VSC8504XKS-05

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1. Describe

The VSC8504XKS-05 is a low-power, quad-port Gigabit Ethernet transceiver with four SerDes interfaces for quad-port dual-media functionality. It also includes an integrated four-port 2-wire serial multiplexer (MUX) for controlling SFP or PoE modules. It features low electromagnetic interference (EMI) line drivers and integrated line-side termination resistors to save power and printed circuit board (PCB) space. The VSC8504XKS-05 includes dual recovered clock outputs to support Synchronous Ethernet applications. A programmable clock squelch control is included to suppress unwanted clock propagation and help prevent timing loops. The VSC8504XKS-05 also supports a ring resiliency feature that allows the PHY port of a 1000BASE-T connection to switch between master and slave timing without interrupting the 1000BASE-T link. The VSC8504XKS-05 uses Microsemi's EcoEthernet v2.0 PHY technology, which supports energy-efficient features such as Energy Efficient Ethernet (EEE), ActiPHY link downstream energy saving, and PerfectReach which adjusts power based on cable length. It also supports fully optimized power consumption at all link speeds. Microsemi's mixed-signal and digital signal processing (DSP) architecture is VSC8504XKS-05, which ensures robust performance even under adverse environmental conditions. It supports half-duplex and full-duplex 10BASE-T, 100BASE-TX, and 1000BASE-T communication speeds over Category 5 (Cat5) unshielded twisted-pair (UTP) cables over distances of more than 100 meters for NEXT, FEXT, echo and other types of ambient and system electrical noise. The device also supports four dual media ports and can support up to four 100BASE-FX, 1000BASE-X fiber optic and/or tri-speed copper SFPs.

2. Iow power

    1. Low power consumption, approximately 425 mW per port in 1000BASE-T mode, approximately 200 mW per port in 100BASE-TX mode, approximately 225 mW per port in 10BASE-T mode, at 100BASE-FX and 1000BASE-X modes

    2. ActiPHY™ link off to save power

    3. PerfectReach™ intelligent cable distance algorithm

    4. IEEE 802.3az-2010 Energy Efficient Ethernet Idle Power Conservation

3. Advanced Carrier Ethernet Support

    1. Recovered clock outputs with programmable clock squelch control and fast link failure indication (<1 ms; worst-case <3 ms) for G.8261 Synchronous Ethernet applications

    2. Ring resiliency for maintaining linkup integrity when switching between 1000BASE-T master and slave timing

    3. Supports IEEE 802.3bf timing and synchronization standard

    4. Integrated quad two-wire serial mux to control SFP and PoE modules

    5. Support for IEEE 802.3ah unidirectional transport for 100BASE-FX and 1000BASE-X fiber media

4. Wide Range of Support

    1. Compliant with IEEE 802.3 (10BASE-T, 100BASE-TX, 1000BASE-T, 100BASE-FX, and 1000BASE-X) specifications

    2. Support for >16 kB jumbo frames in all speeds with programmable synchronization FIFOs

    3. Supports Cisco QSGMII v1.3, Cisco SGMII v1.9, 1000BASE-X MACs, IEEE 1149.1 JTAG boundary scan, and IEEE 1149.6 AC-JTAG

    4. Available in a low-cost, 256-pin BGA package with a 17 mm × 17 mm body size

5. Flexibility

    1. VeriPHY® cable diagnostics suite provides extensive network cable operating conditions and status

    2. Patented, low EMI line driver with integrated line side termination resistors

    3. Four programmable direct-drive LEDs per port with adjustable brightness levels using register controls; bi-color LED support using two LED pins

    4. Serial LED interface option

    5. Extensive test features including near end, far end, copper media connector, SerDes MAC/media loopback, and Ethernet packet generator with CRC error counter to decrease time-to-market