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ASB Inc.

 sales@asb.co.kr  Tel: +82-42-528-7225

February 2017

ASF255

5 ~ 3000 MHz MMIC Amplifier

Parameters

Units

Typical

Frequency

MHz

70

150

300

450

900

150

Gain

dB

22.4

22.4

22.2

21.9

21.0

22.1

S11

dB

-15.5

-18.0

-18.0

-16.0

-11.0

-18.0

S22

dB

-15.5

-20.0

-20.0

-20.0

-13.0

-20.0

dBm

39.0

42.0

42.0

40.0

38.0

40.0

Noise Figure

dB

2.2

2.2

2.3

2.3

2.3

2.2

Output P1dB

dBm

22.5

23.0

23.0

23.0

22.5

22.0

Current

mA

103

103

103

103

103

90

Device Voltage

V

+5.0

+5.0

+5.0

+5.0

+5.0

+4.5

1) OIP3 is measured with two tones at an output power of +8 dBm/tone separated by 1 MHz.

Parameters

Units

Min

Typ

Max

Testing Frequency

MHz

150

Gain

dB

22.4

S11

dB

-18

S22

dB

-20

Output IP3

dBm

42.0

Noise Figure

dB

2.2

Output P1dB

dBm

23.0

Current

mA

103

Device Voltage

V

+5.0

Parameters

Rating

Operating Case Temperature

-40 to

85 C

Storage Temperature

-40 to

150 C

Device Voltage

+7 V

Operating Junction Temperature

+150

C

+23 dBm

Thermal Resistance

92

C/W

1) Please find the max. input power data from http://www.asb.co.kr/pdf/Maximum_Input_Power_Analysis.pdf

Features

Description

Typical Performance

Absolute Maximum Ratings



22.4 dB Gain at 150 MHz



23 dBm P1dB at 150 MHz



42 dBm Output IP3 at 150 MHz



2.2 dB NF at 150 MHz



MTTF > 100 Years



Single Supply



Minimal External Components

The ASF255, a IF gain block amplifier MMIC, has a

high linearity, high gain, and high efficiency over a

wide range of frequency, being suitable for use in

both receiver and transmitter of telecommunication

systems up to 3 GHz. It has an active bias network

for stable current over temperature and process

variation. The amplifier is available in a SOT89

package and passes through the stringent DC, RF,

and reliability tests.

Product Specifications

ASF255

Package Style: SOT89

Application Circuit

 IF (50 ~ 1000 MHz, 5 V)

 IF (50 ~ 1000 MHz, 4.5 V, 90 mA)

 SMATV (50 ~ 2150 MHz, 5 V)

 IF (50 ~ 1000 MHz, 6 V)

Pin Configuration

Pin No.

Function

1

RF IN

2

GND

3

RF OUT & Bias