特長
- High speed 8:1 differential multiplexer
- One differential 3.3V or 2.5V LVPECL output pair
- Eight selectable differential PCLKx/nPCLKx input pairs
- Differential PCLKx/nPCLKx pairs can accept the following interface levels: LVPECL, LVDS, SSTL
- Maximum output frequency: 2.5GHz
- Translates any single ended input signal to LVPECL levels with resistor bias on nPCLKx input
- Additive phase jitter, RMS: 0.075ps (typical)
- Part-to-part skew: 350ps (maximum)
- Propagation delay: 600ps (maximum)
- LVPECL mode operating voltage supply range: VCC = 2.375V to 3.465V, VEE = 0V
- ECL mode operating voltage supply range: VCC = 0V, VEE = -3.465V to -2.375V
- -40°C to 85°C ambient operating temperature
- Available in lead-free (RoHS 6) package
853S058I - Block Diagram
説明
The 853S058I is an 8:1 Differential-to-3.3V or 2.5V LVPECL / ECL Clock Multiplexer which can operate up to 2.5 GHz. The 853S058I has 8 differential selectable clock inputs. The PCLK, nPCLK input pairs can accept LVPECL, LVDS or SSTL levels. The fully differential architecture and low propagation delay make it ideal for use in clock distribution circuits. The select pins have internal pulldown resistors. The SEL2 pin is the most significant bit and the binary number applied to the select pins will select the same numbered data input (i.e., 000 selects PCLK0, nPCLK0).
