ACPF-7003 Datasheet, PDF (1/8 Pages) AVAGO TECHNOLOGIES LIMITED – High Rx and Image Rejection Tx Filter for US PCS Band

ACPF-7003
High Rx and Image Rejection Tx Filter for US PCS Band
Data Sheet
General Description
Features
The ACPF-7003 is a high rejection full band transmit filter
designed for US PCS handsets. Its performance rivals split-
band surface acoustic wave (SAW) transmit filters.Since a
single filter provides the rejection, no switches are required,
saving board space and external components, eliminat-
ing switch loss, and reducing programming complexity.
Furthermore, with 25dB rejection at 1830 MHz, it is a true
split band replacement.
The ACPF-7003 FBAR transmit filter utilizes Avago Tech-
nologies’ Microcap bonded-wafer chip scale packaging
technology. This process allows the ultra small filters
to be assembled into a Molded Chip on Board (MCOB)
Module.
• High rejection from a single filter with no switches
required
• True split band replacement
• Passband: 1850-1910 MHz
• 35 dB min Attenuation, 1930-1990 MHz
• 2.5 dB Typical Insertion Loss
• 25dB image rejection at 1830 MHz
• Space saving solution
- Small footprint: 1.6 x 2.0-mm solution
- Low profile package: 0.9 mm high (Typ)
- 1.0mm (Max)
In typical cellular phone architectures, the transmit filter
fits between the driver amplifier and the power amplifier.
This filter reduces the noise in the Rx band being ampli-
fied by the transmit chain, enhancing receiver sensitivity.
High rejection keeps unwanted signals out of the receive
path.
Applications
• US PCS band handsets
• Wireless Data terminals
Avago Technologies’ thin-Film Bulk Acoustic Resonator
(FBAR) technology makes possible high-Q filters at a frac-
tion their usual size.