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

September 2011

ASX423

100-4500 MHz MMIC Amplifier

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

rated by 1 MHz.

C1=100 pF

Vs=5 V

RF IN

RF OUT

C5=100 pF

ASX423

D1=5.6V

Zener Diode

L1=82 nH

(Coil Inductor)

C2=100 pF

C4=22 pF

L5=56 nH

C6=1 mF

C7=100 pF

C8=1 mF

L2=47 nH

C3=39 pF

L4=82 nH

R1=180 W

4 mm

L3=22 nH

3.5 mm

0

500

1000

1500

2000

2500

3000

3500

0

2

4

6

8

10

Frequency (MHz)

0

50

100

150

200

250

300

0

10

20

30

40

Frequency(MHz)

0

50

100

150

200

250

300

-30

-25

-20

-15

-10

-5

0

Frequency(MHz)

0

50

100

150

200

250

300

-30

-25

-20

-15

-10

-5

0

Frequency (MHz)

Board Layout (FR4, 40x40 mm

Schematic

S-parameters & K-factor

APPLICATION CIRCUIT

IF

150 MHz

+5 V

Frequency (MHz)

150

Magnitude S21 (dB)

33.5

Magnitude S11 (dB)

-17

Magnitude S22 (dB)

-13

Output P1dB (dBm)

29.5

Output IP3

44.5

Noise Figure (dB)

4.5

Device Voltage (V)

5

Current (mA)

400