SST11LP12 datasheet(14/17 Pages) SST

14 / 17 page

Preliminary Specifications

4.9-5.8 GHz High-Linearity Power Amplifier

SST11LP12

S71278-01-000

1/06

FIGURE 17: DETECTOR CHARACTERISTICS AT ROOM TEMPERATURE OVER FREQUENCY WITH

2:1 OUTPUT VSWR ALL PHASES

FIGURE 18: TYPICAL APPLICATION FOR HIGH-POWER 802.11A APPLICATION

0.60

0.70

0.80

0.90

1.00

1.10

1.20

1.30

1.40

1.50

1.60

-1

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

Output Power (dBm)

Freq=4.92 GHz (M atche d)

Freq=5.18 GHz (M atche d)

Freq=5.32 GHz (M atche d)

Freq=5.805 GH z (Matched)

Freq=4.92 GHz (M in)

Freq=5.18 GHz (M in)

Freq=5.32 GHz (M in)

Freq=5.805 GH z (Min)

Freq=4.92 GHz (M ax)

Freq=5.18 GHz (M ax)

Freq=5.32 GHz (M ax )

Freq=5.805 GH z (Max)

VCC

100 pF

Ω RFin

VREF

10 μF

0.1 μF

100 pF*

0.1μF

0~40 mil

Ω RFOUT

0.5 pF/0402 Hi-Q, typically

Johanson S-series

80 mil/60 mil**

Det_ref

Det

0.1 μF*

10 pF

0.1 μF

*As close as possible to package

**For 8-10 mil FR4 dielectric board

Bias Circuit

1278 Schematic.0.2

Ω (100 ~ 200 mils)

0.5 pF

Test Conditions

VREG = 2.85V

VCC=3.3V

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