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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

SAW

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

Top

Parameter

Symbol

Test Conditions

MIN.

TYP.

MAX.

Unit

Power Gain

F = 1.575 GHz

26.5

dB

Noise Figure

NF

F = 1.575 GHz

1.1

dB

Input Return Loss

F = 1.575 GHz

-18

dB

Output Return Loss

F = 1.575 GHz

-18

dB

Reverse Isolation

ISO

F = 1.575 GHz

-40

dB

1 dB Gain Compression

Output Power

F = 1.575 GHz

11

dBm

3

Output Power

1)

OIP3

F = 1.575 GHz

14.5

dBm

Current

F = 1.575 GHz,

Non-RF

8.5

mA

Schematic

S-parameters & Noise Figure & K-factor

APPLICATION CIRCUIT

( With SAW Filter )

GPS

1575 MHz

+3 V

Board Layout (FR4, 15x11.5 mm

1400

1450

1500

1550

1600

1650

1700

1750

1800

-80

-60

-40

-20

0

20

40

60

S12

S22

S11

S21

Frequency [MHz]

1400

1450

1500

1550

1600

1650

1700

1750

1800

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

1.4

1.5

Frequency (MHz)

S11

S22

freq (1.275GHz to 1.875GHz)

Bottom

indep(Source_stabcir[m1,::]) (0.000 to 51.000)

indep(Load_stabcir[m1,::]) (0.000 to 51.000)

0

500

1000

1500

2000

2500

3000

3500

0

1

2

3

4

5

Frequency (MHz)

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

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