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ASB Inc.

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

September 2012

ASL226

700-6000MHz MMIC LNA

C3=1 pF

RF OUT

ASL226

RF IN

L1=4.7 nH

L2=6.8 nH

VDD

C2=1

mF

C1=100 pF

1) OIP3 is measured with two tones at an output power of -10 dBm/tone separated by 1MHz.

2) OIP3 is measured with two tones at an output power of -3 dBm/tone separated by 1MHz.

Schematic

S-parameters & Noise Figure & K-factor

APPLICATION CIRCUIT

GPS

1575 MHz

+3 V / +3.3 V / +5V

Board Layout (FR4, 14x11.3 mm

Parameter

Symbol

Test Conditions

TYP

Unit

Power Gain

F = 1.575 GHz

28

28.5

30.5

dB

Noise Figure

NF

F = 1.575 GHz

1.1

0.95

1.0

dB

Input Return Loss

F = 1.575 GHz

-16

-20

-11

dB

Output Return Loss

F = 1.575 GHz

-15

-20

-14

dB

Reverse Isolation

ISO

F = 1.575 GHz

-40

-40

-40

dB

1 dB Gain Compression

Output Power

F = 1.575 GHz

11

11

11

dBm

3

Output Power

OIP3

F = 1.575 GHz

15.5

1)

17

1)

20

2)

dBm

Device Voltage

Volt

F = 1.575 GHz

3

3.3

5

V

Current

F = 1.575 GHz,

Non-RF

8.5

9.5

18

mA

1400

1450

1500

1550

1600

1650

1700

1750

1800

0

5

10

15

20

25

30

35

40

Frequency (MHz)

-50

25

100

1400

1450

1500

1550

1600

1650

1700

1750

1800

-30

-25

-20

-15

-10

-5

0

Frequency (MHz)

-50

25

100

Bottom

Top

1400

1450

1500

1550

1600

1650

1700

1750

1800

-30

-25

-20

-15

-10

-5

0

Frequency (MHz)

-50

25

100

1400

1450

1500

1550

1600

1650

1700

1750

1800

-60

-50

-40

-30

-20

-10

0

Frequency (MHz)

-50

25

100

* Note: Gain and current can be reduced by controlling VDD to 2 V.

C2 must be placed as close as possible to the device.