AST54S_17 Datasheet, PDF (23/26 Pages) Advanced Semiconductor Business Inc. – High Gain, Low Noise Amplifier

APPLICATION CIRCUIT
Wide Band
5 ~ 1000 MHz
+3.2 V
Schematic
AST54S
High Gain, Low Noise Amplifier
Parameter
Symbol Unit
Frequency (MHz)
50
500
Power Gain
Noise Figure
Gp
dB
20.0
19.0
NF
dB
2.0
1.0
Input Return Loss
Output Return Loss
1 dB Gain Compression
Output Power
3^rd Intercept Point
Output Power¹⁾
Circuit Current
RLin
dB
-18
-12
RLout
dB
-10
-13
Po(1dB)
dBm 16
17
OIP3
dBm 28
31
Id
mA 42
42
1) OIP3 is measured with two tones at an output power of +0 dBm/tone separated by 1MHz.
1000
17.5
1.0
-17
-18
17
30
42
Vsupply=+5 V
Board Layout (FR4, 28x16 mm², 0.8T)
Top
C4=10 nF
R1=820 
R3=43 
C6=10 F
RF IN
C1=1 F L3=4.7 nH
C3=2.2 pF
R2=5.1 k
L1=8.2 H
AST54S
C7=1 F
L2=8.2 H
C2=1 F
RF OUT
C5=1 F
R4=510 
Bottom
S-parameters & K-factor
25
20
15
10
5
0
0
200
400
600
Frequency (MHz)
0
-5
-10
-15
-20
23/26
-25
0
200
400
600
Frequency (MHz)
0
-5
-10
-15
-20
800
1000
800
1000
-25
0
10
9
8
7
6
5
4
3
2
1
0
0
200
400
600
800
Frequency (MHz)
500
1000
1500
2000
2500
Frequency [MHz]
ASB Inc.  [e-mail]  Tel: [phone]
1000
3000
April 2017