SST12LP20 Datasheet, PDF (1/13 Pages) Microchip Technology – 2.4 GHz High-Efficiency, High-Gain Power Amplifier

2.4 GHz High-Efficiency, High-Gain Power Amplifier
SST12LP20
Data Sheet
SST12LP20 is a RF-matched power amplifier module based on the highly-reliable
InGaP/GaAs HBT technology. This amplifier includes DC blocks and provides both
input and output match to 50Ω. Operating over the 2.4–2.5 GHz frequency band, the
amplifier typically provides 30 dB gain with 28% power-added efficiency at 21 dBm.
SST12LP20 has excellent linearity with typically 18 dBm at 3% EVM for 54 Mbps
802.11g modulation, while meeting 802.11g spectrum mask at 21 dBm. It requires
only two external bias components, and features easy board-level usage, along with
high-speed power-up/down control through a single combined reference voltage pin.
SST12LP20 is offered in an 8-contact USON package.
Features
• High gain:
– Typically 30 dB gain across 2.4–2.5 GHz over tempera-
ture 0°C to +85°C and 29 dB gain from -40°C to 0°C
• High linear output power:
– >24 dBm P1dB
- Single-tone measurement. Please refer to “Absolute
Maximum Stress Ratings” on page 5
– Meets 802.11g OFDM ACPR requirement up to 21 dBm
– ~3% added EVM up to 18 dBm for 54 Mbps 802.11g
signal 802.11n HT20 ACPR requirement up to 18 dBm
– Meets 802.11b ACPR requirement up to 21 dBm
• High power-added efficiency/Low operating cur-
rent for 802.11b/g/n applications
– ~28%/138 mA @ P_OUT = 21 dBm for 802.11b/g
• Single-pin low I_REF power-up/down control
– I_REF <2 mA
• Low idle current
– ~78 mA I_CQ
• High-speed power-up/down
– Turn on/off time (10%- 90%) <100 ns
– Typical power-up/down delay with driver delay included
<200 ns
• Low shut-down current (~2 µA)
• Small variation over temperature
– ~1 dB gain/power variation between 0°C to +85°C
• Excellent on-chip power detection
– >15 dB dynamic range, dB-wise Linear Temperature
stable and load insensitive
• Input port matched to 50Ω internally
• Both input and output ports are DC decoupled.
• Packages available
– 8-contact USON – 2mm x 2mm x 0.55mm
• All non-Pb (lead-free) devices are RoHS compliant
Applications
• WLAN (IEEE 802.11b/g/n)
• Home RF
• Cordless phones
• 2.4 GHz ISM wireless equipment
©2013 Silicon Storage Technology, Inc.
www.microchip.com
DS70005049C
05/13