LX5537 Datasheet, PDF (1/2 Pages) Microsemi Corporation – InGaP HBT 2.3 - 2.7 GHz Power Amplifier

LX5537
TM
®
InGaP HBT 2.3 – 2.7 GHz Power Amplifier
PRODUCTION DATA SHEET
DESCRIPTION
The LX5537 is a power amplifier LX5537 also features an on-chip
optimized for 802.16e(WiMAX/WiBro) power detector at the output port of
and 802.11b/g/n applications in the 2.3- the PA to help reduce BOM cost and
2.7 GHz frequency range. The PA is PCB space for implementation of
implemented as a three-stage monolithic power control in a typical wireless
microwave integrated circuit (MMIC) system. The 26dB attenuation
with active bias, on-chip input matching function can optionally be used to
and output pre-matching.
reach low gain mode.
The device is manufactured with an The LX5537 is available in a 16-
InGaP/GaAs Heterojunction Bipolar pin 3mm x 3mm quad flat no lead
Transistor (HBT) IC process package (QFN 3×3-16L). The
(MOCVD). It operates with a single compact footprint, low profile, and
positive voltage supply of 3-4.2V, and excellent thermal capability make the
provides power gain of 31dB and output LX5537 an ideal solution for
powers of +23.5dBm at 3.6V and +25 WiMAX/WiBro as well as
dBm at 4.2V for 2.5% EVM in the 2.5- 802.11b/g/n applications.
2.7GHz.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
BLOCK DIAGRAM
Vc
KEY FEATURES
ƒ Advanced InGaP HBT
ƒ 2.3-2.7GHz Operation
ƒ Single-Polarity 3-4.2V Supply
ƒ Power Gain ~ 31 dB or higher
ƒ 23.5 dBm @2.5% EVM /3.6V
ƒ 25 dBm @2.5% EVM /4.2V
ƒ 24.5 dBm @4% EVM /3.6V
ƒ 26 dBm @4% EVM /4.2V
ƒ 22% Efficiency @24.5dBm/3.6V
ƒ Optional 26dB Attenuation
ƒ Complete On-Chip Input Match
ƒ Simple Output Match for
Optimal EVM
ƒ Temperature-Compensated
On-Chip Output Power Detector
with Wide Dynamic Range
ƒ Small Footprint: 3x3mm²
ƒ Low Profile: 0.9mm
APPLICATIONS
ƒ 802.16e WiMAX
ƒ 802.16e WiBro
ƒ 802.11b/g/n
RF
Input
Active Bias Network
Vref
RF
Output
Det
3X3MM QFN PACKAGE
MSC
5537
702A
PACKAGE ORDER INFO
LQ
Plastic QFN 3×3
16 pin
RoHS Compliant / Pb-free
LX5537LQ
Note: Available in Tape & Reel. Append the letters
“TR” to the part number. (i.e. LX5537LQ-TR)
Copyright © 2008
Rev. 1.0a, 2008-09-04
Microsemi
Analog Mixed Signal Group
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: [phone]
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