KS8737 Product Brief Revision 1.0 10/100 LV PHY FX Features Operating at 3.3 Volts to meet low voltage and low power requirement, the KS8737 is a 10/100BaseTX/FX Physical Layer Transceiver which provides MII interface for transmit and receive data. It contains the 100BaseTX/ FX Physical Medium Attachment (PMA), Physical Medium Dependent (PMD), and Physical Coding Sublayer (PCS) functions. Moreover, the KS8737 has an onchip 10BaseT encoder/decoder and output filtering, which eliminates the need for external filters and allows a single set of line magnetics to be used to meet the requirements for both 100BaseTX and 10BaseT. The KS8737 can automatically configure itself for 100 or 10 Mbps and full or half duplex operation, using the on-chip Auto-Negotiation algorithm. It’s an ideal physical layer transceiver choice for 100BaseTX 100BaseFX/10BaseT applications. • • • • • • • • • • • • • Single chip 100BaseTX/100BaseFX/10BaseT physical layer solution 3.3V CMOS design, 70mA operating current (excluding Transmit output driver current) Fully compliant to IEEE 802.3u standard Supports Media Independent Interface (MII) mode Supports 10BaseT, 100BaseTX and 100Base-FX fiber channel with Far_End_Fault Detection Supports power down and power saving modes Configurable through MII serial management ports or via external control pins Supports auto-negotiation and manual selection for 10Mbps or 100Mbps speeds Supports auto-negotiation and manual selection for fulland half-duplex modes Standard CSMA/CD or full duplex operation at 10Mbps or 100Mbps On-chip built-in filtering for both 100BaseTX and 10BaseT LED outputs for link, activity, full/half duplex, collision and speed Available in 64-pin TQFP surface mount package (10 mm × 10 mm × 1.0 mm) Block Diagram TXP TXM Transmitter 10/100 Pulse Shaper NRZ/NRZI MLT3 Encoder 4B/5B Encoder Scrambler Parallel/Serial Parallel/Serial Manchester Encoder RXP RXM Adaptive EQ Base Line Wander Correction MLT3 Decoder NRZI/NRZ Clock Recovery 4B/5B Decoder Descrambler Serial/Parallel MII Registers and Controller Interface Auto Negotiation 10BaseT Receiver Manchester Decoder Serial/Parallel TXD3 TXD2 TXD1 TXD0 TXER TXC TXEN CRS COL MDIO MDC RXD3 RXD2 RXD1 RXD0 RXER RXDV RXC FXMODEB FIBIP Power Down or Saving FIBIM X1 X2 Micrel Semiconductor PLL PWRDWN LED Driver PWRSAVE TEL: 1.800.401.9572 FAX: 1.408.474.0159 HTTP:// www.micrel.com LINK ACT COL FDX SPD 1 System Level Applications The KS8737 is ideal for 3.3V applications where power and cost are important issues. A standard MII port is supplied for easy MAC integration. Management can be controlled by either strapping control pins or using the MII management port. A single port example of the KS8737 usage is shown below. Contact Micrel Semiconductor 2 Location Corporate HQ Address 1849 Fortune Drive San Jose, CA 95131 USA Telephone +1 (408) 944-0800 Fax +1-408-944-0970 Eastern USA Southeast USA Central USA 93 Branch Street 8105 Bluffridge Drive 722 S. Denton Tap Suite 130 Medford, NJ 08055 USA Raleigh, NC 27615 USA Coppell, TX 75019 USA +1 (609) 654-0078 +1 (919) 870-7650 +1 (972) 393-2533 +1 (609) 546-0989 +1 (919) 870-7651 +1 (972) 393-2540 Western USA Northwest USA Southwest USA 2180 Fortune Drive 401 NE Ravenna Blvd. Box 152 7545 Irvine Center Dr. Suite 200 San Jose, CA 95131 USA Seattle, WA 98115 USA Irvine, CA 92618 USA +1 (408) 944-0800 +1 (206) 526-7299 +1 (949) 623-8343 +1-408-944-0970 +1 (206) 526-8829 +1 (949) 623-8305 Korea Taiwan 4F, KTB Building, 826-14, Yeoksam-dong, Kangnam-ku 7F-6, No. 237, Sec. 2, Fu-Hsing South Road Seoul 135-080 Korea Taipei, Taiwan, R.O.C. +82 (2) 3466-3000 +886 (2) 2705-4976 +82 (2) 3466-2999 +886 (2) 2705-4977 China 12A, XingHao City Garden Shenzhen, P.R. China +86 (755) 2693-4601 Japan 1-16-15 Dogenzaka, Shibuyaku Tokyo 150-0043 Japan +81 (3) 5428-0871 +81 (3) 5428-0872 Europe Western Europe 1st Floor, 3 Lockside Place, Mill Lane 10, avenue du Quebec, Villebon BP116 Newbury, Berks RG14 5QS UK Courtaboeuf Cedex 91944 France +44 1635 524455 +33 (0) 1 6092 4189 +44 1635 524466 +33 (0) 6 0868 4489 Micrel Semiconductor TEL: 1.800.401.9572 FAX: 1.408.474.0159 HTTP:// www.micrel.com STOCK NO. M-1003