ATR7032-PVQW Microchip

Features Frequency Range 2.4 GHz to 2.5 GHz Supply Voltage 2.7V to 3.6V 32 dB Power Gain 23 dBm Linear Output Power for IEEE 802.11b Mode Operation EVM < 2.0% at 19 dBm Output Power for IEEE 802.11g Mode Operation On-chip Power Detector with 20 dB Dynamic Range Power-down Mode and Biasing Control Input and Interstage Matching Fully On-chip High Gain Low Profile Lead-free Plastic Package QFN16 (3 mm 3 mm 0.9 mm) Power Amplifier Applications IEEE 802.11b DSSS WLAN for 802.11b/g IEEE 802.11g OFDM WLAN WLAN Systems Bluetooth 2.0 Enhanced Data Rate PC Cards, PCMCIA, Access Points 2.4 GHz ISM Band Application ATR7032 1. Description This power amplifier (PA) is designed for high-performance 802.11b and 802.11g multi-mode applications such as Mini PCI and PCMCIA for portable devices and access points. The low profile plastic package with internal input matching to 50 and on-chip interstage matching minimizes the PCB board-space and allows simplified integration with very few passive components. The on-chip power detector provides a voltage linear to the output power, while the standby/bias control logic provides power-saving and shutdown options. The PA is realized as a three stage PA with internal interstage matching and an open-collector output structure. The power amplifier is designed using Atmel s Silicon-Germanium (SiGe2) process and provides excellent linearity and noise performance, high gain, and good power-added efficiency. 4846DWLAN10/07Figure 1-1. Block Diagram 12 11 10 9 13 V PA1 ATR7032 14 8 GND RF RF OUT 15 7 50 input Interstage Interstage RF OUT RF IN matching matching matching 6 RF OUT 16 IC 5 RF OUT Paddle GND RF Standby/ Voltage Bias detector circuitry 1 2 3 4 2 ATR7032 4846DWLAN10/07 VCTRL IC VCC V PA2 NC GND VCC NC VDET