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| PRODUCT Dual-Band RF Transceiver for WLAN System Solutions The PMB 8680 is a low power, high performance dual-band RF Transceiver for IEEE Wireless LAN Standards 802.11a, 11b and 11g. The PMB 8680 is designed to form an Infineon WLAN chipset in combination with the PMB 8787 Baseband PHY IC, the PMB 8825 dual-band Power Amplifier and the PMB 8789 MAC IC. This highly integrated solution together with low external component requirement (low Bill of Material) shortens time to market. BRIEF Features 0.25 m BiCMOS technology 3-wire bus control Supply voltage 3.0 ... 3.6 V WirelessLAN Applications High data-rate wireless LAN PC card wireless LAN adapters (Mini) PCI wireless LAN cards CardBus wireless LAN adapters Compact flash wireless LAN cards USB wireless LAN adapters Wireless LAN modules, access points, bridge products, and point-to-multipoint systems Alternative direct supply of regulated supply voltage 2.5 ... 2.7 V 2 integrated voltage regulators (LDO) Power down modes Operational temperature -30 ... +85C Frequency bands: 2.4 - 2.5 GHz /5.15 - 5.875 GHz Small size VQFN-48 package (7x7x0.9 mm) PMB 8680 Dual-Band RF Transceiver Never stop thinking. PRODUCT Block Diagram BRIEF RX 2.4 GHz RX 2.4 GHz RX Filter / PGC RX 5 GHz RX 5 GHz RSSI RSSI 2.4 / 5 GHz CCK Filter PGC1 PGC2 I Q OFDM Filter TX 5 GHz 0 TX 5 GHz TX 2.4 GHz TX 2.4 GHz 90 PLL Loop Filter 5 GHz 2.4 GHz 40 MHz Out Synthesizer 3-Wire Bus 3-Wire Bus I Q Features High sensitivity ~10 dBm better than IEEE requirements - 74 dBm@54 Mbit/s - 90 dBm@6 Mbit/s Highly integrated single chip WLAN RF Transceiver Dual-band solution for 2.4 GHz and 5 GHz Dual mode solution for CCK and OFDM Direct conversion receiver for 802.11b Low IF receiver for 802.11a and 11g Integrated channel filter and PGC DC offset cancellation Synthesizer with integrated VCO, PLL, 40 MHz XO with digital frequency calibration I-Q differential interface for RX and TX multiplexed for 802.11a, 11b and 11g Low BOM, low external component count Highly integrated solution - No external SAW required - On-chip low drop regulator Low power dissipation - 180 mA for 802.11a - 140 mA for 802.11g 3-wire bus control interface Direct modulation transmitter with programmable output power -24 ... -4 dBm Ordering Information Please contact the local Infineon sales office for dedicated information on our Wireless LAN products Type WLAN RF Transceiver Sales Code PMB 8680 Package P-VQFN-48 How to reach us: http://www.infineon.com Published by Infineon Technologies AG, St.-Martin-Strasse 53, 81669 Munchen (c) Infineon Technologies AG 2003. All Rights Reserved. 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. 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 Published by Infineon Technologies AG |
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