NWK914GP1N

NWK914D NWK914D PHY/PMD High Speed Copper Media Transceiver Preliminary Information DS4829 - 1.1 December 1997 The NWK914D is a Physical Layer device designed for use in 100BASE-TX applications. The NWK914D has integrated the 100mb/s transceiver, clock and data recovery and NRZI conversion circuitry. It is designed for use in cost effective NIC adapter cards and 100BASE-TX repeater and switch applications. The device connects through a 5 bit symbol interface directly with any MAC controller that includes the PCS layer, resulting in a simple and cost effective solution. It will also interface with a PCS device such as the NWK935 to form a complete 100BASE-TX Physical Layer for connection to the IEEE 802.3 standard MII interface. RDAT4 RDAT3 RDAT2 RDAT1 RDAT0 TXC TTLVCC REFCLK TDAT0 TDAT1 TDAT2 TDAT3 52 51 50 49 48 47 46 45 44 43 42 41 40 TDAT4 TTLGND N/C N/C RXC SDT RDLV CC N/C N/C RXPLLGND LFRB LFRA RXPLLV CC RXVCC FEATURES s Compatible with IEEE-802.3 Standards s Operates over 100 Meters of STP and Category 5 UTP cable s Five Bit TTL Level Symbol Interface s Integrated Clock and Data Recovery s Supports Full-duplex Operation s Integral 10 Mb/s Buffer for Dual 10 Mb/s & 100 Mb/s Applications s Adaptive Equalization s 25MHz to 125MHz Transmit Clock Multiplier s Programmable TX Output Current s Base Line Wander Correction 1 2 3 4 5 6 7 8 9 10 11 12 13 39 38 37 36 35 34 33 32 31 30 29 28 27 TTLGND TEST TESTIP N10/100 LBEN TDLV CC TXOE TXPLLV CC LFTA LFTB TXPLLGND BGAPG...