AST163 Datasheet, PDF (8/8 Pages) Advanced Semiconductor Business Inc. – High Gain, Low Noise Amplifier

AST163
High Gain, Low Noise Amplifier
APPLICATION CIRCUIT
1950 MHz
+5 V / 25 mA
Schematic
Parameter
Symbol Unit
Frequency [MHz]
1950
Power Gain
G_p
dB
16
Noise Figure
NF
dB
0.65
Input Return Loss
RL_in
dB
-10
Output Return Loss
RL_out
dB
-14
1 dB Gain Compression
Output Power
P_o(1dB)
dBm
16
3^rd Intercept Point
Output Power¹⁾
OIP3 dBm
29
Circuit Current
I_cc
mA
25
1) OIP3 is measured with two tones at an output power of +0 dBm/tone separated by 1MHz.
Board Layout (FR4, 23x13 mm², 0.8T)
Top
VDD
RF IN
C4=10 nF
R1=750 W
C6=1 uF
R3=39 W
C1=100 pF
R2=6.2 kW
L1=5.6 nH
*P1
AST163
*P1
C5=10 nF
L2=3.3 nH
C2=2.2 pF
RF OUT
C3=0.5 pF
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: 1.2 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
0
1700
0
1800
1900
2000
2100
Frequency (MHz)
2200
2300
-20
1700
5
1800
1900
2000
2100
Frequency (MHz)
2200
2300
4
-5
3
-10
2
-15
1
-20
1700
1800
1900
2000
2100
Frequency (MHz)
2200
2300
0
0
500
1000
1500
2000
2500
3000
3500
Frequency (MHz)
8/8
ASB Inc. · [e-mail] · Tel: [phone]
July 2010