5/5

ASB Inc. · sales@asb.co.kr · Tel: +82-42-528-7223

October 2012

ASF250

5-1000 MHz MMIC Amplifier

0

250

500

750

1000

0

5

10

15

20

25

Frequency (MHz)

0

250

500

750

1000

-30

-25

-20

-15

-10

-5

0

Frequency (MHz)

0

250

500

750

1000

-25

-20

-15

-10

-5

0

Frequency (MHz)

1) OIP3 is measured with two tones at an output power of +9dBm/tone separated by

1 MHz.

C1=1 mF

L1=330 nH

C2=1 mF

Vs=6 V

RF IN

RF OUT

C3=100 pF

C4=1 mF

ASF250

Board Layout (FR4, 40x40 mm

Schematic

S-parameters & K-factor

APPLICATION CIRCUIT

Frequency (MHz)

70

150

300

450

900

Magnitude S21 (dB)

17.5

17.2

17.1

17.0

16.4

Magnitude S11 (dB)

-15

-20

-20

-18

-10

Magnitude S22 (dB)

-17

-20

-18

-15

-10

Output P1dB (dBm)

23.5

24

24

24

24

Output IP3

39.5

42.5

42.5

40.0

38.0

Noise Figure (dB)

2.6

2.6

2.8

2.8

2.8

Device Voltage (V)

6

6

6

6

6

Device Current (mA)

115

115

115

115

115

50 ~ 1000

+6 V