MAX2649 Datasheet, PDF (1/7 Pages) Maxim Integrated Products – 5GHz Low-Noise Amplifier with Shutdown

19-2492; Rev 1; 8/03
5GHz Low-Noise Amplifier with Shutdown
General Description
The MAX2649 high-linearity, silicon-germanium (SiGe)
low-noise amplifier (LNA) is designed for 5GHz wireless
LAN systems based on IEEE802.11a and HiperLAN2
standards. The MAX2649 achieves a 2.1dB noise figure,
17dB gain, and 0dBm IIP3, making it ideal as a first-
stage LNA in 5GHz OFDM WLAN radio systems.
This device operates over a +2.7V to +3.6V supply
range and features low overall current consumption
(12.5mA). The MAX2649 also includes a shutdown
mode to save power when the receiver is inactive.
The LNA is designed on a low-noise, advanced SiGe
process optimized for high-frequency applications. The
device is available in a tiny 2 × 3 chip-scale package
(UCSP™⁾ (1mm × 1.5mm).
Applications
IEEE802.11a Wireless LAN
ETSI HiperLAN2 WLAN
5GHz ISM Radios
5GHz Cordless Phones
Features
o 4.9GHz to 5.9GHz Wideband Operation
o Low-Noise Figure: 2.1dB
o High Gain: 17dB
o High IIP3: 0dBm
o Shutdown Mode
o +2.7V to +3.6V Single-Supply Operation
o 1mm × 1.5mm UCSP
Ordering Information
PART
MAX2649EBT-T
TEMP RANGE
-40^oC to +85^oC
PIN-PACKAGE
2 x 3 UCSP*
*Requires special solder temperature profile described in the
Absolute Maximum Ratings section.
UCSP is a trademark of Maxim Integrated Products, Inc.
Pin Configuration appears at end of data sheet.
Functional Diagram/Typical Operating Circuit
RF INPUT
TRANSMISSION LINE
RFIN
GND
A1
A2
A3
BIAS
MAX2649
SHUTDOWN CONTROL
B1
B2
B3
V_{CC GND}
RFOUT
V_CC
RF OUTPUT
FOR LAYOUT AND DESIGN DETAILS, PLEASE REFER TO THE MAX2649 EV KIT.
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For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.