MGA-31489

0.1W High Gain Driver Amplifier

1.5GHz ~ 3GHz

Data Sheet

Description

Avago Technologies MGA-31489 is a high performance

Driver Amplifier MMIC, housed in a standard SOT-89 plastic

package. The device features flat high gain with excellent

input and output return loss, as well as superior linearity

performance. The device can be easily matched to obtain

desired performance.

MGA-314389 is especially ideal for 50

Ω wireless infrastruc-

ture application within the 1.5 GHz to 3 GHz frequency

range applications. With high IP3 and low noise figure and

wideband operation, the MGA-31489 may be utilized as

a driver amplifier in the transmit chain and as a second

stage LNA in the receiver chain.

This device uses Avago Technologies proprietary 0.25

mm

GaAs Enhancement mode PHEMT process.

Pin connections and Package Marking

Note:

Top View: Package marking provides orientation and identification

“14” = Device Code

“X” = Date Code character indentifies month of manufacturing

Features

• ROHS compliant

• Halogen free

• High gain, with good gain flatness

• Low noise figure

• Advanced enhancement mode PHEMT Technology

• Excellent uniformity in product specification

• SOT-89 standard package

Specifications

At 1.9 GHz, Vd = 5 V, Id = 69 mA (typ) @ 25° C

• OIP3 = 37.3 dBm

• Noise Figure = 1.9 dB

• Gain = 19.5 dB, Gain Flatness (± 50 MHz) = 0.11 dB

• P1dB = 21.9 dBm

• IRL = 17.2 dB, ORL = 10.1 dB

Note:

1. The MGA-31489 has a superior LFOM of 11.9 dB. Linearity Figure of

Merit (LFOM) is essentially OIP3 divided by DC bias power.

Simplified Schematic

Attention: Observe precautions for

handling electrostatic sensitive devices.

ESD Machine Model = 120 V

ESD Human Body Model = 1400 V

Refer to Avago Application Note A004R:

Electrostatic Discharge, Damage and Control.

Figure 1. Simplified Schematic diagram

L

RFout

C

C

RFin

Vdd

C

C

C

L

14X

Top View

RFin

GND

RFout

#1

#2

#3

Bottom View

RFout

GND

RFin

#3

#2

#1