Realtek PDF datasheet RTL8192 for free download
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The Realtek RTL8192DE is a highly integrated single-chip MIMO (Multiple In, Multiple Out) Wireless LAN (WLAN) PCI Express network interface controller complying with the wireless high throughput IEEE 802.11n specification. It combines a configurable dual MAC, 2T2R capable baseband and 2.4GHz/5GHz band RF in a single chip. The RTL8192DE provides a complete solution for a high-performance wireless client.
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The RTL8192DE implements dual MAC by PCI Express multi-function capability. The dual MAC feature enables RTL8192DE to access two different wireless networks and to act as an WiFi station and an AP concurrently. The RTL8192DE also supports WiFi Direct feature that can easily build a WiFi P2P PAN network.
The RTL8192DE baseband implements Multiple Input, Multiple Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) with two transmit and two receive paths (2T2R). Features include two spatial stream transmissions, short Guard Interval (GI) of 400ns, spatial spreading, and support for both 20MHz and 40MHz channel bandwidth. Moreover, RTL8192DE provides one spatial stream space-time block code (STBC) to extend the range of transmission. At the receiver, extended range and good minimum sensitivity is achieved by having receiver diversity up to2 antennas. As the recipient, the RTL8192DE also supports explicit sounding packet feedback that helps senders with beamforming capability. With 2 independent RF blocks, the RTL8192DE can perform fast roaming without link interruption.
For legacy compatibility, Direct Sequence Spread Spectrum (DSSS), Complementary Code Keying (CCK) and OFDM baseband processing are included tosupport all IEEE 802.11b, 802.11g and 802.11a data rates. Differential phase shift keying modulation schemes, DBPSK and DQPSK with data scrambling capability are available, and CCK provides support for legacy datarates, with long or short preamble. The high speed FFT/IFFT paths, combined with BPSK, QPSK, 16QAM, and 64QAM modulation of the individual subcarriers, and rate compatible punctured convolutional coding with coding rate of 1/2, 2/3, 3/4, and 5/6, provide the higher data rates than 54Mbps upto 300Mbps for IEEE 802.11n MIMO OFDM respectively.
The RTL8192DE builds in an enhanced signal detector, an adaptive frequency domain equalizer, and a soft-decision Viterbi decoder to alleviate severe multi-path effects and mutual interference in the reception of multiple streams. For better detection quality, receive diversity with Maximal-Ratio-Combine (MRC) applying up to two receive paths is implemented. Robust interference detection and suppression are provided to protect against Bluetooth, cordless phone, and microwave oven interference.
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Download PDFfrom 2011-04-08