Description:The 874003-05 is a high performance Differential-to-LVDS Jitter Attenuator designed for use in PCI Express® systems. In some PCI Express® systems, such as those found in desktop PCs, the PCI Express® clocks are generated from a low bandwidth, high phase noise PLL frequency synthesizer. In these systems, a jitter attenuator may be required to attenuate high frequency random and deterministic jitter components from the PLL synthesizer and from the system board. The 874003-05 has a bandwidth of 6.2MHz with <1d
For optimal performance, it's recommended to follow the PCB layout guidelines provided in the datasheet, ensuring a solid ground plane, and using thermal vias to dissipate heat. Additionally, consider using a heat sink or thermal interface material to reduce thermal resistance.
To ensure EMC and reduce EMI, follow the recommended PCB layout, use shielding, and implement filtering and decoupling techniques. Also, consider using a common-mode choke and ferrite beads to reduce emissions.
The recommended power-up sequence is to apply the power supply voltage (VCC) before the input voltage (VIN). For power-down, reverse the sequence. Ensure a monotonic power-up and power-down to prevent latch-up or other issues.
The 874003BG-05LF has built-in overvoltage protection, but it's still important to implement external protection circuitry to prevent damage from voltage spikes or surges. The device can withstand up to 18V, but prolonged exposure above 15V may affect reliability.
The device has a maximum junction temperature (TJ) of 150°C. Derate the power dissipation by 2.5mW/°C above 25°C to ensure reliable operation. Consider using a heat sink or thermal interface material to reduce thermal resistance.
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874003BG-05LF Overview
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