ACMD-7409 Datasheet, PDF (1/10 Pages) AVAGO TECHNOLOGIES LIMITED – Miniature PCS Band Duplexer

ACMD-7409
Miniature PCS Band Duplexer
Data Sheet
Description
The Avago ACMD-7409 is a miniature duplexer designed
for US PCS handsets.
The ACMD-7409 is designed with Avago Technologies’
Film Bulk Acoustic Resonator (FBAR) technology, which
makes possible ultra-small, high-Q filters at a fraction of
their usual size.
The ACMD-7409 also utilizes Avago’s innovative Microcap
bonded-wafer, chip scale packaging technology. This
process allows the filters to be assembled in a molded
chip-on-board module that is less than 1.3 mm high with
a footprint of only 3.8 x 3.8 mm.
The ACMD-7409 enhances the sensitivity and dynamic
range of PCS receivers by providing more than 54 dB
attenuation of the transmitted signal at the receiver input
and more than 45 dB rejection of transmit-generated
noise in the receive band.
Maximum Insertion Loss in the Tx channel is only 3.5 dB,
which minimizes current drain from the power amplifier.
Insertion Loss in the Rx channel is 3.8 dB max, improving
receiver sensitivity.
The excellent power handling capability of the FBAR bulk-
mode resonators supports the high output power levels
needed in PCS handsets while adding virtually no distor-
tion.
The ACMD-7409 is an environmentally green version of
the ACMD-7402 duplexer.
Features
• Miniature size
– 3.8 x 3.8 mm footprint size
– 1.3 mm max height
• High power rating size
– +33 dBm max Tx power
• Environmental
– RoHS Compliant
– Halogen Free
– TBBPA Free
Specifications
• Performance guaranteed –30 to +85°C
• Rx band performance (1930.5 – 1989.5 mHz) size
– Insertion loss: 3.8 dB max size
– Noise blocking: 43 dB min
• Tx band performance (1850.5 – 1909.5 mHz) size
– Insertion loss: 3.5 dB max size
– Interferer blocking: 52 dB min
Applications
• Handsets or data terminals operating in the US PCS
frequency band
Functional Block Diagram
ANT PORT 3
Tx
PORT 1
Rx
PORT 2