AST54S_17 Datasheet, PDF (13/26 Pages) Advanced Semiconductor Business Inc. – High Gain, Low Noise Amplifier

APPLICATION CIRCUIT
SiriusXM
2338 MHz
+5 V
Schematic
AST54S
High Gain, Low Noise Amplifier
Parameter
Symbol Test Conditions MIN.
Power Gain
Gp
F = 2338 MHz
Noise Figure
NF
F = 2338 MHz
Input Return Loss
RLin
F = 2338 MHz
Output Return Loss
RLout
F = 2338 MHz
1 dB Gain Compression
Output Power
3^rd Intercept Point
Output Power¹⁾
Circuit Current
Po(1dB)
OIP3
Id
F = 2338 MHz
F = 2338 MHz
F = 2338 MHz
Non-RF
1) OIP3 is measured with two tones at an output power of +0 dBm/tone separated by 1MHz.
TYP. MAX. Unit
12.2
dB
0.55
dB
-10
dB
-17
dB
17
dBm
32
dBm
35
mA
V_supply=+5 V
Board Layout (FR4, 23x13 mm², 0.8T)
Top
RF IN
C3=1 nF
R1=820 
R3=51 
C4=1 F
C1=22 pF
R2=5.1 k
L1=8.2 nH
*P1
AST54S
*P1
L2=15 nH
C2=22 pF
RF OUT
Bottom
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: 1.5 mm, Width: 0.3 mm
2) Gain and S11 are in trade-off and varied with the length of P1
S-parameters & K-factor
25
20
15
10
5
13/26
0
1000
5
0
-5
-10
-15
-20
-25
-30
1000
1500
2000
2500
Frequency (MHz)
1500
2000
2500
Frequency (MHz)
3000
3500
5
0
-5
-10
-15
-20
-25
-30
1000
5
1500
2000
2500
Frequency (MHz)
3000
3500
4
3
2
1
3000
3500
0
0
500
ASB Inc.  [e-mail]  Tel: [phone]
1000 1500 2000 2500
Frequency (MHz)
3000 3500
April 2017