1291 is a multifunction chip (MFC) which integrates a LO buffer amplifier and a sub-harmonically balanced diodes mixer for 2LO suppression and image rejection. It is usable both for up-conversion and down-conversion. It is designed for a wide range of applications, typically commercial communication systems for broadband local access (LMDS). The backside of the chip is both RF and DC grounded. This helps simplify the assembly process.

Main Features
■ Broadband performance : 25-32GHz
■ 11dB conversion Loss
■ 15dBc image rejection
■ +5dBm LO input power
■ +1dBm input power (1dB gain comp.)
■ Low DC power consumption, 55mA@3.5V
■ Chip size : 2.06 x 1.25 x 0.10mm