2.4 GHz High-Power and High-Gain Power Amplifier
SST12LP15A
Data Sheet
TYPICAL PERFORMANCE CHARACTERISTICS
T
EST
C
ONDITIONS
: V
CC
= 3.3V, T
A
=25°C, 1 M
BPS
802.11B CCK
SIGNAL
10
0
-10
Amplitude (dB)
-20
-30
-40
-50
-60
-70
-80
2.35
2.40
2.45
Frequency (GHz)
FIGURE 12: 802.11b Spectrum Mask at 25 dBm, DC current 350 mA
1291 F11.0
Freq = 2.412 GHz
Freq = 2.442 GHz
Freq = 2.484 GHz
2.50
2.55
0.1 µF
100pF
100pF
10 µF
Vcc
12nH/0805 Inductor
16
1
15
14
13
12
50Ω /85mil
50Ω RFin
2
11
50Ω /120mil
50Ω RFout
3
2.2nH*
4
5
6
7
8
Biascircuit
10
2.7pF
9
Suggested operation conditions:
1 V
CC
= 3.3V
2. Center slug to RF ground
3. VREG1=VREG2=2.90V with
R1=169Ω and R2=140Ω
* Could be removed if -7 dB
return loss is acceptable
1291 Schematic.0.6
0.1 µF
R3 100
Ω
100pF
R1 169Ω
100pF
R2 140Ω
10pF
10pF
VREG 1
VREG 2
Det_ref
Det
FIGURE 13: Typical Schematic for High-Power, High-Efficiency 802.11b/g Applications
©2006 SST Communications Corp.
S71291-02-000
7/06
9
SST [ SILICON STORAGE TECHNOLOGY, INC ]
