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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 +12 dBm/tone se-

parated by 1 MHz.

0

1000

2000

3000

4000

5000

0

1

2

3

4

5

Frequency (MHz)

4000

4200

4400

4600

4800

-15

-10

-5

0

Frequency (MHz)

4000

4200

4400

4600

4800

-20

-15

-10

-5

0

Frequency (MHz)

4000

4200

4400

4600

4800

0

5

10

15

Frequency (MHz)

C1=3 pF

Vs=5 V

RF IN

RF OUT

C6=100 pF

ASX423

D1=5.6V

Zener Diode

L2=6.8 nH

(Coil Inductor)

C2=10 pF

C5=2 pF

L3=6.8 nH

C7=1 mF

C8=100pF

C9=1 mF

C4=0.5 pF

C3=0.5 pF

R1=4.7 W

Board Layout (FR4, 40x40 mm

Schematic

S-parameters & K-factor

APPLICATION CIRCUIT

4300 ~ 4500 MHz

+5 V

Frequency (MHz)

4300

4500

Magnitude S21 (dB)

10

10.5

Magnitude S11 (dB)

-9

-11

Magnitude S22 (dB)

-8

-7

Output P1dB (dBm)

27

23

Output IP3

41

39

Noise Figure (dB)

6.2

6.2

Device Voltage (V)

5

5

Current (mA)

400

400