AST54S_17 Datasheet, PDF (20/26 Pages) Advanced Semiconductor Business Inc. – High Gain, Low Noise Amplifier

APPLICATION CIRCUIT
CMMB (50 )
470 ~ 860 MHz
+5 V
AST54S
High Gain, Low Noise Amplifier
Parameter
Power Gain
Noise Figure
Input Return Loss
Output Return Loss
1 dB Gain Compression
Output Power
3^rd Intercept Point
Output Power¹⁾
Circuit Current
Symbol Unit
Gp
NF
RLin
RLout
Po(1dB)
dB
dB
dB
dB
dBm
Frequency (MHz)
470
860
20
18
0.9
0.9
-17
-12
-15
-18
17
16
OIP3 dBm 29
28
Id
mA 40
40
1) OIP3 is measured with two tones at an output power of +0 dBm/tone separated by 1MHz.
Schematic
VDD
RF IN
C4=1 nF
R1=820  R3=43 
C5=1 uF
C1=1 nF L3=2.7 nH
C3=2.2 pF
R2=5.1 k
L1=39 nH
AST54S
L2=330 nH
C2=1 nF RF OUT
C6=1 nF
R3=680 
Board Layout (FR4, 28x16 mm², 0.8T)
Top
Bottom
S-parameters & K-factor
25
20
15
10
5
20/26
0
0
5
0
-5
-10
-15
-20
-25
-30
0
300
600
900
Frequency (MHz)
300
600
900
Frequency (MHz)
1200
1500
5
0
-5
-10
-15
-20
-25
-30
0
5
300
600
900
1200
1500
Frequency (MHz)
4
3
2
1
1200
1500
0
0
300
600
900
1200 1500 1800 2100
Frequency (MHz)
ASB Inc.  [e-mail]  Tel: [phone]
April 2017