DESCRIPTION
The Avago In typical cellular phone architectures, this transmit filter is placed between the driver amplifier and the power amplifier. The Avago ACPF-7005 rivals split-band surface acoustic wave (SAW) transmit filters. As a high rejection, single filter solution, the ACPF-7005 eliminates the need for switching. This saves board space and external components, while eliminating switch loss and reducing programming complexity. The ACPF-7005 is designed with Avago Technologies’ innovative Film Bulk Acoustic Resonator (FBAR) technology, which makes possible ultra-small, high-Q filters at a fraction of their usual size. The excellent power handling capability of FBAR bulk-mode resonators supports the high output power levels used in mobile communications applications, while adding virtually no distortion. The ACPF-7005 also utilizes Avago Technologies’advanced Microcap bonded-wafer, chip scale packaging technology. This process allows this filters to be assembled into a molded chip-on-board module with an overall size of only 1.6 x 2.0 mm and maximum height of 1.1 mm.