Description

The SY58021U is a 2.5V/3.3V precision, high-speed, fully differential 1:4 LVPECL fanout buffer. Optimized to provide four identical output copies with less than 15ps of skew and less than 10pspp total jitter, the SY58021U can process clock signals as fast as 4GHz.

Specifications and features

■ Precision 1:4, LVPECL fanout buffer
■ Guaranteed AC performance over temperature/voltage:
• >4GHz fMAX (clock)
• <100ps tr / tf Times
• <300ps tpd
• <15ps max skew
■ Low jitter performance
• <10pspp total jitter (clock)
• <1psrms random jitter (data)
• <10pspp deterministic jitter (data)
■ Accepts an input signal as low as 100mV
■ Unique input termination and VT pin accepts DC-coupled and AC-coupled differential inputs: LVPECL, LVDS, and CML
■ 100k LVPECL compatible 800mV swing output
■ Power supply 2.5V ±5% and 3.3V ±10%
■ –40°C to +85°C temperature range
■ Available in 16-pin (3mm × 3mm) MLF™ package

Application Scenarios

This model is suitable for applications that require precise and high-speed LVPECL fanout buffering. It is ideal for use in systems that require clock synchronization and data accuracy, such as communication devices, computer systems, and high-speed data processing equipment.

Comparison

Advantages:
- Provides four identical output copies with less than 15ps of skew and less than 10pspp total jitter
- Can process clock signals as fast as 4GHz
- Accepts various input signal types: LVPECL, LVDS, and CML
- Compact size with a 16-pin (3mm × 3mm) MLF™ package

Disadvantages:
- Requires power supply of either 2.5V ±5% or 3.3V ±10%
- Temperature range limited to –40°C to +85°C