ASX423
100-4500 MHz MMIC Amplifier
Frequency (MHz)
824~849
34
-14
-14
30
45
2.4
5
400
869~894
32.5
-13
-15
30
45
2.4
APPLICATION CIRCUIT
CDMA
824 ~ 894 MHz
+5 V
Magnitude S21 (dB)
Magnitude S11 (dB)
Magnitude S22 (dB)
Output P1dB (dBm)
Output IP3
1)
(dBm)
Noise Figure (dB)
Device Voltage (V)
Current (mA)
1) OIP3 is measured with two tones at an output power of +11 dBm/tone sepa-
rated by 1 MHz.
Schematic
Vcc=5 V
Board Layout (FR4, 40x40 mm , 0.8T)
2
D1=5.6V
Zener Diode
C7=1
mF
C9=1
mF
C5=6 pF
C8=100pF C4=18 pF
RF IN
L3=33 nH
C1=100 pF
L1=33 nH
ASX423
C6=100 pF
L4=4.7 nH
L2=82 nH
(Coil Inductor)
C2=100 pF RF OUT
8 mm
C3=4.7 pF
S-parameters & K-factor
50
0
40
-5
Gain (dB)
30
-10
20
S11 (dB)
700
800
900
1000
1100
1200
-15
10
-20
0
600
-25
600
700
800
900
1000
1100
1200
Frequency (MHz)
0
5
Frequency (MHz)
-5
4
-10
Stability Factor
700
800
900
1000
1100
1200
3
S22 (dB)
-15
2
-20
1
-25
600
0
0
500
1000
1500
2000
2500
3000
3500
Frequency (MHz)
Frequency (MHz)
5/11
ASB Inc.
·
sales@asb.co.kr
·
Tel: +82-42-528-7223
September 2011
ASB [ ADVANCED SEMICONDUCTOR BUSINESS INC. ]
