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LMK1D1212 Datasheet Low Additive Jitter Lvds Buffer

Manufacturer: Texas Instruments

Overview: LMK1D1212, LMK1D1216 SNAS823A – OCTOBER 2021 – REVISED APRIL 2023 LMK1D121x Low Additive Jitter LVDS Buffer.

General Description

The LMK1D1212 clock buffer distributes with minimum skew one of two selectable clock inputs (IN0, IN1) to 12 pairs of differential LVDS clock outputs (OUT0 through OUT11).

Similarly, the LMK1D1216 distributes 16 pairs of differential LVDS clock outputs (OUT0 through OUT15).

The LMK1D121x family can accept two clock sources into an input multiplexer.

Key Features

  • High-performance LVDS clock buffer family: up to 2 GHz.
  • 2:12 differential buffer (LMK1D1212).
  • 2:16 differential buffer (LMK1D1216).
  • Supply voltage: 1.71 V to 3.465 V.
  • Low additive jitter: < 60 fs RMS maximum in 12- kHz to 20-MHz at 156.25 MHz.
  • Very low phase noise floor: -164 dBc/Hz (typical).
  • Very low propagation delay: < 575 ps maximum.
  • Output skew: 20 ps maximum.
  • High-swing LVDS (boosted mode): 500-mV VOD typica.

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