ICS853111BYLF

Clock Buffers, Drivers Overview

The ICS853111BYLF is a low skew, high performance 1-to-10 differential-to-2.5V/3.3V LVPECL/ECL fanout buffer from the HiPerClockS family. It features ten differential outputs and two selectable differential input pairs (PCLKx/nPCLKx) supporting LVPECL, LVDS, CML, and SSTL levels. The device operates with a maximum output frequency exceeding 3GHz. Key electrical parameters include a typical propagation delay of 495ps, output skew of 20ps, part-to-part skew of 85ps, and RMS additive phase jitter under 0.03ps. It supports LVPECL mode (VCC = 2.375V to 3.8V, VEE = 0V) and ECL mode (VCC = 0V, VEE = -3.8V to -2.375V) within an ambient operating temperature range of -40°C to 85°C.

Clock Buffers, Drivers Feature Summary

• Ten differential 2.5V/3.3V LVPECL/ECL outputs
• Two selectable differential input pairs accepting LVPECL, LVDS, CML, SSTL
• Maximum output frequency >3GHz
• Typical output skew of 20ps and part-to-part skew of 85ps

Clock Buffers, Drivers Applications

• Clock distribution systems requiring well-defined performance and repeatability
• High-speed digital interfaces utilizing LVPECL or ECL signaling
• Applications translating single-ended signals to differential LVPECL levels

Clock Buffers, Drivers Procurement Notes

Verify RoHS compliance status for the specific ordering suffix, as the datasheet indicates availability in both standard (RoHS 5) and lead-free (RoHS 6) packages. Confirm package type Y (32-Lead TQFP, E-PAD) matches design requirements. Check current manufacturing status and lifecycle stage through authorized distributors or Renesas Electronics, as IDT products may have transitioned statuses.

Clock Buffers, Drivers Selection Notes

Select this component when a 1-to-10 fanout ratio with sub-nanosecond propagation delay is required. Ensure the system power supply aligns with either the 2.5V or 3.3V LVPECL mode ranges. Verify that the input source signal levels (LVPECL, LVDS, CML, SSTL) are compatible with the PCLKx/nPCLKx inputs. Consider thermal management for the 32-lead TQFP package if multiple outputs are loaded, as total power dissipation increases with active loads.

Clock Buffers, Drivers Part Context

The ICS853111B belongs to the HiPerClockS family of high-performance clock solutions originally developed by Integrated Device Technology (IDT), which was acquired by Renesas Electronics. This series is designed for applications demanding low skew and high repeatability in clock distribution networks.

Clock Buffers, Drivers Replacement Considerations

The datasheet notes pin compatibility with MC100EP111 and MC100LVEP111. Verify functional equivalence and electrical specifications before substitution.

Clock Buffers, Drivers FAQ

Can the ICS853111BYLF accept single-ended input signals?

Yes, the device can translate any single-ended input signal to 3.3V LVPECL levels by applying resistor bias on the nPCLK input.

What is the maximum output frequency supported by this buffer?

The maximum output frequency is specified as greater than 3GHz.

How is the CLK_SEL pin configured to select the input pair?

Setting CLK_SEL to logic high selects the PCLK1/nPCLK1 input pair, while setting it to logic low selects the PCLK0/nPCLK0 input pair.