Microchip Technology

The SY58609U is a 2.5/3.3V, high-speed, fully differential CML 2:1 MUX capable of processing clock signals up to 2.5GHz and data patterns up to 4.25Gbps. The SY58609U is optimized to provide a buffered output of the selected input with less than 20ps of skew and less than 10psPP total jitter.The differential input includes Micrel's unique, 3-pin input termination architecture that interfaces to LVPECL, LVDS or CML differential signals, (AC- or DC-coupled) as small as 100mV (200mVpp) without any level-shifting or termination resistor networks in the signal path. For AC-coupled input interface applications, an integrated reference voltage (VREF-AC) is provided to bias the VT pin. The outputs are 400mV CML, with extremely fast rise/fall times guaranteed to be less than 90ps.The SY58609U operates from a 2.5V ±5% supply or 3.3V ±10% supply and is guaranteed over the full industrial temperature range (-40°C to +85°C). For applications that require LVPECL or LVDS outputs, consider Micrel's SY58610U and SY58611U, 2:1 MUX with 800mV and 325mV output swings, respectively. The SY58609U is part of Micrel's high-speed, Precision Edge® product line.

The SY58611U is a 2.5V, high-speed, fully differential LVDS 2:1 MUX capable of processing clocks up to 2.5GHz and data up to 3.2Gbps. SY58611U is optimized to provide a buffered output of the selected input with less than 20ps of skew and less than 10psPP total jitter. Patented MUX Isolation design reduces crosstalk and provides superior signal integrity.The differential inputs include Micrel's unique, 3-pin input termination architecture that interfaces to LVPECL, LVDS or CML differential signals, (AC- or DC-coupled) as small as 100mVPK (200mVpp) without any levelshifting or termination resistor networks in the signal path. For AC-coupled input interface applications, an integrated reference voltage (VREF-AC) is provided to bias the VT pin. The output is LVDS compatible, with rise/fall times guaranteed to be less than 120ps.The SY58611U operates from a 2.5V ±5% supply and is guaranteed over the full industrial temperature range (-40°C to +85°C). For applications that require CML or LVPECL output, consider the SY58609U and SY58610U, 2:1 MUX with 400mV and 800mV output swings respectively. The SY58611U is part of Micrel's high-speed, Precision Edge® product line.

The SY58621L is a low jitter, high-speed transceiver with a variable swing LVPECL transmitter buffer and a CML high-gain receiver optimized for precision telecom and enterprise server transmission line and backplane data management. The SY58621L distributes data to 3.2Gbps guaranteed over temperature and voltage.The SY58621L transmitter differential input includes Micrel's unique, patented 3-pin input termination architecture that directly interfaces to any (AC- or DCcoupled) differential signal as small as 100mV (200mVPP) without any termination resistor network in the signal path. The receiver differential input is optimized to interface directly to AC-coupled signals as small as 10mV (20mVPP). The receiver output is 50Ω source-terminated CML and the transmitter output is variable swing 80mV to 800mV LVPECL with extremely fast rise/fall time.To support remote self-testing, the SY58621L features a high-speed loopback test mode. The input control signal LOOPBACK enables an internal loopback path from the transmitter input to the receiver output.The SY58621L operates from a 3.3V ±10% supply and is guaranteed over the full industrial temperature range of -40°C to +85°C. The SY58621L is part of Micrel's high-speed, Precision Edge® product line. For applications that requires a CML receiver and transmitter, consider the SY58620L.

The SY58627L high-speed, low jitter receive buffer is optimized for backplane and transmission line data-path management applications. The SY58627L is capable of receiving serial data up to 6.4Gbps across up to 36 inches of FR4.The SY58627L differential input includes Micrel's unique, 3-pin input termination architecture that directly interfaces to any differential signal as small as 100mVpk (AC- or DC-coupled) without any termination resistor networks in the signal path. The outputs are 50Ω source-terminated CML optimized to drive 400mVpk into 50Ω (100Ω load across the output pair). The I/O termination is connected to a dedicated VTT pin for added bias flexibility.The SY58627L receiver input provides four levels of equalization to compensate for degraded signals resulting from transmission losses. The equalization is programmed with a three-bit interface.The SY58627L operates at 3.3V ±10% supply and is guaranteed over the full industrial temperature range of -40°C to +85°C. The SY58627L is part of Micrel's high-speed, Precision Edge® product line.

The SY69753AL is a complete Clock Recovery and Data Retiming integrated circuit for OC-3/STS-3 applications at 155Mbps NRZ. The device is ideally suited for SONET/SDH/ATM applications and other high-speed data transmission systems. Clock recovery and data retiming is performed by synchronizing the on-chip VCO directly to the incoming data stream. The VCO center frequency is controlled by the reference clock frequency and the selected divide ratio. On-chip clock generation is performed through the use of a frequency multiplier PLL with a byte rate source as reference. The SY69753AL also includes a link fault detection circuit.

The SY75572L is a high-speed, fully differential 1:2 clock fanout buffer with a 2:1 input MUX optimized to provide two identical output copies with 137fs phase jitter and a maximum of 50ps output-to-output skew. Designed to be used with PCI Express applications, the SY75572L accepts and outputs HCSL or LVDS logic levels.The SY75572L operates from a 3.3V ±5% power supply and is guaranteed over the full industrial temperature range (-40°C to +85°C). It is available in a 16-pin QFN lead-free package.The SY75572L is part of Micrel’s high-speed, ultra-low jitter, PrecisionEdge™ product line. The SY75572L supports PCIe Gen1-Gen3 requirements with sufficient performance margin for pending PCIe Gen4 applications.