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ASB Inc.

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

April 2017

AST54S

High Gain, Low Noise Amplifier

1) OIP3 is measured with two tones at an output power of +0 dBm/tone separated by 1MHz.

Schematic

S-parameters & K-factor

APPLICATION CIRCUIT

CATV (50

), FM

50 ~ 1000 MHz

+5 V

Bottom

Top

Parameter

Symbol

Unit

Frequency (MHz)

50

500

860

Power Gain

dB

20

19

18

Noise Figure

NF

dB

1.00

1.05

1.10

Input Return Loss

dB

-18

-12

-16

Output Return Loss

dB

-9

-12

-18

1 dB Gain Compression

Output Power

dBm

15

17

16

OIP3

dBm

26

29

28

Circuit Current

mA

40

40

40

0

200

400

600

800

1000

0

5

10

15

20

25

Frequency (MHz)

0

200

400

600

800

1000

-25

-20

-15

-10

-5

0

Frequency (MHz)

0

200

400

600

800

1000

-25

-20

-15

-10

-5

0

Frequency (MHz)

0

200

400

600

800

1000

0

1

2

3

4

5

Frequency (MHz)

C1=1 nF

C2=1 nF

RF OUT

AST54S

C4=1 nF

RF IN

L2=330 nH

R1=820



C5=1 uF

VDD

R2=5.1 k



L1=330 nH

R3=43



C3=2.2 pF

L3=4.7 nH

R3=510



C6=1 nF