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

Part # AST20S
Description  High Gain, Low Noise Amplifier
PDF  33 Pages
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Manufacturer  ASB [Advanced Semiconductor Business Inc.]
Direct Link  http://www.asb.co.kr
Logo ASB - Advanced Semiconductor Business Inc.

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

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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 +0 dBm/tone separated by 1MHz.
Parameter
Symbol
Unit
Frequency (MHz)
470
860
Power Gain
Gp
dB
18.4
18.2
Noise Figure
NF
dB
1.2
1.2
Input Return Loss
RLin
dB
-15
-18
Output Return Loss
RLout
dB
-12
-15
1 dB Gain Compression
Output Power
Po(1dB)
dBm
11
14
3
rd Intercept Point
Output Power
1)
OIP3
dBm
24
27
Circuit Current
Icc
mA
28
28
Schematic
S-parameters & K-factor
APPLICATION CIRCUIT
CMMB
470 ~ 860 MHz
+4.5 V
Board Layout (FR4, 24x16 mm
2, 0.8T)
Bottom
Top
RF OUT
AST20S
RF IN
R4=750
W
C6=1 uF
VDD
R2=5.1 k
W
L2=18 nH
R1=51
W
C4=100 pF R3=510 W
L3=18 nH
C1=0.1 uF
C2=0.1 uF
C5=0.1 uF
L1=6.8 nH
C3=3 pF
0
200
400
600
800
1000
-40
-30
-20
-10
0
10
20
30
S12
S22
S11
S21
Frequency [MHz]
0
500
1000
1500
2000
2500
3000
3500
0
1
2
3
4
5
Frequency (MHz)
freq (470.0MHz to 860.0MHz)



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