©2005 SST Communications Corp.

S71279-00-000

1/05

1

The SST logo and SuperFlash are registered Trademarks of Silicon Storage Technology, Inc.

These specifications are subject to change without notice.

Preliminary Specifications

FEATURES:

•

High Gain:

– Typically 30 dB gain across 2.4~2.5 GHz over

temperature 0°C to +80°C

•

High linear output power:

– >26.5 dBm P1dB

– Meets 802.11g OFDM ACPR requirement up to

23 dBm

– Added EVM ~4% up to 20 dBm for

54 Mbps 802.11g signal

– Meets 802.11b ACPR requirement up to 24 dBm

•

High power-added efficiency/Low operating

current for both 802.11g/b applications

•

•

Low idle current

•

High-speed power-up/down

– Turn on/off time (10%~90%) <100 ns

– Typical power-up/down delay with driver delay

included <200 ns

•

High temperature stability

– ~1 dB gain/power variation between 0°C to +80°C

– ~1 dB detector variation over 0°C to +80°C

•

Low shut-down current (< 0.1 µA)

•

On-chip power detection

•

25 dB dynamic range on-chip power detection

•

Simple input/output matching

•

Packages available

– 16-contact VQFN (3mm x 3mm)

– Non-Pb (lead-free) packages available

APPLICATIONS:

•

WLAN (IEEE 802.11g/b)

•Home RF

•

Cordless phones

•

2.4 GHz ISM wireless equipment

PRODUCT DESCRIPTION

The SST12LP14 is a high-performance power amplifier IC

based on the highly-reliable InGaP/GaAs HBT technology.

The SST12LP14 can be easily configured for high-power,

high-efficiency applications with superb power-added effi-

ciency while operating over the 2.4~2.5 GHz frequency

band. It typically provides 30 dB gain with 22% power-

The SST12LP14 has excellent linearity, typically <4%

added EVM up to 20 dBm output power which is essential

for 54 Mbps 802.11g operation while meeting 802.11g

spectrum mask at 23 dBm. The SST12LP14 also has

wide-range (>25 dB), temperature-stable (~1 dB over

80°C), single-ended/differential power detectors which

lower users’ cost on power control.

The power amplifier IC also features easy board-level

usage along with high-speed power-up/down control. Ultra-

SST12LP14 controllable by an on/off switching signal

directly from the baseband chip. These features coupled

with low operating current make the SST12LP14 ideal for

the final stage power amplification in battery-powered

802.11g/b WLAN transmitter applications.

The SST12LP14 is offered in 16-contact VQFN package.

See Figure 1 for pin assignments and Table 1 for pin

descriptions.

2.4 GHz Power Amplifier

SST12LP14

SST12LP142.4 GHz Power Amplifier