PROPRIETARY AND
CONFIDENTIAL
Microchip Technology Company
©2011 Silicon Storage Technology, Inc. DS75010B 09/11
Data Sheet
www.microchip.com
Features
• Input/output ports are matched to 50 internally
and DC decoupled.
• Packages available
– 20-contact UQFN – 3mm x 3mm x 0.55mm
• All non-Pb (lead-free) devices are RoHS compliant
Transmitter Chain:
• High gain:
– Typically 28 dB gain across 2.4–2.5 GHz over tempera-
ture -20°C to +85°C for Transmitter.
• High linear output power:
– Meets 802.11g OFDM ACPR requirement up to 21 dBm
– 3% added EVM up to 19 dBm for 54 Mbps 802.11g signal
– Meets 802.11b ACPR requirement up to 22 dBm
• High power-added efficiency/Low operating cur-
rent for 802.11b/g/n applications
– ~25% @ P
OUT
= 22 dBm for 802.11b/g
• Low I
REF
power-up/down control
–I
REF
<2 mA
• Low quiescent current
– ~55 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)
• Limited variation over temperature
– ~1 dB power variation between -20°C to +85°C
– ~2 dB gain variation between -20°C to +85°C
• Temperature and load insensitive on-chip power
detector
– >20 dB dynamic range, temperature-stable, on-chip
power detection
Receiver Chain:
• LNA ON:
– Typically 12 dB gain
– 3.1 dB noise figure
– >5dB P1dB
Bluetooth Path:
• Typically 2.5 dB loss
• Simultaneous BT/WLAN Rx mode:
– 8 dB gain
– 3.1 dB noise figure
Applications
• WLAN (IEEE 802.11b/g/n)
• Home RF
• Cordless phones
• 2.4 GHz ISM wireless equipment
• Zigbee®
• Bluetooth®
2.4 GHz High-Gain, High-Efficiency Front-end Module
SST12LF03
The SST12LF03 is a fully integrated Front-End Module (FEM) for WLAN 802.11b/g/
n and Bluetooth® systems. The SST12LF03 RF modules includes a PA, a LNA,
and an antenna switch, making it ideal for WLAN/BT embedded applications where
small size and high performance are required. Designed in compliance with IEEE
802.11 b/g/n applications and based on GaAs PHEMT/HBT technology, the
SST12LF03 operates within the frequency range of 2.4- 2.5 GHz with a very low
DC-current consumption. The Transmitter chain has excellent linearity, typically 3%
added EVM up to 19 dBm output power for 54 Mbps 802.11g operation, while meet-
ing 802.11b spectrum mask at 22 dBm. The receiver chain provides a low noise
amplifier and has options for simultaneous WLAN and Bluetooth operation.The
SST12LF03 is offered in a 20-contact UQFN package.
