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ASB Inc.

• sales@asb.co.kr • Tel: +82-42-528-7223

February 2009

ASL19W

DC-3000 MHz High Linearity LNA MMIC

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

rated by 1 MHz.

Board Layout (FR4, 40x40 mm

Schematic

S-parameters & K-factor

Frequency (MHz)

900

2000

Magnitude S21 (dB)

19

13

Magnitude S11 (dB)

-7

-7

Magnitude S22 (dB)

-18

-18

Output P1dB (dBm)

22

22

Output IP3

37

37.5

Noise Figure (dB)

0.7

0.9

Supply Voltage (V)

5

5

Current (mA)

73

73

APPLICATION CIRCUIT

Low Noise

500 ~ 3500

+5 V

0

500

1000

1500

2000

2500

3000

3500

0

1

2

3

4

5

Frequency (MHz)

0

500

1000

1500

2000

2500

3000

3500

-20

-15

-10

-5

0

5

Frequency (MHz)

-40

25

85

0

500

1000

1500

2000

2500

3000

3500

-30

-25

-20

-15

-10

-5

0

Frequency (MHz)

-40

25

85

0

500

1000

1500

2000

2500

3000

3500

0

5

10

15

20

25

30

Frequency (MHz)

-40

25

85

voltage drop resistor is added to apply 4.4 V

to the device. A user can easily REDUCE an

values with minimized loss only in OIP3 and

P1dB.

C1=100 pF

L1=39 nH

C2=100 pF

Vcc=5 V

RF IN

RF OUT

C3=100 pF

C4=10 nF

ASL19W

D1=5.6V

Zener Diode

L2=39 nH

4.5 mm

R =6.2 k

Ω

B

D

R =8.2

Ω