ASX521 Datasheet, PDF (7/12 Pages) Advanced Semiconductor Business Inc. – 250-3000 MHz MMIC Amplifier

ASX521
250-3000 MHz MMIC Amplifier
APPLICATION CIRCUIT
WCDMA Rx
1920 ~ 1980 MHz
+5 V
Frequency (MHz)
1920~1980
Magnitude S21 (dB)
19
Magnitude S11 (dB)
-16
Magnitude S22 (dB)
-9
Output P1dB (dBm)
Output IP3¹⁾ (dBm)
31.5
48
Noise Figure (dB)
5.6
Device Voltage (V)
5
Current (mA)
870
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
C8=1 mF
C7=100pF
L2=33 nH C4=2.2 pF
(Coil Inductor)
RF IN
R1=5.1 W
1.5 mm ^ASX521
C1=2 pF
C2=1.5 pF
C6=1 mF
C5=100pF
L1=18 nH
(Coil Inductor)
C3=1.2 pF _{RF OUT}
5 mm
L3=2.2 nH
Board Layout (FR4, 40x40 mm², 0.8T)
S-parameters
30
25
20
15
10
5
0
1700
1800
0
1900
2000
Frequency (MHz)
-40^oc
25^oc
85^oc
2100
2200
-5
-10
-15
-40^oc
25^oc
-20
85^oc
-25
1700
1800
1900
2000
2100
2200
Frequency (MHz)
0
-5
-10
-15
-20
-25
-30
1700
5
-40^oc
25^oc
85^oc
1800
1900
2000
2100
2200
Frequency (MHz)
4
3
2
1
0
0
500
1000 1500 2000 2500 3000 3500
Frequency (MHz)
7/12
ASB Inc. · [e-mail] · Tel: [phone]
February 2010