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ASB Inc.

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

June 2012

ASL31X

XM 2-stage Low Noise Amplifier

1) IIP3 is measured with two tones at an input power of -36 dBm/tone separated by 1MHz.

ASL31X

RF OUT

C2=1.5 pF

C3=1

mF

R1=10

W

Vs=4.5 V

L2=22 nH

(LQG18HN15NJ00)

L4=3.9 nH

C4=1

mF

RF IN

C1=39 pF

L1=3.6 nH

(LQW18AN3N6D00)

L3=3.3 nH

C5=20 pF

XM

2338

+4.5 V

Parameter

Symbol

Test Conditions

MIN.

TYP.

MAX.

Unit

Power Gain

F = 2338 MHz

30

dB

Noise Figure

NF

F = 2338 MHz

0.7

dB

Input Return Loss

F = 2338 MHz

-18

dB

Output Return Loss

F = 2338 MHz

-18

dB

1 dB Gain Compression

Input Power

F = 2338 MHz

-12

dBm

3

Input Power

1)

IIP3

F = 2338 MHz

0

dBm

Circuit Current

F = 2338 MHz

Non-RF

45

mA

Schematic

Board Layout (FR4, 20x14 mm

Top

Bottom

S-parameters & K-factor

* Note: C4 must be placed as close as possible to the device.

APPLICATION CIRCUIT

(TYPE 1)

2100

2200

2300

2400

2500

2600

0

5

10

15

20

25

30

35

40

Frequency (MHz)

2100

2200

2300

2400

2500

2600

-30

-25

-20

-15

-10

-5

0

Frequency (MHz)

2100

2200

2300

2400

2500

2600

-30

-25

-20

-15

-10

-5

0

Frequency (MHz)

0

500

1000

1500

2000

2500

3000

3500

0

1

2

3

4

5

Frequency (MHz)