The Posedge WLAN Baseband Processor (PE-BB-4220) is a low-cost, low-power, high-performance, and a highly-integrated solution for 802.11a/b/g/n, designed to support high throughputs for next generation Wireless LAN applications. It is a complete solution with Software, Firmware and RTL, to enable wireless connectivity to laptops, phones, TVs.
PE-BB-4220 uses Multi-Input, Multi-Output (MIMO) technology to achieve high data rates and longer reach. It is implemented with highly efficient and effective algorithms like Maximum Likely Hood decoder, Low-Density Parity Decoder, and Space Time Block Coding techniques. The Baseband engine performs DC offset, IQ imbalances, Frequency offset Compensation, in addition to channel coding/decoding as per the standard.
PE-BB-4220 MAC performs all the layer-2 protocol functions using firmware running on the MAC-Micro-Engine. Very high levels of QoS are achieved with multiple queues in the MAC and it implements QMM and DCF protocols as per 802.11e. The wireless security is also implemented in the MAC engine with AES and TKIP hardware blocks. The firmware/hardware combo, achieves high throughput and configurable interrupt intervals as suited to different applications.
Compliant to IEEE – 802.11 a/b/g/n Specification and other 802.11 protocols like 802.11 e/h/i/j/k
WPA Security with WEP 64/128 WEP using TKIP,WPA2 Security with AES-CCMP
LDPC, ML, and PAPD support for high rate over reach.
Compatible with PE-RF-2220 and PE-RF-7220 RF chips with single mode and dual mode support respectively.
Compete Software support with Upper MAC and Drivers that include Auto-Channel Selection, Rate adaptation
Independent 4-Channel DMA and with Configurable TX / RX Buffer depths.
Frequency Bandwidth – 20 MHz, 40 MHz. OFDM with BPSK, QPSK, 16-QAM, 64-QAM CCK/DSSS Support.
Data rate:IEEE 802.11 n 6.5 - 300 Mbps IEEE 802.11 a/g 6 - 54 Mbps IEEE 802.11 b 1 - 11 Mbps
Supports two stream MIMO,Enables data rates up to 300 Mbps
Enhanced Bluetooth co-existence support with 3-wire and 4-wire intf.
Fully Synthesizable RTL
Self-checking Testbench and Test cases.
ASIC Synthesis Scripts
Lower MAC Firmware
Upper MAC, Device Driver and Adaptation Protocol software