ASX423 Datasheet, PDF (9/11 Pages) Advanced Semiconductor Business Inc. – 100-4500 MHz MMIC Amplifier

ASX423
100-4500 MHz MMIC Amplifier
APPLICATION CIRCUIT
WCDMA Tx
2110 ~ 2170 MHz
+5 V
Schematic
Vcc=5 V
Frequency (MHz)
2110~2170
Magnitude S21 (dB)
23
Magnitude S11 (dB)
-10
Magnitude S22 (dB)
-15
Output P1dB (dBm)
29
Output IP3¹⁾ (dBm)
46
Noise Figure (dB)
2.7
Device Voltage (V)
5
Current (mA)
400
1) OIP3 is measured with two tones at an output power of +12 dBm/tone se-
parated by 1 MHz.
Board Layout (FR4, 40x40 mm², 0.8T)
C9=1 mF
C8=100pF
C5=1.2 pF
C4=3.3 pF
RF IN
L3=18 nH
ASX423
L1=18 nH
C1=100 pF
D1=5.6V
Zener Diode
C7=1 mF
C6=100 pF
L2=39 nH
(Coil Inductor)
C2=100 pF _{RF OUT}
2.5 mm
C3=1.5 pF
S-parameters & K-factor
30
0
25
-5
20
15
-10
10
-15
5
0
1900
2000
2100
2200
2300
2400
Frequency (MHz)
0
-20
1900
2000
2100
2200
2300
2400
Frequency (MHz)
5
9/11
-5
-10
-15
-20
-25
-30
1900
4
3
2
1
2000
2100
2200
2300
2400
Frequency (MHz)
0
0
500
1000 1500 2000 2500 3000 3500
Frequency (MHz)
ASB Inc. · [e-mail] · Tel: [phone]
September 2011