Product details

Function Clock buffer, Differential Additive RMS jitter (typ) (fs) 45 Output frequency (max) (MHz) 2000 Number of outputs 16 Output supply voltage (V) 1.8, 2.5, 3.3 Core supply voltage (V) 1.8, 2.5, 3.3 Output skew (ps) 20 Features 2:16 fanout, Universal inputs Operating temperature range (°C) -40 to 105 Rating Catalog Output type LVDS Input type HCSL, LP-HCSL, LVCMOS, LVDS, LVPECL
Function Clock buffer, Differential Additive RMS jitter (typ) (fs) 45 Output frequency (max) (MHz) 2000 Number of outputs 16 Output supply voltage (V) 1.8, 2.5, 3.3 Core supply voltage (V) 1.8, 2.5, 3.3 Output skew (ps) 20 Features 2:16 fanout, Universal inputs Operating temperature range (°C) -40 to 105 Rating Catalog Output type LVDS Input type HCSL, LP-HCSL, LVCMOS, LVDS, LVPECL
VQFN (RGZ) 48 49 mm² 7 x 7
  • 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 typical when AMP_SEL = 1
  • Universal inputs accept LVDS, LVPECL, LVCMOS, HCSL and CML signal levels
  • LVDS reference voltage, V AC_REF, available for capacitive-coupled inputs
  • Industrial temperature range: –40°C to 105°C
  • Packaged in
    • LMK1D1212: 6-mm × 6-mm, 40-pin VQFN (RHA)

    • LMK1D1216: 7-mm × 7-mm, 48-pin VQFN (RGZ)

  • 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 typical when AMP_SEL = 1
  • Universal inputs accept LVDS, LVPECL, LVCMOS, HCSL and CML signal levels
  • LVDS reference voltage, V AC_REF, available for capacitive-coupled inputs
  • Industrial temperature range: –40°C to 105°C
  • Packaged in
    • LMK1D1212: 6-mm × 6-mm, 40-pin VQFN (RHA)

    • LMK1D1216: 7-mm × 7-mm, 48-pin VQFN (RGZ)

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. The inputs can either be LVDS, LVPECL, LP-HCSL, HCSL, CML, or LVCMOS.

The LMK1D121x is specifically designed for driving 50-Ω transmission lines. When driving inputs in single-ended mode, apply the appropriate bias voltage to the unused negative input pin.

The IN_SEL pin selects the input which is routed to the outputs. If this pin is left open, it disables the outputs (static low). The part supports a fail-safe function. The device further incorporates an input hysteresis which prevents random oscillation of the outputs in the absence of an input signal.

The device operates in 1.8-V or 2.5-V or 3.3-V supply environment and is characterized from –40°C to 105°C (ambient temperature).

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. The inputs can either be LVDS, LVPECL, LP-HCSL, HCSL, CML, or LVCMOS.

The LMK1D121x is specifically designed for driving 50-Ω transmission lines. When driving inputs in single-ended mode, apply the appropriate bias voltage to the unused negative input pin.

The IN_SEL pin selects the input which is routed to the outputs. If this pin is left open, it disables the outputs (static low). The part supports a fail-safe function. The device further incorporates an input hysteresis which prevents random oscillation of the outputs in the absence of an input signal.

The device operates in 1.8-V or 2.5-V or 3.3-V supply environment and is characterized from –40°C to 105°C (ambient temperature).

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Technical documentation

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Type Title Date
* Data sheet LMK1D121x Low Additive Jitter LVDS Buffer datasheet (Rev. A) PDF | HTML 12 Apr 2023
User guide LMK1D1216EVM User's Guide PDF | HTML 26 Oct 2021
Certificate LMK1D1216EVM EU RoHS Declaration of Conformity (DoC) 19 Aug 2021

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

LMK1D1216EVM — LMK1D1216 low jitter 2:16 LVDS fan-out buffer evaluation module

LMK1D1216 is a high-performance, low additive jitter LVDS clock buffer with two differential inputs and 16 LVDS outputs. This evaluation module (EVM) is designed to demonstrate the electrical performance of the LMK1D1216. However, this EVM can also be used to evaluate other 48 pin devices in the (...)
User guide: PDF | HTML
Not available on TI.com
Simulation model

LMK1DX IBIS Model (Rev. B)

SNAM251B.ZIP (67 KB) - IBIS Model
Design tool

PLLATINUMSIM-SW PLLatinum Sim Tool

PLLATINUMSIM-SW is a simulation tool that allows users to create detailed designs and simulations of our PLLatinum™ integrated circuits, which include the LMX series of phase-locked loops (PLLs) and synthesizers.

Supported products & hardware

Supported products & hardware

Products
Clock buffers
CDCDB2000 DB2000QL compliant 20-output clock buffer for PCIe® Gen 1 to Gen 5 CDCDB400 4-output clock buffer for PCIe® Gen 1 to Gen 6 CDCDB800 8-output clock buffer for PCIe® Gen 1 to Gen 6 CDCDB803 8-output clock buffer for PCIe® Gen 1 to Gen 6 with selectable SMBus addresses CDCLVC1102 Low jitter, 1:2 LVCMOS fan-out clock buffer CDCLVC1103 Low jitter, 1:3 LVCMOS fan-out clock buffer CDCLVC1104 Low jitter, 1:4 LVCMOS fan-out clock buffer CDCLVC1106 Low jitter, 1:6 LVCMOS fan-out clock buffer CDCLVC1108 Low jitter, 1:8 LVCMOS fan-out clock buffer CDCLVC1110 Low jitter, 1:10 LVCMOS fan-out clock buffer CDCLVC1112 Low jitter, 1:12 LVCMOS fan-out clock buffer CDCLVC1310 Universal input, 10-output low impedance LVCMOS buffer CDCLVD110 1-to-10 LVDS clock buffer up to 900-MHz with minimum skew for clock distribution CDCLVD110A 1-to-10 LVDS clock buffer up to 1100-MHz with minimum skew for clock distribution CDCLVD1204 Low jitter, 2-input selectable 1:4 universal-to-LVDS buffer CDCLVD1208 Low jitter, 2-input selectable 1:8 universal-to-LVDS buffer CDCLVD1212 Low jitter, 2-input selectable 1:12 universal-to-LVDS buffer CDCLVD1213 Low jitter, 1:4 universal-to-LVDS buffer with selectable output divider CDCLVD1216 Low jitter, 2-input selectable 1:16 universal-to-LVDS buffer CDCLVD2102 Low jitter, dual 1:2 universal-to-LVDS buffer CDCLVD2104 Low jitter, dual 1:4 universal-to-LVDS buffer CDCLVD2106 Low jitter, dual 1:6 universal-to-LVDS buffer CDCLVD2108 Low jitter, dual 1:8 universal-to-LVDS buffer CDCLVP110 1:10 LVPECL/HSTL to LVPECL clock driver CDCLVP1102 Low jitter 1:2 universal-to-LVPECL buffer CDCLVP111 1:10 LVPECL buffer with selectable input CDCLVP111-EP HiRel, 1:10 LVPECL buffer with selectable input CDCLVP111-SP 1:10 high speed clock buffer with selectable input clock driver CDCLVP1204 Low-jitter, two-input, selectable 1:4 universal-to-LVPECL buffer CDCLVP1208 Low jitter, 2-input selectable 1:8 universal-to-LVPECL buffer CDCLVP1212 Low jitter, 2-input selectable 1:12 universal-to-LVPECL buffer CDCLVP1216 Low jitter, 2-input selectable 1:16 universal-to-LVPECL buffer CDCLVP2102 Low jitter, dual 1:2 universal-to-LVPECL buffer CDCLVP2104 Low jitter, dual 1:4 universal-to-LVPECL buffer CDCLVP2106 Low jitter, dual 1:6 universal-to-LVPECL buffer CDCLVP2108 Low jitter, dual 1:8 universal-to-LVPECL buffer CDCLVP215 Dual 1:5 high speed LVPECL fan out buffer LMK00301 3-GHz, 10-output differential fanout buffer / level translator LMK00304 3.1-GHz differential clock buffer/level translator with 4 configurable outputs LMK00306 3.1-GHz differential clock buffer/level translator with 6 configurable outputs LMK00308 3.1-GHz differential clock buffer/level translator with 8 configurable outputs LMK00334 4-output PCIe® Gen1/Gen2/Gen3/Gen4/Gen5 clock buffer and level translator LMK00334-Q1 Automotive 4-output PCIe® Gen1/Gen2/Gen3/Gen4/Gen5 clock buffer and level translator LMK00338 8-output PCIe® Gen1/Gen2/Gen3/Gen4/Gen5 clock buffer and level translator LMK1C1102 2-channel output LVCMOS 1.8-V buffer LMK1C1103 3-channel output LVCMOS 1.8-V buffer LMK1C1104 4-channel output LVCMOS 1.8-V buffer LMK1C1106 6-channel output LVCMOS 1.8-V buffer LMK1C1108 8-channel output LVCMOS 1.8-V buffer LMK1D1204 4-channel output LVDS 1.8-V buffer LMK1D1204P 4-channel output LVDS 1.8-V, 2.5-V, and 3.3-V buffer with pin control LMK1D1208 8-channel output LVDS 1.8-V, 2.5-V, and 3.3-V buffer LMK1D1208I 8-channel output, 1.8-V, 2.5-V, and 3.3-V LVDS buffer with I²C LMK1D1208P 8-channel output 1.8-V, 2.5-V, and 3.3-V LVDS buffer with pin control LMK1D1212 12-channel output 1.8-V, 2.5-V, and 3.3-V LVDS buffer LMK1D1216 16-channel output 1.8-V, 2.5-V, and 3.3-V LVDS buffer LMK1D2102 Dual bank 2-channel output LVDS 1.8-V, 2.5-V, and 3.3-V buffer LMK1D2102L Low additive jitter LVDS buffer LMK1D2104 Dual bank 4-channel output 1.8V, 2.5V and 3.3V LVDS buffer LMK1D2106 Dual bank 6-channel output 1.8-V, 2.5-V, and 3.3-V LVDS buffer LMK1D2106L Dual bank 2-channel output LVDS 1.8V, 2.5V and 3.3V buffer with 0.7V output common mode option LMK1D2108 Dual bank 8-channel output 1.8-V, 2.5-V, and 3.3-V LVDS buffer
Clock generators
LMK03318 Ultra-low jitter clock generator family with single PLL LMK03328 Ultra-low jitter clock generator family with two independent PLLs LMK03806 Ultra-low jitter clock generator with 14 outputs
Clock jitter cleaners
LMK04208 Ultra low-noise clock jitter cleaner with 6 programmable outputs LMK04368-EP Enhanced product ultra-low-noise 3.2-GHz JESD204C jitter cleaner LMK04714-Q1 Automotive, ultra low-noise 3.2-GHz, JESD204B and JESD204C dual-loop clock jitter cleaner LMK04803 Low-noise clock jitter cleaner with dual cascaded PLLs and integrated 1.9-GHz VCO LMK04805 Low-noise clock jitter cleaner with dual cascaded PLLs and integrated 2.2-GHz VCO LMK04806 Low-noise clock jitter cleaner with dual cascaded PLLs and integrated 2.5-GHz VCO LMK04808 Low-noise clock jitter cleaner with dual loop PLLs and integrated 2.9-GHz VCO LMK04816 Three input low-noise clock jitter cleaner with dual loop PLLs LMK04821 Ultra low jitter synthesizer and jitter cleaner with JESD204B support LMK04826 Ultra low-noise JESD204B compliant clock jitter cleaner with integrated 1840 to1970-MHz VCO0 LMK04828 Ultra low-noise JESD204B compliant clock jitter cleaner with integrated 2370 to 2630-MHz VCO0. LMK04828-EP Ultra low-noise JESD204B compliant clock jitter cleaner with temperature range -55 to 105c LMK04832 Ultra-low-noise, 3.2-GHz, 15-output, JESD204B clock jitter cleaner with dual loop LMK04832-SEP Radiation-tolerant, 30-krad, ultra-low-noise, 3.2-GHz 15-output JESD204C clock jitter cleaner LMK04832-SP Radiation-hardened-assured (RHA), ultra-low-noise, 3.2-GHz, 15-output clock jitter cleaner LMK04906 Ultra low noise clock jitter cleaner/multiplier with 6 programmable outputs
Clock network synchronizers
LMK05028 Low-jitter dual-channel network synchronizer clock LMK05318 Ultra-low jitter single channel network synchronizer clock with BAW LMK05318B Ultra-low jitter single channel network synchronizer clock with BAW LMK05318B-Q1 Automotive ultra-low jitter network synchronizer and clock generator LMK5B33216 16-output, three DPLL and APLL, network synchronizer with integrated 2.5-GHz bulk-acoustic-wave VCO LMK5B33414 14-output, three DPLL and APLL, network synchronizer with integrated 2.5-GHz bulk-acoustic-wave VCO LMK5C33216 Ultra-low jitter clock synchronizer with JESD204B for wireless communications with BAW LMK5C33216A Three DPLL, three APLL, two-input and 16-output network synchronizer with JESD204B/C and BAW VCO
RF PLLs & synthesizers
LMX1204 12.8-GHz RF buffer, multiplier and divider with JESD204B/C SYSREF support and phase synchronization LMX1214 1:5 18GHz RF buffer and divider with auxiliary clock LMX1906-SP Radiation-hardness-assured (RHA) 15GHz buffer, multiplier and divider with SYSREF and FPGA clock LMX2430 3.0-GHz/0.8-GHz PLLatinum dual high frequency synthesizer for RF personal communications LMX2433 3.6-GHz/1.7-GHz PLLatinum dual high frequency synthesizer for RF personal communications LMX2434 5.0-GHz/2.5-GHz PLLatinum low power dual frequency synthesizer for RF personal communications LMX2470 2.6-GHz delta-sigma fractional-N PLL with 800-MHz integer-N PLL LMX2485 500-MHz to 3-GHz delta-sigma low power dual PLL for RF personal communications LMX2485E 50-MHz to 3-GHz delta-sigma low power dual PLL for RF personal communications LMX2485Q-Q1 500MHz to 3GHz automotive delta-sigma low power dual PLL LMX2486 1-GHz to 4.5-GHz delta-sigma low power dual PLL for RF personal communications LMX2487 1 to 6-GHz delta-sigma low power dual PLLatinum frequency synthesizer with 3.0-GHz integer PLL LMX2487E 3-GHz to 7.5-GHz delta-sigma low power dual PLL for RF personal communications LMX2491 6.4-GHz low noise fractional-N PLL with ramp/chirp generation LMX2492 500MHz to 14GHz wideband, low noise fractional-N PLL with ramp/chirp generation LMX2492-Q1 Automotive grade 500-MHz to 14-GHz wideband, low noise fractional-N PLL with ramp/chirp generation LMX2531 High performance frequency synthesizer system with integrated VCO LMX2541 Ultra-low noise PLLatinum frequency synthesizer with integrated VCO LMX2571 1.34-GHz, low-power, extreme-temperature RF synthesizer with frequency-shift keying (FSK) modulation LMX2571-EP Enhanced-product, 1.34-GHz, low-power, extreme-temperature RF synthesizer with FSK modulation LMX2572 6.4-GHz low-power wideband RF synthesizer LMX2572LP 2-GHz low power wideband RF synthesizer with FSK modulation LMX2581 3.76-GHz wideband frequency synthesizer with integrated VCO LMX2581E 3.8-GHz wideband frequency synthesizer with integrated VCO LMX2582 5.5-GHz high performance, wideband PLLatinum RF synthesizer LMX2592 9.8-GHz wideband frequency synthesizer with integrated VCO LMX2594 15-GHz wideband PLLatinum™ RF synthesizer with phase synchronization and JESD204B support LMX2595 20-GHz wideband RF synthesizer with phase synchronization & JESD204B support LMX2615-SP Space grade 40-MHz to 15-GHz wideband synthesizer with phase synchronization and JESD204B support LMX2694-EP Enhanced product 15-GHz RF synthesizer with phase synchronization TRF3765 300M-4800MHz Low Noise Integer-N/Fractional-N PLL with Integrated VCO and up to 8 Outputs
IQ demodulators
LMX8410L High-Performance Mixer With Integrated Synthesizer
Hardware development
Evaluation board
LMK04832EVM LMK04832 JESD204B Clock Jitter Cleaner/Clock Generator/Distribution Evaluation Module LMX2571EPEVM LMX2571-EP evaluation module for 1.34-GHz, low-power, extreme-temperature RF synthesizer LMX2594PSEVM LMX2594 evaluation module for 15-GHz RF synthesizer with multiple-device phase synchronization XMICR-3P-LMX2492 LMX2492 X-MWblock evaluation modules XMICR-3P-LMX2572 LMX2572 X-MWblock evaluation modules XMICR-3P-LMX2592 LMX2592 X-MWblock evaluation modules XMICR-3P-LMX2594 LMX2594 X-MWblock evaluation modules XMICR-3P-LMX2595 LMX2595 X-MWblock evaluation modules
Software
Application software & framework
TICSPRO-SW Texas Instruments Clocks and Synthesizers (TICS) Pro Software
IDE, configuration, compiler or debugger
CODELOADER CodeLoader Software for device register programming
Support software
LMX9830-SW LMX9830 Application Notes, Software, and Tools LMX9838-SW LMX9838 Application Notes, Software, and Tools
Download options
Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Package Pins CAD symbols, footprints & 3D models
VQFN (RGZ) 48 Ultra Librarian

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