P R O D U C T B R I E F Dual-Band Modem IC (PHY) for WLAN System Solutions The PMB 8787 provides the complete modem functionality for a dual-band wireless LAN chipset. It contains the signal processing functionality for both the DSSS/CCK and the OFDM modulation/ demodulation needed for an 802.11a/b/g compliant system. The PMB 8787 is designed to form an Infineon WLAN chipset in combination with the PMB 8680 dual-band RF Transceiver, the PMB 8825 dual-band Power Amplifier and the PMB 8789 MAC IC. The device is fabricated in an advanced 0.13 µm CMOS-technology and will be available in a LFBGA-81 package. WirelessLAN Applications Features ■ Advanced low power CMOS technology ■ High data-rate wireless LAN ■ Supply voltage 3.3 V for MAC/RF interface and 1.5 V ■ PC card wireless LAN adapters for core and analog supply ■ (Mini) PCI wireless LAN cards ■ Full support of 802.11a (54 Mbit@5 GHz) OFDM ■ CardBus wireless LAN adapters ■ Full support of 802.11g (54 [email protected] GHz) OFDM ■ Compact flash wireless LAN cards ■ Market proven 802.11b CCK/DSSS ■ USB wireless LAN adapters signal processing ■ Wireless LAN modules, access points, bridge ■ Data flow/low power architecture ■ Radar/CW Detection (802.11h) ■ Adaptive date rate selection due to products, and point-to-multipoint systems SNR measurement ■ Channel selection due to silence measurement ■ Proven high performance mixed signal blocks (ADC/DAC, PLL) ■ Low power A/D Converter P M B 8 7 8 7 Dual-Band Modem IC (PHY) N e v e r s t o p t h i n k i n g . P R O D U C T B R I E F Block Diagram OFDM - Module MDI-RX/ TX Data Bridge OFDM PHY Int./Dec. I/Q-DAC I/Q-ADC AGC RSSI-ADC Radar-Detect OFDM FSM MDI MDI-MUX RF 3-Wire TX-FSM RF-Conrtol PowerEstimation RX-FSM PA-DAC PA-ADC CCK/CW Detect CCK PHY Resampling 22/20 MHz CLK22 MMI_CCK MMI-APB MMI Features ■ Modem data interface (MDI) to WLAN MAC controller, PMB 8789 ■ Modem management interface (MMI) to WLAN MAC controller, PMB 8789 ■ Serial 3 wire control interface to dual-band RF transceiver PMB 8680 ■ Analog RX/TX IQ-interface ■ JTAG Test Access Port (TAP) ■ Engineering test interface for real time debugging ■ Parallel control RF-port ■ Integrated PLL ■ ■ ■ ■ ■ ■ APB-Master Support of OFDM modulation/demodulation 6/9/12/18/24/36/54 Mbit/s rate according to 802.11a/g standard Interpolation/Decimation Automatic gain control Channel tracking Supports DSSS/CCK for 1/2/5.5 and 11 Mbit/s rate according 802.11b standard Simultaneous DSSS-/CCK- and OFDM-preamble detection for 802.11g operation Ordering Information Please contact the local Infineon sales office for dedicated information on our Wireless LAN products Type Sales Code Package WLAN 802.11a/g PHY PMB 8787 P-LFBGA-81 How to reach us: http://www.infineon.com Published by Infineon Technologies AG, St.-Martin-Strasse 53, 81669 München © Infineon Technologies AG 2003. All Rights Reserved. Ant.-Sw. RXEN TXEN PAON Attention please! The information herein is given to describe certain components and shall not be considered as warranted characteristics. Terms of delivery and rights to technical change reserved. We hereby disclaim any and all warranties, including but not limited to warranties of non-infringement, regarding circuits, descriptions and charts stated herein. Infineon Technologies is an approved CECC manufacturer. Information For further information on technology, delivery terms and conditions and prices please contact your nearest Infineon Technologies Office in Germany or our Infineon Technologies Representatives worldwide. Published by Infineon Technologies AG Warnings Due to technical requirements components may contain dangerous substances. For information on the types in question please contact your nearest Infineon Technologies Office. Infineon Technologies Components may only be used in lifesupport devices or systems with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system, or to affect the safety or effectiveness of that device or system. Life-support devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered. Printed in Germany PS 03031. NB