ASF255_17 Datasheet, PDF (6/8 Pages) Advanced Semiconductor Business Inc. – 5 ~ 3000 MHz MMIC Amplifier

APPLICATION CIRCUIT
SMATV
50 ~ 2150 MHz
+5 V
Schematic
Vs=5 V
ASF255
5 ~ 3000 MHz MMIC Amplifier
Frequency (MHz)
50
1000 2150
Magnitude S21 (dB)
18.2
18.4
18.1
Magnitude S11 (dB)
-8.0
-10.0 -14.0
Magnitude S22 (dB)
-8.0
-17.0 -7.0
Output P1dB (dBm)
21.5
21.5
20.0
Output IP3¹⁾ (dBm)
38.0
37.0
34.0
Noise Figure (dB)
2.5
2.6
3.0
Supply Voltage (V)
+5
+5
+5
Current (mA)
104
104
104
1) OIP3 is measured with two tones at an output power of +5 dBm/tone sepa-
rated by 1 MHz.
Board Layout (FR4, 40x40 mm², 0.8T)
RF IN
C1=1 F
C3=1 pF
R1=680 
ASF255
C6=1 F
C5=100 pF
L1=270 nH
C2=1 F
RF OUT
C4=1 nF
S-parameters & K-factor
25
20
15
10
5
0
0
0
-5
-10
-15
-20
-25
-30
0
500
1000
1500
2000
2500
Frequency (MHz)
500
1000
1500
2000
2500
Frequency (MHz)
0
-5
-10
-15
-20
0
500
1000
1500
2000
2500
Frequency (MHz)
6/8
ASB Inc.  [e-mail]  Tel: [phone]
February 2017