Fully Integrated Filter Front End Module For GPS-Equipped Dual-Band CDMA Handsets

The result is that GPS-equipped dual-band handsets can be made thinner, the radio-frequency electronics smaller, and at a lower cost to manufacture, with longer overall battery life and improved performance. The quintplexer module is the latest in a series of technological breakthroughs in FBAR duplexers, enabling Avago Technologies to gain more than 75 percent of the bulk acoustic wave market according to Strategy Analytics.

The ACFM-7101 utilizes Avago's FBAR filter process and innovative microcap bonded-wafer chip scale packaging technology to achieve a small 5 mm by 8 mm by 1.3 mm thick module. This small module size, along with the saving of additional board space for components, routing, and antenna, gives handset designers flexibility in design.

Avago's quintplexer module is compatible with both the conventional CDMA (Code Division Multiple Access) technology and the WCDMA (Wideband Code Division Multiple Access) third generation (3G) technology that supports voice, data, images, and video communications at speeds up to 2Mb/s. The ACFM-7101 is also an excellent choice for small PC cards, PDAs and other dual-band wireless devices.

Performance of the ACFM-7101 is specified from antenna port through to the receive port and from the antenna through to the transmit port. This eliminates customer routing, matching, and switching losses associated with a discrete solution. Cell duplexer transmit path loss from transmitter input port to antenna output port is a low 2.0 dB. PCS duplexer transmit path loss from transmitter input port to antenna output port is a low 3.0 dB.

Avago is currently shipping the ACFM-7101 FBAR quintplexer module to two of the top three CDMA handset manufacturers in production quantities.