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8

HMC309MS8

GaAs MMIC 2.4 GHz FRONT-END

LNA / SWITCH

v03.0304

General Description

Features

Functional Diagram

The HMC309MS8 is a versatile integrated low noise

amplifier (LNA) and transmit/receive switch front-

end for 2.3 to 2.5 GHz spread spectrum applica-

tions. The LNA offers 8 dB gain and 2.5 dB noise

figure while the transmit switch path has 0.5 dB

insertion loss and better than +30 dBm linear power

handling. Using a single control line, the LNA is

powered down when the switch Tx port is selected

minimizing Idd current consumption to 5 mA in the

Rx mode and 200 uA in the Tx mode at Vdd = +3V

bias. The HMC309MS8 may be directly interfaced

with popular 2.4 GHz transceiver chips. At a height

of 0.040” (1.0mm), the MSOP8 package is ideal for

low profile portable wireless devices.

Gain: 8 dB

Noise Figure: 2.5 dB

Integrated LNA & Switch

Integrated Power Control:

+3V Operation

Ultra Small Package: MSOP8

Typical Applications

LNA & Transmit/Receive Switch

Front-End for 2.4 GHz Applications:

• 802.11 WLAN

• BLUETOOTH

• HomeRF

• ISM Radios

* The LNA P1dB & IP3 are referenced to the Rx pin output while the switch P1dB & IP3 are referenced to the Tx pin

Parameter

LNA (Rx) Path

Swtiched Path

Units

Min.

Typ.

Max.

Min.

Typ.

Max.

Frequency Range

2.3 - 2.5

2.3 - 2.5

GHz

Gain

5

8

10

-0.6

-0.4

dB

Gain Variation over Temperature

0.012

0.02

dB/°C

Noise Figure

2.5

3.8

0.45

dB

Input Return Loss

5

14

25

dB

Output Return Loss

13

16

20

dB

Output Power for 1 dB Compression (P1dB)*

2

6

30

33

dBm

Output or Input Third Order Intercept (IP3)*

5

8

27

40

dBm

Supply Current (Idd)

5

10

0.2

0.4

mA