AST20S datasheet(3/41 Pages) ASB

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ASB Inc.

 sales@asb.co.kr  Tel: +82-42-528-7225

February 2017

AST20S

High Gain, Low Noise Amplifier

1) OIP3 is measured with two tones at an output power of +4 dBm/tone separated by 1MHz.

Schematic

S-parameters & K-factor

APPLICATION CIRCUIT

LTE

698 ~ 787 MHz

+5 V

Board Layout (FR4, 23x13 mm2, 0.8T)

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: 2.0 mm, Width: 0.3 mm

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

Bottom

Parameter

Symbol

Unit

Frequency (MHz)

698

787

Power Gain

Noise Figure

0.55

0.50

Input Return Loss

RLin

-8

-10

Output Return Loss

RLout

-15

1 dB Gain Compression

Output Power

Po(1dB)

dBm

15.5

3rd Intercept Point

Output Power1)

OIP3

dBm

Circuit Current

Top

400

500

600

700

800

900

1000

Frequency (MHz)

400

500

600

700

800

900

1000

-20

-15

-10

-5

Frequency (MHz)

400

500

600

700

800

900

1000

-25

-20

-15

-10

-5

Frequency (MHz)

500

1000

1500

2000

2500

3000

3500

Frequency (MHz)

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