P R O D U C T B R I E F 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. WirelessLAN Applications Features ■ 0.25 µm BiCMOS technology ■ High data-rate wireless LAN ■ ■ 3-wire bus control ■ PC card wireless LAN adapters Supply voltage 3.0 ... 3.6 V ■ (Mini) PCI wireless LAN cards ■ Alternative direct supply of regulated supply voltage ■ CardBus wireless LAN adapters 2.5 ... 2.7 V ■ Compact flash wireless LAN cards ■ 2 integrated voltage regulators (LDO) ■ USB wireless LAN adapters ■ Power down modes ■ Wireless LAN modules, access points, bridge ■ Operational temperature -30 ... +85°C ■ Frequency bands: 2.4 - 2.5 GHz /5.15 - 5.875 GHz ■ Small size VQFN-48 package (7x7x0.9 mm) P M B products, and point-to-multipoint systems 8 6 8 0 Dual-Band RF Transceiver 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 RSSI RX 2.4 GHz RSSI 2.4 / 5 GHz RX 2.4 GHz RX Filter / PGC CCK Filter RX 5 GHz PGC1 PGC2 I Q RX 5 GHz OFDM Filter TX 5 GHz 0˚ 90˚ TX 5 GHz PLL Loop Filter 5 GHz 2.4 GHz 40 MHz Out Synthesizer TX 2.4 GHz 3-Wire Bus 3-Wire Bus TX 2.4 GHz I Q Features ■ High sensitivity ~10 dBm better than IEEE ■ Highly integrated single chip WLAN RF Transceiver requirements ■ Dual-band solution for 2.4 GHz and 5 GHz - 74 dBm@54 Mbit/s ■ Dual mode solution for CCK and OFDM - 90 dBm@6 Mbit/s ■ Direct conversion receiver for 802.11b ■ Low BOM, low external component count ■ Low IF receiver for 802.11a and 11g ■ Highly integrated solution ■ Integrated channel filter and PGC - No external SAW required ■ DC offset cancellation - On-chip low drop regulator ■ Synthesizer with integrated VCO, PLL, 40 MHz XO ■ with digital frequency calibration ■ - 180 mA for 802.11a - 140 mA for 802.11g I-Q differential interface for RX and TX multiplexed for 802.11a, 11b and 11g ■ Low power dissipation ■ Direct modulation transmitter with programmable output power -24 ... -4 dBm 3-wire bus control interface Ordering Information Please contact the local Infineon sales office for dedicated information on our Wireless LAN products Type Sales Code Package WLAN RF Transceiver PMB 8680 P-VQFN-48 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. 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