UW2453 Datasheet | Bubec

Description of Change Confidential Doc. #: DS-2453-01 <Rev. 0.0> Page 2/ 24 .. Product # : UW2453 Product Description The UW2453 is a fully integrated single-chip transceiver (including PA) specifically designed for IEEE802.11b/g wireless local area networks (WLANs) applications. It supports data rate 6, 9, 12, 18, 24, 36, 48 and 54 Mbits/s in OFDM mode, 5.5 and 11 Mbits/s in CCK mode, 1 and 2 Mbits/s in DSSS mode. The UW2453 integrates a receiver, transmitter, VCO and PLL as well a power amplifier into a single IC. It uses direct conversion radio architecture to minimize external parts count and power consumption. Only one or two switches, one RF bandpass filter, one lowpass filter and several passive ponents are required to build a spec pliant 11b/g radio. The patented DC cancellation technique allows the receiver set its gain at super fast speed as required for the gain settling in the OFDM mode. The patent pending power amplifier design assures a very good TX linearity at a minimum current consumption. The UW2453 is fabricated by advanced Si Ge Bi CMOS process and is housed in a 48-pin QFN 7x7 mm2 package. The UW2453L is a lower output power and lower current (TX) version of the UW2453. The UW2453L has the same package and pinout. The low power consumption of the UW2453/UW2453L makes it an ideal candidate for WLAN applications in desktop/laptop PC, handheld devices and mobile handsets. 2 o o o o o o o o o o o o o o o o o o o o o o o o o o o Features IEEE 802.11 b/g specification pliant 6, 9, 12, 18, 24, 36, 48 and 54 Mbit/s in OFDM mode 1, 2, 5.5 and 11 Mbits/s in DSSS and CCK mode 2.4 to 2.5 GHz frequency operation - 87 d Bm sensitivity at 11 Mbits/s CCK mode - 73 d Bm sensitivity at 54M bits/s OFDM mode High performance and low power consumption Zero IF receive and direct conversion transmit architecture Integrated low phase noise VCO and PLL loop filter Integrated power amplifier Shared RX and TX filter structure to minimize die size High performance...