AST54S_17 Datasheet, PDF (14/26 Pages) Advanced Semiconductor Business Inc. – High Gain, Low Noise Amplifier

AST54S
High Gain, Low Noise Amplifier
APPLICATION CIRCUIT
SiriusXM
High IP1dB
2338 MHz
+5 V
Schematic
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
8.3
dB
0.55
dB
-13
dB
-11
dB
20
dBm
34
dBm
32
mA
Vsupply=+5 V
Board Layout (FR4, 23x13 mm², 0.8T)
Top
RF IN
C4=12 pF
R1=560 
RD=22 
C6=1 F
C1=100 pF
R2=5.1 k
L1=10 nH
*P1
C3=0.5 pF
NC
AST54S
R3=680 
C5=0.5 pF
L2=8.2 nH
C2=100 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: 2.0 mm, Width: 0.3 mm
2) Gain and S11 are in trade-off and varied with the length of P1
S-parameters & K-factor
20
0
15
-5
10
-10
5
-15
14/26
0
1000
0
1500
2000
2500
Frequency (MHz)
3000
3500
-20
1000
5
1500
2000
2500
Frequency (MHz)
3000
3500
-5
-10
-15
-20
1000
1500
2000
2500
Frequency (MHz)
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