High performance universal fan-out clock buffers

Universal fan-out clock buffers CDCLVC1310 Product Folder LMK00101 Product Folder LMK00105 Product Folder LMK00301 Product Folder LMK00304 Product Folder LMK00306 Product Folder LMK00308 Product Folder CDCUN1208LP

Texas Instruments offers the broadest selection of ultra low-jitter, low power universal fan-out clock buffers. Combined with Texas Instruments clock generators, these products can solve the complete clock tree needs across the communications, consumer and industrial markets and improve system performance and accuracy.

Use the interactive block diagram on the right, to click on each block and learn more about each of our clock distribution and generation products.

Key features

Universal LVCMOS clock buffers
CDCLVC1310, CDCUN1208LP, LMK00101, LMK00105

  • Ultra low noise floor yields industry leading additive jitter (25 fs, typ) from 12 kHz to 20 MHz at 125 MHz
  • 2 universal inputs + Crystal input, 10 output LVCMOS clock buffers
  • Low output skew of 30 ps (typ)
  • Crystal input frequencies supported are from 8 MHz to 50 MHz
  • Differential and single-ended input frequencies supported are up to 200 MHz
  • Universal Input (2.5V, 3.3V) and Output (1.5 V, 1.8 V, 2.5 V, 3.3 V) supply voltage
  • Support low driver output impedance
  • Excellent PSRR performance (-44 dBc, typ)
  • Synchronous and glitch-free output enable is available
  • CDCUN1208LP:
    • 2 universal inputs, 16 output LVCMOS clock buffers
    • Input Divider, Edge Rate Control
    • Wide I/O Supply Range (1.8V, 2.5V, or 3.3V)

Universal differential-ended clock buffers CDCUN1208LP, LMK00301, LMK00304, LMK00306, LMK00308

  • 2 universal inputs + Crystal input, universal output clock buffers
  • Differential-ended input frequencies supported are up to 3.1 GHz
  • One crystal input accepts a 10 to 40 MHz crystal or single-ended clock
  • Universal outputs support LVPECL, LVDS, CML, SSTL, HSTL signals and operate at 2.5 V or 3.3 V power supply voltage
  • Ultra low additive jitter (51 fs) from 12 kHz to 20 MHz for LVPECL output at 156.25 MHz
  • Selectable output type (per bank): LVPECL, LVDS, HCSL, or Hi-Z
  • Industrial temperature range: -40° C to +85° C
  • CDCUN1208LP:
    • 2 universal input, 8 output HCSL or LVDS clock buffers
    • Input Divider, Edge Rate Control
    • Wide I/O Supply Range (1.8V, 2.5V, or 3.3V)

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Application notes

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