ASX521
250-3000 MHz MMIC Amplifier
Frequency (MHz)
2300~2400
18
-17
-11
31
46.5
6.5
5
870
APPLICATION CIRCUIT
WiBro
2300 ~ 2400 MHz
+5 V
Magnitude S21 (dB)
Magnitude S11 (dB)
Magnitude S22 (dB)
Output P1dB (dBm)
Output IP3 (dBm)
Noise Figure (dB)
Device Voltage (V)
Current (mA)
1)
1) OIP3 is measured with two tones at an output power of +15
dBm/tone separated by 1 MHz.
Schematic
Vcc=5 V
D1=5.6V
Zener Diode
C6=1
mF
C8=1
mF
C7=100pF
L2=27 nH C4=1.5 pF
(Coil Inductor)
RF IN
R1=5
W
C1=1.5 pF
C3=1.8 pF
ASX521
Board Layout (FR4, 40x40 mm , 0.8T)
2
*C4 shall be placed as close as
possible to the pin.
C5=100pF
L1=27 nH
(Coil Inductor)
C2=56 pF RF OUT
S-parameters & K-factor
25
0
20
-5
15
-10
Gain (dB)
10
S11 (dB)
2000
2200
2400
2600
2800
3000
-15
5
-20
0
1800
-25
1800
2000
2200
2400
2600
2800
3000
Frequency (MHz)
10
5
Frequency (MHz)
5
4
0
Stability Factor
2000
2200
2400
2600
2800
3000
3
S22 (dB)
-5
2
-10
1
-15
1800
0
0
500
1000
1500
2000
2500
3000
3500
Frequency (MHz)
Frequency (MHz)
10/12
ASB Inc.
·
sales@asb.co.kr
·
Tel: +82-42-528-7223
February 2010
ASB [ ADVANCED SEMICONDUCTOR BUSINESS INC. ]
