14/26

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

SiriusXM

High IP1dB

2338 MHz

+5 V

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

Top

Parameter

Symbol

Test Conditions

MIN.

TYP.

MAX.

Unit

Power Gain

F = 2338 MHz

8.3

dB

Noise Figure

NF

F = 2338 MHz

0.55

dB

Input Return Loss

F = 2338 MHz

-13

dB

Output Return Loss

F = 2338 MHz

-11

dB

1 dB Gain Compression

Output Power

F = 2338 MHz

20

dBm

OIP3

F = 2338 MHz

34

dBm

Circuit Current

F = 2338 MHz

Non-RF

32

mA

1000

1500

2000

2500

3000

3500

0

5

10

15

20

Frequency (MHz)

1000

1500

2000

2500

3000

3500

-20

-15

-10

-5

0

Frequency (MHz)

1000

1500

2000

2500

3000

3500

-20

-15

-10

-5

0

Frequency (MHz)

0

500

1000

1500

2000

2500

3000

3500

0

1

2

3

4

5

Frequency [MHz]

RF IN

RF OUT

C1=100 pF

L2=8.2 nH

AST54S

C4=12 pF

R1=560



C6=1

F

R2=5.1 k



C2=100 pF

L1=10 nH

NC

*P1

R3=680



C5=0.5 pF

C3=0.5 pF