AT76C517 Datasheet, PDF (1/3 Pages) ATMEL Corporation – 802.11a/b/g Baseband Controller

Features
• On-chip OFDM Baseband Supports All the Transmission Modes of the IEEE 802.11a
Specification and the OFDM Modes of the IEEE 802.11g Specification (6, 9, 12, 18, 24,
36, 48, and 54 Mbps)
• On-chip DSSS/CCK Baseband Supports All Transmission Modes of the IEEE 802.11b
Specification (1, 2, 5.5, 11 Mbps)
• Single 20 MHz or 40 MHz Input Clock Generates the Internal System Clock and the 44
MHz Clock for the DSSS/CCK Baseband
• Low Pin Count Flexible MAC Layer Interface
• Flexible RF Interface Allows Glueless Communication with Various Dual Mode
(802.11a/g) RF Devices
• On-chip Automatic Gain Control
• On-chip DC Offset Remove Mechanism
• Analog and Digital Gain Vector for the RF Transceiver
• SPI Interface for Configuration/Control
• 8 GPIO to Control External 11a/g PAs, On/Off of RF Devices and Antenna Diversity
• Digital or Analog Interface to the RF Devices
• Up to 4 Auxiliary Analog to Digital Converters (Depending On the Package)
• Up to 2 Auxiliary Purpose Digital to Analog Converters
• 1.8 Volt Core Voltage Supply
• 3.3 Volt I/O Voltage Supply
• 100-ball TFBGA Package
802.11a/b/g BaseBand Controller
PLL
Clock
Reset
Test
Debug
802.11a/b/g
Baseband
Controller
AT76C517
Summary
MAC I/F
BaseBand
11a/b/g
DAC ^I
DAC Q
ADC I
ADC _Q
Register File
DAC Tx VGA
DAC _{Rx VGA}
GPIO
Analog
Front End
ADC Aux0
ADC _Aux1
NOTE: This is a summary document.
The complete document is available
under NDA. For more information,
please contact your local Atmel sales
office.
5642AS–WLAN–07/06