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CS8952-CQZ Datasheet(PDF) 1 Page - Cirrus Logic |
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CS8952-CQZ Datasheet(HTML) 1 Page - Cirrus Logic |
1 / 81 page Copyright © Cirrus Logic, Inc. 2007 (All Rights Reserved) http://www.cirrus.com Features Single-Chip IEEE 802.3 Physical Interface IC for 100BASE-TX, 100BASE-FX and 10BASE-T Adaptive Equalizer provides Extended Length Operation (>160 m) with Superior Noise Immunity and NEXT Margin Extremely Low Transmit Jitter (<400 ps) Low Common Mode Noise on TX Driver for Reduced EMI Problems Integrated RX and TX Filters for 10BASE-T Compensation for Back-to-Back “Killer Packets” Digital Interfaces Supported – Media Independent Interface (MII) for 100BASE-X and 10BASE-T – Repeater 5-bit code-group interface (100BASE-X) – 10BASE-T Serial Interface Register Set Compatible with DP83840A IEEE 802.3 Auto-Negotiation with Next Page Support Six LED drivers (LNK, COL, FDX, TX, RX, and SPD) Low power (135 mA Typ) CMOS design operates on a single 5 V supply Description The CS8952 uses CMOS technology to deliver a high- performance, low-cost 100BASE-X/10BASE-T Physical Layer (PHY) line interface. It makes use of an adaptive equalizer optimized for noise and near end crosstalk (NEXT) immunity to extend receiver operation to cable lengths exceeding 160 m. In addition, the transmit cir- cuitry has been designed to provide extremely low transmit jitter (<400 ps) for improved link partner perfor- mance. Transmit driver common mode noise has been minimized to reduce EMI for simplified FCC certification. The CS8952 incorporates a standard Media Indepen- dent Interface (MII) for easy connection to a variety of 10 and 100 Mb/s Media Access Controllers (MACs). The CS8952 also includes a pseudo-ECL interface for use with 100Base-FX fiber interconnect modules. ORDERING INFORMATION See “Ordering Information” on page 80. TX_EN TX_ER/TXD4 TXD[3:0] TX_CLK MDC MII_IRQ MDIO CRS COL RX_ER/RXD4 RX_DV RXD[3:0] RX_CLK RX_EN TX+, TX- TX_NRZ+, TX_NRZ- RX_NRZ+, RX_NRZ- RX+, RX- LED1 LED2 LED3 LED4 LED5 10/100 M U X 4B/5B Decoder Descrambler Manchester Encoder Scrambler Fiber NRZI Interface MLT-3 Encoder 10BaseT Filter Slew Rate Control M U X 10/100 4B/5B Encoder ECL Driver ECL Receiver Adaptive Eq. & Baseline Wander Compensation 10BaseT Filter LED Drivers 100BaseT Slicer 10BaseT Slicer Fiber NRZI Interface MLT-3 Decoder Manchester Decoder Auto Negotiation Timing Recovery MII Control/Status Registers Link Management CS8952 10BaseT/100Base-X Transceiver JAN ‘07 DS206F1 CS8952 CrystalLAN™ 100BASE-X and 10BASE-T Transceiver |
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