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

January 2011

ASL425

200-4000 MHz MMIC Amplifier

1) OIP3 is measured with two tones at an output power of +10 dBm/tone se-

parated by 1 MHz.

Board Layout (FR4, 40x40 mm

Schematic

S-parameters & K-factor

APPLICATION CIRCUIT

206.5 MHz

+5 V

Frequency (MHz)

206.5

Magnitude S21 (dB)

37.5

Magnitude S11 (dB)

-17

Magnitude S22 (dB)

-10

Output P1dB (dBm)

29.5

Output IP3

40

Noise Figure (dB)

2.4

Device Voltage (V)

5

Current (mA)

350

C1=100 pF

Vs=5 V

RF IN

RF OUT

C6=100 pF

ASL425

D1=5.6V

Zener Diode

L1=120 nH

(Coil Inductor)

C2=100 pF

C4=18 pF

L5=56 nH

C5=10 pF

C7=1 mF

C8=100 pF

C9=1 mF

L2=47 nH

C3=27 pF

4 mm

L4=15 nH

R1=180 W

L3=18 nH

R2=6.2 kW

R3=8.2 W

0

50

100

150

200

250

300

350

400

0

10

20

30

40

50

Frequency (MHz)

0

50

100

150

200

250

300

350

400

-25

-20

-15

-10

-5

0

Frequency (MHz)

0

50

100

150

200

250

300

350

400

-20

-15

-10

-5

0

5

Frequency (MHz)

0

500

1000

1500

2000

2500

3000

3500

0

1

2

3

4

5

Frequency (MHz)