Avago replaces ACMD-7402 with greener version
An Avago Technologies product story
Edited by the Electronicstalk editorial team Jun 8, 2009
Avago Technologies has added an environmentally friendly PCS FBAR Band Duplexer to its series of miniature duplexers.
The ACMD-7409 duplexer, which was designed using Avago's FBAR technology, targets designers of PCS handsets and data terminals operating in the US PCS frequency band.
Avago's ACMD-7409 is a drop-in replacement and an environmentally friendly version of its ACMD-7402 duplexer.
It uses Avago's Microcap bonded-wafer chip scale packaging technology.
This process allows the filters to be assembled in a moulded chip-on-board module that is less than 1.3mm high, with a footprint of 3.8 x 3.8mm.
This FBAR duplexer enhances the sensitivity and dynamic range of PCS receivers by providing more that 54dB attenuation of the transmitted signal at the receiver input and more than 45dB rejection of transmit-generated noise in the receive band.
Maximum insertion loss in the Tx channel is only 3.5dB, which minimises current drain from the power amplifier.
Insertion loss in the Rx channel is a maximum of 3.8dB to improve receiver sensitivity.
The superior power-handling capability of the FBAR bulk-mode resonators supports the high-output power levels needed in PCS handsets, but adds little distortion.
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