Data Sheet

2.4 GHz High-Power and High-Gain Power Amplifier

SST12LP15A

9

©2006 SST Communications Corp.

S71291-02-000

7/06

TYPICAL PERFORMANCE CHARACTERISTICS

FIGURE 12: 802.11b Spectrum Mask at 25 dBm, DC current 350 mA

FIGURE 13: Typical Schematic for High-Power, High-Efficiency 802.11b/g Applications

-80

-70

-60

-50

-40

-30

-20

-10

0

10

Freq = 2.412 GHz

Freq = 2.442 GHz

Freq = 2.484 GHz

Frequency (GHz)

2.35

2.40

2.45

2.50

2.55

2

5

6

7

8

9

11

16

15

Biascircuit

1

50

Ω /85mil

50

Ω RFout

100pF

100pF

2.7pF

50

Ω/120mil

50

Ω RFin

VREG 1

VREG 2

14

13

10 µF

0.1 µF

Vcc

4

12

10

pF

100

12nH/0805 Inductor

R2 140

Ω

R1 169

Ω

3

0.1 µF

Det_ref

Det

10pF

10pF

1291 Schematic.0.6

Suggested operation conditions:

2. Center slug to RF ground

3. VREG1=VREG2=2.90V with

R1=169

Ω and R2=140Ω

* Could be removed if -7 dB

return loss is acceptable

R3 100

Ω

2.2nH*

pF

100