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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
features 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 and
transmitter, VCO and PLL as well as a power
amplifier into a single IC. Only one or two
switches, one RF bandpass filter, one low
pass filter, and several passive components
are required to build a spec compliant 11b/g
radio. The patented DC cancellation
technique allows the receiver set its gain
at super fast speed 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 with advanced SiGe
BiCMOS process and is housed in a 48-pin QFN
7x7 mm2 package.
The low power consumption of the UW2453
makes it an ideal candidate for WLAN
applications in desktop/laptop PC, handheld
devices, and mobile handsets.
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Features |
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IEEE 802.11 b/g specification compliant |
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6, 9, 12, 18, 24, 36, 48 and 54 Mbit/s in OFDM
mode |
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1, 2, 5.5 and 11 Mbits/s in DSSS and CCK mode |
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2.4 to 2.5 GHz frequency operation |
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–87 dBm sensitivity at 11 Mbits/s CCK mode |
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–73 dBm sensitivity at 54M bits/s OFDM mode |
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High performance and low power consumption |
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Zero IF receive and direct conversion transmit
architecture |
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Integrated low phase noise VCO and PLL loop
filter |
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High performance SD frequency synthesizer |
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High RSSI dynamic range |
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Support antenna diversity |
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Patented super fast DC cancellation |
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Ultra fast digital RX and TX gain settling time |
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Complementary 3-wire bus RX and TX gain control |
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+18 dBm transmit power (54Mbits/s OFDM) |
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+21 dBm transmit power (11Mbits/s CCK) |
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MIMO transceiver support |
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5 uA sleep mode |
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Support 2.7 ~ 3.6 V supply |
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Small 48-pin leadless QFN 7x7 mm2
package |
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SiGe BiCMOS technology |
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Low external component count |
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