ASX521 Datasheet, PDF (5/12 Pages) Advanced Semiconductor Business Inc. – 250-3000 MHz MMIC Amplifier

ASX521
250-3000 MHz MMIC Amplifier
APPLICATION CIRCUIT
GSM Rx
890 ~ 915 MHz
+5 V
Frequency (MHz)
890~915
Magnitude S21 (dB)
28
Magnitude S11 (dB)
-15
Magnitude S22 (dB)
-11
Output P1dB (dBm)
32
Output IP3¹⁾ (dBm)
48
Noise Figure (dB)
11
Device Voltage (V)
5
Current (mA)
890
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
RF IN
R2=6.8 W
C4=12 pF
L2=56 nH
2 mm ^ASX521
C1=2.2 pF
7 mm ^{R1=15 W}
C6=1 mF
C5=100pF
L1=56 nH
(Coil Inductor)
RF OUT
7 mm
C2=100 pF
C3=7 pF
Board Layout (FR4, 40x40 mm², 0.8T)
S-parameters
35
0
30
-5
25
-10
20
-15
15
10
600
700
800
900
1000
1100
1200
Frequency (MHz)
5
-20
600
700
800
900
1000
1100
1200
Frequency (MHz)
5
0
4
-5
3
-10
2
-15
1
-20
600
700
800
900
1000
1100
1200
Frequency (MHz)
0
0
500
1000 1500 2000 2500 3000 3500
Frequency (MHz)
5/12
ASB Inc. · [e-mail] · Tel: [phone]
February 2010