AJAV-6781
WCDMA/HSPA Band 1 and Band 8
3.0 mm × 4.2 mm Dual-Band
Power Amplifier Module
Product Brief
Description
The AJAV-6781 is a complete, high-performance power
amplifier for WCDMA and HSPA wireless communications.
Based on a unique, patented architecture, the AJAV-6781
integrates circuitry for Tx filtering, RF coupling, power
regulation, input and output matching, and power control. The
PA (power amplifier) is powered by a connection to the battery
and is implemented in a standard CMOS process.
The AJAV-6781 contains integrated directional couplers,
50-ohm input and output matching networks and RF input and
output DC blocking capacitors. All of these functions are
integrated in a 15-pin surface-mount leadless package of 3 mm
× 4.2 mm form-factor and 0.9-mm thickness, so it can minimize
the number of external components.
The integrated LB and HB directional couplers are
daisy-chained internally. One coupler input port and one
coupler output port are shared by the both bands. The
AJAV-6781 has integrated on-chip Vref and on-module bias
switch, so the external LDO regulators and switches for
external Vref are not required. It also makes the PA fully
digital-controllable by the baseband chipset. The Ven pin turns
the PA on and off by the digital control signal. All of the digital
control input pins, such as the Ven, Vmode0, and Vmode1, are
fully CMOS compatible down to the 1.8V logic.
Features
Thin Package (0.9mm typ.)
15-pin surface mounting package
Small 3 x 4.2 mm package size
Internal 50 ohm matching networks for both RF input and
output
3-mode power control with Vmode0 and Vmode1
Compatible with APT application
Low average current
High capacity CMOS process
High-performance 3G power amplifier.
—
UMTS Band 1 (1920 ~ 1980 MHz)
—
UMTS Band 8 (880 ~ 915 MHz)
—
WCDMA, HSPA and HSPA+ compliant
Integrated Tx filtering
—
Delivers best noise in the industry
Integrated coupler
—
Coupler and Isolation ports for daisy chain
Green - Lead-free and RoHS compliant
Applications
Band 1 UMTS
Band 8 UTMS
Ordering Information
Part Number
AJAV-6781-TR1
Number of
Devices
1,000
Container
178 mm (7 in.) tape/reel
Avago Technologies
-1-
stm32/stm8
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