ATF-331M4

Low Noise Pseudomorphic HEMT

in a Miniature Leadless Package

Data Sheet

Description

Avago Technologies’s ATF-331M4 is a high linearity, low

noise pHEMT housed in a miniature leadless package.

The ATF-331M4’s small size and low profile makes it

ideal for the design of hybrid modules and other space-

constraint devices.

Based on its featured performance, ATF-331M4 is ideal for

the first or second stage of base station LNA due to the

excellent combination of low noise figure and enhanced

linearity[1]. The device is also suitable for applications

in Wireless LAN, WLL/RLL, MMDS, and other systems

requiring super low noise figure with good intercept in

the 450 MHz to 10 GHz frequency range.

Note:

1. From the same PHEMT FET family, the smaller geometry ATF-34143

may also be considered for the higher gain performance, particularly

in the higher frequency band (1.8 GHz and up).

Features

 Low noise figure

 Excellent uniformity in product specifications

 1600 micron gate width

 Miniature leadless package 1.4 mm x 1.2 mm x 0.7 mm

 Tape-and-reel packaging option available

Specifications

2 GHz; 4 V, 60 mA (Typ.)

 0.6 dB noise figure

 15 dB associated gain

 19 dBm output power at 1 dB gain compression

Applications

 Tower mounted amplifier, low noise amplifier and

driver amplifier for GSM/TDMA/CDMA base stations

 LNA for WLAN, WLL/RLL, MMDS and wireless data

infrastructures

 General purpose discrete PHEMT for other ultra low

noise applications

MiniPak 1.4 mm x 1.2 mm Package

Pin Connections and Package Marking

Note:

Top View. Package marking provides orientation, product identification

and date code.

“P” = Device Type Code

“x” = Date code character. A different character is assigned for each

month and year.

Px

Source

Pin 3

Gate

Pin 2

Source

Pin 1

Drain

Pin 4

Px