DEMO-MGA-43228 Datasheet, PDF(1/19 Page) Broadcom Corporation. – (2.3–2.5) GHz 29dBm High Linearity Wireless Data Power Amplifi er

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DEMO-MGA-43228 Datasheet, PDF (1/19 Pages) Broadcom Corporation. – (2.3–2.5) GHz 29dBm High Linearity Wireless Data Power Amplifi er

MGA-43228

(2.3â2.5) GHz 29dBm High Linearity Wireless Data Power Amplifier

Data Sheet

Description

Avago Technologiesâ MGA-43228 is a power amplifier for

use in the (2.3-2.5)GHz band. High linear output power

at 5V is achieved through the use of Avago Technologiesâ

proprietary 0.25um GaAs Enhancement-mode pHEMT

process. It is housed in a miniature 5.0mm x 5.0mm x

0.85mm 28-lead QFN package. It also includes shutdown

and switchable gain functions. A detector is also included

on-chip. The compact footprint coupled with high gain

and high efficiency make the MGA-43228 an ideal choice

as a power amplifier for IEEE 802.16 (WiMAX) and WLL

applications.

Component Image

5.0 x 5.0 x 0.85 mm3 28-lead QFN Package (Top View)

Features

ï·ï High gain: 38.5dB

ï·ï High linearity performance: 29.2dBm at 5V supply (2.5%

EVM, 64-QAM Â¾ FEC rate OFDMA, 10MHz bandwidth)

ï·ï High efficiency: 16.1%

ï·ï Built-in detector and shutdown switches

ï·ï Switchable gain: 23.6dB attenuation using one single

CMOS compatible switch pin

ï·ï ETSI spectral mask compliant at 29dBm output power

ï·ï GaAs E-pHEMT Technology[1]

ï·ï Low cost small package size: 5.0 x 5.0 x 0.85 mm3

ï·ï MSL-2a and lead-free

ï·ï Usable at 3.3V supply for lower supply voltage

applications

Specifications

43228

YYWW

XXXX

RFin

Gnd

RFout

RFout

2.4GHz; Vdd = Vbias = 5.0V, Vc = 2.1V (R2 = 1.2kï, R3 =

300ï, R4 = 1.2kï as shown in Figure 36), Iqtotal = 500mA

RFout

(typ), IEEE 802.16e 64-QAM OFDMA, Â¾ FEC rate

Vbyp

ï·ï 38.5 dB Gain

ï·ï 29.2 dBm Linear Pout (2.5% EVM)

Notes:

Package marking provides orientation and identification

â43228â = Device part number

âYYWWâ = Year and work week

âXXXXâ = Assembly lot number

ï·ï 16.1% PAE @ Linear Pout

ï·ï 2.6V Vdet @ Linear Pout

ï·ï 23.6 dB Switchable Gain Attenuation

ï·ï 25ïA Shutdown Current

Functional Block Diagram

Vdd1 Vdd2 Vdd3

RFin

RFout

Gain switch and

bias circuitry

Applications

ï·ï High linearity amplifier for IEEE 802.16 fixed terminal

amplifier

ï·ï WLL amplifier

Note:

1. Enhancement mode technology employs positive Vgs, thereby

eliminating the need of negative gate voltage associated with

conventional depletion mode devices.

Vbyp Vc1 Vc2 Vc3 Vbias Vdet

▷