AST20S datasheet(13/41 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.

Parameter

Symbol

Test Conditions

MIN.

TYP.

MAX.

Unit

Power Gain

F = 2.45 GHz

Noise Figure

F = 2.45 GHz

1.0

Input Return Loss

RLin

F = 2.45 GHz

-15

Output Return Loss

RLout

F = 2.45 GHz

-13

1 dB Gain Compression

Output Power

Po(1dB)

F = 2.45 GHz

18.5

dBm

3rd Intercept Point

Output Power1)

OIP3

F = 2.45 GHz

dBm

Circuit Current

F = 2.45 GHz

Non-RF

Schematic

S-parameters & Noise Figure

APPLICATION CIRCUIT

WLAN

2450 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: 1.0 mm, Width: 0.3 mm

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

500

1000

1500

2000

2500

3000

3500

Frequency (MHz)

2100

2200

2300

2400

2500

2600

2700

2800

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 (2.100GHz to 2.800GHz)

2100

2200

2300

2400

2500

2600

2700

2800

-30

-20

-10

S12

S22

S11

S21

Frequency [MHz]

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