Renesas Electronics RC192x Clock Muxes

Renesas Electronics RC192x Clock Muxes are ultra-high performance clock muxes supporting PCIe Gen5 and Gen6. These muxes provide a Loss-Of-Signal (LOS) output for system monitoring and redundancy. The RC192x muxes feature Power Down Tolerance (PDT), Flexible Power Sequencing (FPS), Automatic Clock Parking (ACP), Common Clocked (CC), and Independent Reference (IR). These clock muxes drive source-terminated and double-terminated loads up to 400MHz. The RC192x clock muxes offer 2, 4, 8, or 16 Low-Power (LP) HCSL output saves up to 64 resistors. Typical applications include cloud/high-performing computing, nVME storage, networking, and accelerators.

Features

2, 4, 8, or 16 Low-Power (LP) HCSL outputs save up to 64 resistors
2:N or 2 x 1:N/2 modes (N is the number of outputs)
85Ω or 100Ω output impedance
Outputs drive both source-terminated and double-terminated loads
Open-drain LOS output
FPS allows inputs and clocks to be applied before power is applied or power to be applied with no input clock
ACP cleanly parks outputs in a low/low state when the selected input clock is lost

Spread-spectrum tolerant
Up to 8 output enable pins
Selectable 4-wire Side-Band-Interface (SBI) for hardware output enable (RC19208)
CLKIN pins directly support HCSL or LVDS signaling levels
Common Clocked (CC)
Independent Reference (IR) with and without spread spectrum
3mm x 3mm 20-VFQFPN to 6mm x 6mm 80-GQFN packages

Specifications

7fs RMS PCIe Gen5 additive phase jitter
4fs RMS PCIe Gen6 additive phase jitter
9fs RMS DB2000Q additive phase jitter

37fs RMS at 156.25MHz and 12kHz to 20MHz additive phase jitter
1MHz to 400MHz operation with ACP disabled
25MHz to 400MHz operation with ACP enabled

Applications

Cloud/high-performance computing
nVME storage

Networking
Accelerators

Renesas Electronics RC192x Clock Muxes

Features

Specifications

Applications

Block Diagram and Mux Logic

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