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

September 2011

ASX420

250-3500 MHz MMIC Amplifier

1) OIP3 is measured with two tones at an output power of +15 dBm/tone se-

parated by 1 MHz.

Board Layout (FR4, 40x40 mm

Schematic

S-parameters & K-factor

APPLICATION CIRCUIT

WCDMA

1920 ~ 2170 MHz

+5 V

Frequency (MHz)

1920~1980

2110~2170

Magnitude S21 (dB)

21.5

20.5

Magnitude S11 (dB)

-15

-14

Magnitude S22 (dB)

-15

-14

Output P1dB (dBm)

29.5

30

Output IP3 (dBm)

1)

46

46

Noise Figure (dB)

7.0

7.0

Device Voltage (V)

5

5

Current (mA)

370

370

1700

1800

1900

2000

2100

2200

2300

2400

0

5

10

15

20

25

30

Frequency (MHz)

1700

1800

1900

2000

2100

2200

2300

2400

-25

-20

-15

-10

-5

0

Frequency (MHz)

1700

1800

1900

2000

2100

2200

2300

2400

-25

-20

-15

-10

-5

0

Frequency (MHz)

0

500

1000

1500

2000

2500

3000

3500

0

1

2

3

4

5

Frequency (MHz)

C1=56 pF

C2=56 pF

Vcc=5 V

RF IN

RF OUT

C6=100 pF

C7=1 mF

ASX420

D1=5.6V

Zener Diode

L1=22 nH

(Coil Inductor)

C3=1.8 pF

C4=2 pF

L2=22 nH

2 mm

C8=100 pF

C9=1 mF

R1=3 W

C5=1.5 pF