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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 +11 dBm/tone sepa-

rated by 1 MHz.

Board Layout (FR4, 40x40 mm

Schematic

S-parameters & K-factor

APPLICATION CIRCUIT

CDMA

824 ~ 894 MHz

+5 V

Frequency (MHz)

824~849

869~894

Magnitude S21 (dB)

34

32.5

Magnitude S11 (dB)

-14

-13

Magnitude S22 (dB)

-14

-15

Output P1dB (dBm)

30

30

Output IP3

45

45

Noise Figure (dB)

2.4

2.4

Device Voltage (V)

5

Current (mA)

400

C1=100 pF

Vcc=5 V

RF IN

RF OUT

C6=100 pF

ASX423

D1=5.6V

Zener Diode

L2=82 nH

(Coil Inductor)

C2=100 pF

C4=18 pF

L3=33 nH

C5=6 pF

C7=1 mF

C8=100pF

C9=1 mF

L1=33 nH

C3=4.7 pF

8 mm

L4=4.7 nH

600

700

800

900

1000

1100

1200

0

10

20

30

40

50

Frequency (MHz)

600

700

800

900

1000

1100

1200

-25

-20

-15

-10

-5

0

Frequency (MHz)

600

700

800

900

1000

1100

1200

-25

-20

-15

-10

-5

0

Frequency (MHz)

0

500

1000

1500

2000

2500

3000

3500

0

1

2

3

4

5

Frequency (MHz)