hittite HMC287MS8 User Manual

查询HMC287MS8供应商

MICROWAVE CORPORATION

Typical Applications

8

LNA for Spread Spectrum Applications:

• BLUETOOTH

• HomeRF

• 802.11 WLAN

• 2.5 GHz Radios

Functional Diagram

AMPLIFIERS - SMT

v01.0701

HMC287MS8

GaAs MMIC LOW NOISE AMPLIFIER

with AGC, 2.3 - 2.5 GHz

Features

Gain: 21 dB

Noise Figure: 2.5 dB

Gain Adjustment: 30 dB

Single Positive Supply: +3V

No External Components

Ultra Small Package: MSOP8G

General Description

The HMC287MS8 is a low cost Low Noise Ampli­fi er (LNA) offering 21 dB of gain and a 2.5 dB noise
fi gure from a single positive +3V supply that requires
only 9 mA. The HMC287MS8G can be used as a
variable gain LNA, offering 30 dB of gain control,
which is controlled with a 0 to 3V analog voltage.
The typical output 1dB compression point is +3
dBm and OIP3 is +7 dBm when in the maximum
gain state. The compact LNA design utilizes on­chip matching for repeatable gain and noise fi gure
performance and eliminates the need for external
matching circuitry to reduce the overall size of the
LNA function.

8 - 28

Electrical Specifi cations, T

Parameter Min. Typ. Max. Units

Frequency Range 2.3 - 2.5 GHz

Gain 15 21 27 dB

Gain Variation Over Temperature 0.03 0.04 dB/°C

Gain Adjustment Range (Vctl 0 to +3V) 30 dB

Noise Figure (Vctl = 0V) 2.5 3.0 dB

Input Return Loss 5 10 dB

Output Return Loss 3 6 dB

Output 1 dB Compression (P1dB) -2 3 dBm

Output Third Order Intercept (IP3) 3 7 dBm

Control Voltage (Vctl) 0 Vdd Vdc

Supply Current (Idd)(Vdd = +3.0 Vdc) 9 15 mA

For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]

= +25° C, Vdd= +3V

A

Order Online at www.hittite.com

MICROWAVE CORPORATION

v01.0701

HMC287MS8

GaAs MMIC LOW NOISE AMPLIFIER

Broadband Gain
& Return Loss, Vctl = 0V

35

30

25

20

15

10

5

0

Response (dB)

-5

-10

-15

-20

-25

1.6 1.8 2 2.2 2.4 2.6 2.8 3

FREQUENCY (GHz)

Gain vs. Temperature, Vctl = 0V

30

25

20

GAIN (dB)

15

10

2.2 2.3 2.4 2.5 2.6

FREQUENCY (GHz)

+ 85 C

-40 C
+25 C

S21
S11
S22

with AGC, 2.3 - 2.5 GHz

Gain Over Control Voltage Range

25

20

15

10

5

Gain (dB)

0

-5

-10

-15

2.2 2.3 2.4 2.5 2.6

FREQUENCY (GHz)

Noise Figure
vs. Temperature, Vctl = 0V

5

4.5

4

3.5

3

2.5

2

1.5

NOISE FIGURE (dB)

1

0.5

0

2.2 2.3 2.4 2.5 2.6

FREQUENCY (GHz)

0V

1.2V

1.8V

2.4V

3V

+25 C
+85 C

-40 C

8

AMPLIFIERS - SMT

Input Return Loss
vs. Temperature, Vctl = 0V

0

-5

-10

-15

INPUT RETURN LOSS (dB)

-20

2.2 2.3 2.4 2.5 2.6

FREQUENCY (GHz)

For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]

Output Return Loss
vs. Temperature, Vctl = 0V

0

+85 C

-40 C
+25 C

Order Online at www.hittite.com

-5

-10

-15

OUTPUT RETURN LOSS (dB)

-20

2.2 2.3 2.4 2.5 2.6

FREQUENCY (GHz)

+85 C

-40 C
+25 C

8 - 29