PCS (A-G) / UMTS Band 2 Tx Bandpass Filter
The Avago ACPF-7005 is a miniaturized Bandpass Filter
designed for use in handsets and mobile data terminals
operating in the PCS (Blocks A-G)/UMTS Band 2 Tx fre-
quency range (1850.6 – 1914.4 MHz).
In typical cellular phone architectures, this transmit ﬁlter
is placed between the driver ampliﬁer and the power
ampliﬁer. The high out-of-band rejection of the ACPF-7005
enhances receiver sensitivity by reducing noise in the Rx
band which would otherwise be ampliﬁed by the transmit
chain. The high rejection feature keeps unwanted signals
out of the receive path.
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
The ACPF-7005 is designed with Avago Technologies’ in-
novative 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 tech-
nology. 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.
• 50 Ω Input/Output
• High rejection enables elimination of switches
• Miniature Size
– 1.6 x 2.0 mm size
– 1.1 mm Max Height
• High Power Rating
– +30 dBm Abs Max Tx Power
– RoHS 6 Compliant
– Halogen free
– TBBPA Free
• Performance guaranteed –10° to +85°C
– Tx Band Insertion Loss: 3.5 dB Max
– Rx Band Rejection: 33 dB Min
Handsets or data terminals operating in the PCS (Blocks
A-G)/UMTS Band 2 frequency range.
Functional Block Diagram