• Selects among four differential inputs
• Provides two copies of the selected input
• DC-to >3.2Gbps data rat throughput
• <620ps In-to-Out tpd
• <150ps tr/tf time
• Unique input isolation design minimize crosstalk
• <1psRMS random jitter
• <10psPP deterministic jitter
• <10psPP total jitter (clock)
• <0.7psRMS crosstalk-induced jitter
• Internal input termination
• Unique input termination and VTpin accepts DC-coupled and AC-coupled inputs (LVDS, LVPECL, CML)
• 350mV LVDS output swing
• Power supple 2.5V ±5%
• -40°C to +85°C temperature range
• Available in 32-pin (5mm x 5mm) MLF® package

The SY89546U is a precision, High-speed 4:1 differential multiplexer that provides two copies of the selected input. The high speed LVDS (350mV) compatible outputs with a guaranteed throughput of up to 3.2Gbps over temperature and voltage.The SY89546U differential inputs include Micrel's unique 3-pin internal termination design that allows access to the termination network through a VT pin. This feature allows the device to easily interface to different logic standards, both AC- and DC-coupled without external resistor-bias and termination networks. The result is a clean, stub-free, low jitter interface solution.The SY89546U operates from a single 2.5V supply, and is guaranteed over the full industrial temperature range (-40°C to +85°C). For applications that require a 3.3V supply, consider the SY89547L. Or, for applications that only require one differential output, consider the SY89544U or SY89545L. The SY89546U is part of Micrel's Precision Edge®product family.