AR9220 Datasheet PDF learn more.
Part number : AR9220
Functions : This is a kind of semiconductor, Single-Chip 2×2 MIMO MAC/BB/Radio.
Pin arrangement :
Package information :
Manufacturer : Atheros
The texts in the PDF file :
Data Sheet October 2009 AR9220 Single-Chip 2×2 MIMO MAC/BB/Radio with PCI Interface for 802.11n 2.4 and 5 GHz WLANs General
The Atheros AR9220 is a highly integrated single-chip solution for 2.4 and 5 GHz 802.11nready wireless local area networks (WLANs) that enables high-performance 2×2 MIMO configurations for wireless station applications demanding robust link quality and maximum throughput and range. The AR9220 integrates a multi-protocol MAC, baseband processor, analog-to-digital and digital-to-analog (ADC/ DAC) converters, 2×2 MIMO radio transceiver, and PCI interface in an all-CMOS device for low power and small form factor applications. The AR9220 implements half-duplex OFDM, CCK, and DSSS baseband processing, supporting up to 130 Mbps for 20 MHz and 300 Mbps for 40 MHz channel operations respectively, and IEEE 802.11a/b/g data rates. Additional features include signal detection, automatic gain control, frequency offset estimation, symbol timing, and channel estimation. The AR9220 MAC supports the 802.11 wireless MAC protocol, 802.11i security, receive and transmit filtering, error recovery, and quality of service (QoS). The AR9220 supports two simultaneous traffic streams using up to two integrated transmit chains and receive chains for high throughput and range performance. Transmit chains combine baseband in-phase (I) and quadrature (Q) signals, convert them to the desired frequency, and drive the RF signal to multiple antennas. The receiver converts an RF signal to baseband I and Q outputs. The frequency synthesizer supports one-MHz steps to match frequencies defined by IEEE 802.11a/b/g/n specifications. The AR9220 supports frame data transfer to and from the host using a PCI interface that provides interrupt generation and reporting, power save, and status reporting. Other external interfaces include serial EEPROM and GPIOs. The AR9220 interoperates with standard legacy 802.11a/b/g devices.
■ Dynamic frequency selection (DFS) is [ … ]
AR9220 PDF File