AST20S datasheet(29/41 Pages) ASB

29 / 41 page

29/41

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 -2 dBm/tone separated by 1MHz.

Schematic

S-parameters & K-factor

APPLICATION CIRCUIT

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: 1.8 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)

1525

1559

Power Gain

14.5

14.0

Noise Figure

0.6

Input Return Loss

RLin

-9

Output Return Loss

RLout

-14

Gain

Compression

Output Power

Po(1dB)

dBm

16.5

3rd Intercept Point

Output Power1)

OIP3

dBm

23.5

Circuit Current

Top

1200

1300

1400

1500

1600

1700

1800

Frequency (MHz)

1200

1300

1400

1500

1600

1700

1800

-20

-15

-10

-5

Frequency (MHz)

1200

1300

1400

1500

1600

1700

1800

-20

-15

-10

-5

Frequency (MHz)

500

1000

1500

2000

2500

3000

3500

Frequency (MHz)

Satellite Phone

1525 ~ 1559 MHz

+5 V, 15 mA

AST20S Datasheet(PDF) 29 Page - Advanced Semiconductor Business Inc.

AST20S Datasheet(HTML) 29 Page - Advanced Semiconductor Business Inc.

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

Datasheet Download

Link URL