7-output 1.5 V PCIe Gen1-2-3 Fanout Buffer

The 9DBU0731 is a member of IDT’s 1.5 V Ultra-Low-Power (ULP) PCIe family. The device has 7 output enables for clock management, and 3 selectable SMBus addresses.

• LP-HCSL outputs; save 14 resistors compared to standard HCSL outputs
• 36 mW typical power consumption; ultra low power consumption
• Separate power rail for LP-HCSL outputs can optionally be supplied from any voltage between 1.05 and 1.5 V; maximum power savings
• OE# pin for each output; support DIF power management
• HCSL differential input; can be driven by common clock sources
• Spread spectrum tolerant; allows reduction of EMI
• Programmable slew rate for each output; allows tuning for various line lengths
• Programmable output amplitude; allows tuning for various application environments
• 1 MHz to 167 MHz operating frequency
• 3.3 V tolerant SMBus interface; works with legacy controllers
• Selectable SMBus addresses; multiple devices can easily share an SMBus segment
• Device contains default configuration; SMBus interface not required for device operation
• Space-saving 5x5 mm 40-pin VFQFPN; minimal board space