DS3104-SE Datasheet PDF | Maxim Integrated

Maxim Integrated DS3104-SE

The DS3104-SE is a low-cost, feature-rich timing IC for line cards with synchronous Gigabit Ethernet (GbE), 10-Gigabit Ethernet (10GbE), and Fast Ethernet ports. The DS3104-SE enables synchronization in Ethernet line cards in both the transmit and receive directions. Each Ethernet PHY then synthesizes a transmit bit clock that is frequency-locked to the xMII clock, and thus to the system clock and network clock.

Part No.	DS3104-SE
Datasheet	DS3104-SE Download
Manufacturer	Maxim Integrated
Description	Line Card Timing IC
Buy	Stock & Price

GENERAL DESCRIPTION

ITU-T recommendation G.8261 (formerly G.pactiming) specifies that network synchronization can be carried over packet links by synchronizing the bit clock of the physical layer as is currently done on SONET/SDH links. In the transmit direction, the device accepts traditional SONET/SDH system clocks such as 19.44MHz from redundant system timing cards and synthesizes frequency-locked xMII clock rates, such as the 125MHz GTX_CLK for GbE GMIIs. In the receive direction, each PHY divides down the recovered bit clock to produce the receive xMII clock. The DS3104-SE accepts the xMII clock from any of several Ethernet ports and forwards a frequency-locked system clock, such as 19.44MHz, to the system timing cards. SONET/SDH ports are also supported.

FEATURES

♦ Timing Card to Line Card Path ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ Two Input Clocks from Master and Slave Timing Cards (LVDS/LVPECL or CMOS/TTL) Optional Frame Sync Inputs and Outputs Continuous Input Clock Quality Monitoring Hitless Refer...