AST54S_17 Datasheet, PDF (19/26 Pages) Advanced Semiconductor Business Inc. – High Gain, Low Noise Amplifier

APPLICATION CIRCUIT
CATV (50 ), FM
50 ~ 1000 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
Gp
NF
RLin
RLout
Po(1dB)
OIP3
Id
Unit
dB
dB
dB
dB
dBm
dBm
mA
Frequency (MHz)
50
500
860
20
19
18
1.00 1.05 1.10
-18
-12
-16
-9
-12
-18
15
17
16
26
29
28
40
40
40
1) OIP3 is measured with two tones at an output power of +0 dBm/tone separated by 1MHz.
Schematic
Board Layout (FR4, 28x16 mm², 0.8T)
VDD
Top
RF IN
C4=1 nF
R1=820  R3=43 
C5=1 uF
C1=1 nF L3=4.7 nH
C3=2.2 pF
R2=5.1 k
L1=330 nH
AST54S
L2=330 nH
C2=1 nF RF OUT
C6=1 nF
R3=510 
Bottom
S-parameters & K-factor
25
0
20
-5
15
-10
10
-15
5
-20
0
0
200
400
600
800
1000
Frequency (MHz)
0
-25
0
200
5
-5
4
-10
3
-15
2
-20
1
19/26
-25
0
200
400
600
800
Frequency (MHz)
1000
0
0
200
ASB Inc.  [e-mail]  Tel: [phone]
400
600
800
Frequency (MHz)
400
600
800
Frequency (MHz)
1000
1000
April 2017