ASL20G datasheet(3/7 Pages) ASB

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

October 2012

ASL20G

Medium Gain, Low Noise GPS Amplifier

1000

1250

1500

1750

2000

Frequency (MHz)

1000

1250

1500

1750

2000

-20

-15

-10

-5

Frequency (MHz)

1000

1250

1500

1750

2000

-25

-20

-15

-10

-5

Frequency (MHz)

500

1000

1500

2000

2500

3000

Frequency [MHz]

RF IN

RF OUT

L1=6.8 nH

ASL20G

VCTL

Hi: ON

Low: OFF (Power Save)

L2=9.1 nH

C1=0.5 pF

C2=0.1 mF

Vsupply

*P1

R1=390 W

Frequency (MHz)

1575

Magnitude S21 (dB)

16.5

Magnitude S11 (dB)

-6

Magnitude S22 (dB)

-14

Noise Figure (dB)

1.0

Input IP3 (dBm)

-21

Output P1dB( dBm)

-10

Supply Current (mA)

2.0

Supply Voltage (V)

1.8

Control Current (mA)

300

Control Voltage VCTL (V)

1.8

1) IIP3 is measured with two tones at an input power of -40 dBm/tone

separated by 1MHz.

APPLICATION CIRCUIT

GPS

1575 MHz

+1.8 V / 2mA

Schematic

S-parameters & K-factor

Note: 1) the length of the strip line P1 is given as below at

the PCB with Er = 4.5 and T = 0.8 mm.

*P1 Length: 1 mm, Width: 0.3 mm

2) Gain and S11 are in trade-off and varied with the length of P1

Board Layout (FR4, 20x20 mm

2, 0.8T)

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