AST20S datasheet(31/33 Pages) ASB

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ASB Inc.

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

August 2012

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

Unit

Frequency (MHz)

2300

2500

2700

Power Gain

15.5

15.3

14.7

Noise Figure

1.05

1.0

Input Return Loss

RLin

-9

-12

-10

Output Return Loss

RLout

-20

-17

-13

1 dB Gain Compression

Output Power

Po(1dB)

dBm

17.5

rd Intercept Point

Output Power

OIP3

dBm

33.5

Circuit Current

Icc

Schematic

S-parameters & K-factor

APPLICATION CIRCUIT

2300 ~ 2700 MHz

+5 V

Board Layout (FR4, 24x16 mm

2, 0.8T)

Bottom

Top

C1=15 pF

C3=10 pF

RF OUT

AST20S

C5=10 nF

RF IN

R1=750

C6=1 uF

VDD

R2=5.1 k

L1=15 nH

(Coil Inductor)

R4=51

C2=1.2 pF

C4=1 nF

R3=1.1 k

L2=15 nH

(Coil Inductor)

C6=1

2000

2200

2400

2600

2800

3000

-30

-20

-10

S12

S22

S11

S21

Frequency [MHz]

500

1000

1500

2000

2500

3000

3500

Frequency (MHz)

freq (2.300GHz to 2.700GHz)

S11

S22

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