ASX423 Datasheet, PDF (8/11 Pages) Advanced Semiconductor Business Inc. – 100-4500 MHz MMIC Amplifier

ASX423
100-4500 MHz MMIC Amplifier
APPLICATION CIRCUIT
WCDMA Rx
1920 ~ 1980 MHz
+5 V
Schematic
Vcc=5 V
Frequency (MHz)
1920~1980
Magnitude S21 (dB)
22.5
Magnitude S11 (dB)
-11
Magnitude S22 (dB)
-18
Output P1dB (dBm)
Output IP3¹⁾ (dBm)
29.5
47
Noise Figure (dB)
2.6
Device Voltage (V)
5
Current (mA)
400
1) OIP3 is measured with two tones at an output power of +13 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
2 mm
C6=100 pF
L2=39 nH
(Coil Inductor)
C2=100 pFRF _OUT
C3=1.8 pF
S-parameters & K-factor
30
25
20
15
10
5
0
1700
1800
1900
2000
2100
2200
Frequency (MHz)
0
0
-5
-10
-15
-20
-25
1700
5
1800
1900
2000
2100
Frequency (MHz)
2200
-5
4
-10
3
-15
2
-20
1
8/11
-25
1700
1800
1900
2000
2100
2200
Frequency (MHz)
0
0
500
1000 1500 2000 2500 3000 3500
Frequency (MHz)
ASB Inc. · [e-mail] · Tel: [phone]
September 2011