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SiGe HBT MMIC LOW NOISE

AMPLIFIER, 1.2 - 3.0 GHz

v02.0706

General Description

Features

Functional Diagram

Single Supply: Vcc = +5V

Low Noise Figure: 1.3 dB

High Output IP3: +21 dBm

No External Matching Required

External Filter Access

3x3 mm Leadless SMT Package

Typical Applications

The HMC548LP3 / HMC548LP3E is ideal for:

• Automotive Telematics

• GPS Antenna Modules / Boosters

• Location Based Portables

• Satellite Navigation

The HMC548LP3 & HMC548LP3E are comprised of

two internally matched SiGe HBT MMIC low noise

amplifier stages housed in 3x3 mm leadless SMT

packages. The unique topology of the HMC548LP3

& HMC548LP3E provides interstage access allowing

the designer to place a bandpass filter between the

two amplifier stages. This filtering approach enables

the receiver to reject nearby blocking signals such

as those emitted from cellular and 3G hand-helds,

without

incurring

the

noise

figure

degradation

associated with a high rejection pre-filter. When

combined with the appropriate interstage bandpass

filter, this LNA can be used as a receiver pre-amplifier

in various applications from 1.2 to 3 GHz. Evaluation

boards are available with or without a GPS L1

(1575 MHz) band pass filter.

Parameter

Min.

Typ.

Max.

Units

Frequency Range

1575

MHz

Gain

23

26

dB

Gain Variation Over Temperature

0.04

0.05

dB/°C

Noise Figure

1.3

1.6

dB

Input Return Loss

8dB

Output Return Loss

22

dB

Output 1 dB Compression (P1dB)

11.5

dBm

Saturated Output Power (Psat)

12.5

dBm

Output Third Order Intercept (IP3)

21

dBm

Supply Current (Icc) (Vcc = +5V)

21

30

mA

* All measurements include external 1.57 - 1.6 GHz (GPS L1) band pass filter connected between pin 4 & pin 9.