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Texas Instruments LMK02002ISQX/NOPB — Clock & Timing ICs

TI LMK02002ISQX/NOPB Clock Conditioner, PLL, 800MHz

MPNLMK02002ISQX/NOPB
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Texas Instruments LMK02002ISQX/NOPB Clock Conditioner, PLL Yes, Input LVCMOS/LVDS/LVPECL, Output LVPECL, 800MHz max, 48-WFQFN exposed pad, Tape & Reel.

$10.1400Ref. price · indicative, final on quote
Texas Instruments LMK02002ISQX/NOPB datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

LMK02002ISQX/NOPB specifications
ParameterValue
TypeClock Conditioner
MountingSurface Mount
Supply voltage3.15V ~ 3.45V
Frequency - max800MHz
Operating temperature-40°C~85°C
PLLYes
InputLVCMOS, LVDS, LVPECL
OutputLVPECL
PackageTape & Reel (TR)
Case48-WFQFN Exposed Pad
Divider (Multiplier)Yes/No
Number of circuits1
Ratio - Input:Output2:4
Differential - Input:OutputYes/Yes

Product details

PLL clock conditioner for jitter-sensitive links

The LMK02002ISQX/NOPB is a Texas Instruments Clock Conditioner with an integrated PLL, designed to clean jitter on clock signals feeding high-speed serial interfaces. The 800 MHz maximum output frequency covers 10G Ethernet, CPRI, and JESD204B reference clocks, where phase noise at the ADC/DAC sampling edge directly sets the SNR floor. It accepts LVCMOS, LVDS, or LVPECL inputs and outputs LVPECL, with differential signaling on both sides. The 2:4 input-to-output ratio lets a single clean reference fan out to four destinations — useful for clocking multiple converters or FPGAs from one conditioner.

Supply and thermal design constraints

Industrial temperature range (-40 °C to 85 °C) suits base-station and outdoor radio head deployment where the enclosure sees solar loading and no active cooling.

The base product number LMK02002 covers multiple package and tape options; this reel variant (Tape & Reel) is the standard pick-and-place format for volume assembly. Sourced through independent distribution channels; availability and current pricing confirmed against the BOM quantity at RFQ.

Frequently asked questions

What is LMK02002ISQX/NOPB's maximum output frequency and what does that mean for my design?

The maximum output frequency is 800 MHz. This ceiling covers the reference clock rates for 10G Ethernet (156.25 MHz), CPRI Option 7 (491.52 MHz), and JESD204B subclass 1 converters (up to 737.28 MHz). The PLL's loop bandwidth and VCO phase noise determine the actual jitter at the output — the 800 MHz figure is the toggle-rate limit of the LVPECL output stage, not the PLL's lock range.

What input signal standards does the LMK02002ISQX/NOPB accept?

The clock conditioner accepts LVCMOS, LVDS, and LVPECL inputs. All three are differential-capable, though LVCMOS is single-ended. The input mux selects one of two input pins (2:4 ratio), so a backup oscillator or redundant reference can be switched without rewiring.