ASX420_17 Datasheet, PDF (4/14 Pages) Advanced Semiconductor Business Inc. – 250 ~ 3500 MHz MMIC Amplifier

ASX420
250 ~ 3500 MHz MMIC Amplifier
APPLICATION CIRCUIT
CDMA, GSM Rx
824 ~ 915 MHz
+5 V
Frequency (MHz)
824 ~ 849 869 ~ 894 890 ~ 915
Magnitude S21 (dB) 33.0
32.0
31.5
Magnitude S11 (dB) -15
-15
-15
Magnitude S22 (dB) -9
-8
-7
Output P1dB (dBm) 29.5
29.5
29.5
Output IP3¹⁾ (dBm) 46.5
47.0
47.0
Noise Figure (dB) 7.0
7.5
6.8
Device Voltage (V) +5
+5
+5
Current (mA)
370
370
370
1) OIP3 is measured with two tones at an output power of +12 dBm/tone separated
by 1 MHz.
Schematic
Vcc=5 V
D1=5.6V
Zener Diode
R1=3 
C8=1 F
C7=100pF
RF IN
C4=100 pF
L2=82 nH
1.5 mm ASX420
C1=100 pF
C6=1 F
C5=100pF
L1=82 nH
(Coil Inductor)
C2=100 pF _{RF OUT}
8 mm
C3=6 pF
Board Layout (FR4, 40x40 mm², 0.8T)
S-parameters & K-factor
50
0
40
-5
30
-10
20
-40^oc
25^oc
10
85^oc
0
600
700
800
900
1000
1100
1200
Frequency (MHz)
5
-15
-40^oc
25^oc
-20
85^oc
-25
600
700
800
900
1000
1100
1200
Frequency (MHz)
5
0
4
-5
3
4/14
-10
2
-40^oc
25^oc
-15
85^oc
1
-20
600
700
800
900
1000
1100
1200
Frequency (MHz)
0
0
500
1000
1500
2000
2500
3000
3500
Frequency (MHz)
ASB Inc.  [e-mail]  Tel: [phone]
February 2017