Texas Instruments LMK1C110xA Asynchronous LVCMOS Clock Buffers

Texas Instruments LMK1C110xA Asynchronous LVCMOS Clock Buffers are modular, low-skew, high-performance, general-purpose clock buffers designed with a modular approach. Five different fan-out variations, 1:2, 1:3, 1:4, 1:6, and 1:8, are available. All of the devices within the family are pin-compatible with each other and backward compatible with the CDCLVC110x family for easy handling.

The Texas Instruments LMK1C110xA supports an asynchronous output enable control (1G) that switches the outputs into a low state when 1G is low. Asynchronous enable and disable are helpful for 1PPS applications and DC input operations. These have a fail-safe input that prevents oscillation at the outputs without an input signal and allows input signals before VDD is supplied.

Features

  • High-performance 1:2, 1:3, 1:4, 1:6 and 1:8 LVCMOS clock buffer
  • Extremely low additive jitter
    • LMK1C1102A, LMK1C1103A and LMK1C1104A
      • 7.5fs typical at VDD = 3.3V
      • 10fs typical at VDD = 2.5V
      • 19.2fs typical at VDD = 1.8V
    • LMK1C1106A and LMK1C1108A
      • 12fs typical at VDD = 3.3V
      • 15fs typical at VDD = 2.5V
      • 28fs typical at VDD = 1.8V
  • Very low output skew
    • LMK1C1102A, LMK1C1103A and LMK1C1104A <50ps
    • LMK1C1106 and LMK1C1108 <55ps
  • Very low propagation delay <3ns
  • Asynchronous output enable
  • Supply voltage of 3.3V, 2.5V, or 1.8V, with fail-safe inputs that are 3.3V-tolerant input at all supply voltages
  • fmax = 250MHz for 3.3V fmax = 200MHz for 2.5V or 1.8V
  • Operating temperature range of -40°C to +125°C

Applications

  • Factory automation and control
  • Telecommunications equipment
  • Data center and enterprise computing
  • Grid infrastructure
  • 1PPS applications
  • Motor drives
  • Medical imaging

Functional Block Diagram

Block Diagram - Texas Instruments LMK1C110xA Asynchronous LVCMOS Clock Buffers
Publicerad: 2025-08-13 | Uppdaterad: 2025-08-20