Avago Technologies

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Description

The AJAV-6751 is a complete, high-performance power

amplifier for WCDMA and HSPA wireless communications.

Based on a unique, patented architecture, the AJAV-6751

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-6751 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-6751 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 (0.9 mm typical)



Fifteen-pin surface mounting package



Small 3 mm × 4.2 mm package size



Internal 50-ohm matching networks for both RF input and

output



Three-mode power control with Vmode0 and Vmode1



Compatible with the APT application



Low average current



High capacity CMOS process



High-performance 3G power amplifier

—

UMTS Band 1 (1920 MHz ~ 1980 MHz)

—

UMTS Band 5 (824 MHz ~ 849 MHz)

—

WCDMA, HSPA, and HSPA+ compliant



Integrated Tx filtering

—

Delivers the 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 5 UTMS

Ordering Information

Part Number

Number of

Devices

Container

AJAV-6751-TR1

1,000

178 mm (7 in.) tape/reel

AJAV-6751

WCDMA/HSPA Band 1 and Band 5

3.0 mm × 4.2 mm Dual-Band

Power Amplifier Module

Product Brief