Diodes' PI6CG18xxx is a family of very low power PCIe Gen4 multi-output (2/4/8) clock generators. They use a 25 MHz crystal or CMOS reference as an input to generate multiple 100 MHz low power HCSL outputs with on-chip terminations. The on-chip terminations save four external resistors/output and make layout easier. An additional buffered reference output is provided to serve as a low noise reference for other ICs in the circuitry. The PI6CG15xxx is the 1.5 V version of the PI6CG18xxx clock generator series. The PI6CB18xxx is a family of very low power PCIe Gen4 clock buffers with 2/4/6/8 outputs. These buffers include on-chip termination and individual output enables for improved power management.
Feature
- 1.8V supply voltage
- Crystal/CMOS input: 25 MHz
- 4 differential low power HCSL outputs with on-chip termination
- Individual output enable
- Reference CMOS output
- Programmable Slew rate and output amplitude for each output
- Differential outputs blocked until PLL is locked
- Selectable 0%, -0.25% or -0.5% spread on differential outputs
- Strapping pins or SMBus for configuration;
- 3.3V tolerant SMBus interface support
- Very low jitter outputs
- Differential cycle-to-cycle jitter <50ps
- Differential output-to-output skew <50ps
- PCIe Gen1/Gen2/Gen3/Gen4 compliant
- CMOS REFOUT phase jitter is < 1.5ps RMS
- Packaging (Pb-free & Green): 32-lead 5×5mm TQFN
