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Preliminary

Product Description

Sirenza Microdevices鈥?SZA-5044 is a high efficiency class

AB Heterojunction Bipolar Transistor (HBT) amplifier

housed in a low-cost surface-mountable plastic package.

This HBT amplifier is made with InGaP on GaAs device

technology and fabricated with MOCVD for an ideal com-

bination of low cost and high reliability.

This product is specifically designed as a final stage for

802.11a equipment in the 4.9 - 5.9 GHz band for a 5V sup-

ply. Optimized on-chip impedance matching circuitry pro-

vides a 50鈩?nominal RF input impedance. A single

external output matching circuit covers the entire 4.9-

5.9GHz band simultaneously. The external output match

allows for load line optimization for other applications or

optimized performance over narrower bands.

SZA-5044

4.9 鈥?5.9 GHz 5V Power Amplifier

4mm x 4mm QFN Package

鈥?/div>

Product Features

802.11a 54Mb/s Class AB Performance

Pout = 21.5dBm @ 3% EVM, 5V, 310mA

High Gain = 28dB

Output Return Loss < -11dB for Linear Tune

On-chip Output Power Detector

P1dB = 29dBm @ 5V

Simultaneous 4.9- 5.9GHz Performance

Robust - Survives RF Input Power = +15dBm

Power up/down control < 1碌s, Vpc 2.9V to 5V

Functional Block Diagram

Vcc

Pow er

Up/Dow n

Control

Activ e

Bias

Activ e

Bias

Activ e

Bias

RFIN

RFOUT

Applications

Pow er Detector

Vout

Key Specifications

Symbol

f

O

P

1dB

S

21

Pout

NF

IRL

ORL

Vdet Range

Icq

I

VPC

R

th, j-l

Parameters: Test Conditions, App circuit page 4

Z

0

= 50鈩? V

CC

= 5.0V, Icq = 220mA, T

BP

= 25潞C

Frequency of Operation

Output Power at 1dB Compression 鈥?5.15 GHz

Output Power at 1dB Compression 鈥?5.875 GHz

Gain at 5.15 GHz

Gain at 5.875 GHz

鈥?/div>

802.11a WLAN, OFDM

5.8GHz ISM Band

Fixed Wireless, UNII, 802.16 WiMAX

Unit

MHz

dBm

dB

dBm

dB

V

mA

潞C/W

185

10

7

Min.

4900

28.0

26.5

27.2

24.4

29.5

28.0

29.2

26.4

22

21

6.3

15

11

0.8 to 1.9

220

1.7

24

255

31.2

28.4

Typ.

Max.

5900

Output power at 3% EVM 802.11a 54Mb/s - 5.15GHz

Output Power at 3% EVM 802.11a 54Mb/s - 5.875GHz

Noise Figure at 5.875 GHz

Worst Case Input Return Loss 5.15-5.875GHz

Worst Case Output Return Loss 5.15-5.875GHz

Output Voltage Range for Pout=10dBm to 26dBm

Vcc Quiescent Current

Power Up Control Current, Vpc=5V ( I

VPC1

+ I

VPC2

+ I

VPC3

)

Thermal Resistance (junction - lead)

The information provided herein is believed to be reliable at press time. Sirenza Microdevices assumes no responsibility for inaccuracies or ommisions.

Sirenza Microdevices assumes no responsibility for the use of this information, and all such information shall be entirely at the user鈥檚 own risk. Prices and specifications are subject to change without

notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. Sirenza Microdevices does not authorize or warrant any Sirenza Microdevices product

for use in life-support devices and/or systems.

303 South Technology Court Broomfield, CO 80021

Phone: (800) SMI-MMIC

1

http://www.sirenza.com

EDS-103585 Rev C

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描述

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SZA5044

英文版

4.9 - 5.9 GHz 5V Power Amplifier

ETC

SZA5044
SZA5044

英文版

4.9 - 5.9 GHz 5V Power Amplifier

ETC [ETC]

SZA5044

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