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Integrated Circuits (ICs)

LMKDB1204REXR

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Texas Instruments

2-INPUT 4-OUTPUT LP-HCSL CLOCK MUX FOR PCIE GEN 1 TO GEN 6

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Search across all available documentation for this part.

DocumentsLMKDB1xxx PCIe Gen 1 to Gen 6 Ultra Low Jitter 1:20, 1:8, 1:4, 1:2, 2:4, 2:2 LP-HCSL Clock Buffer and Clock MUX datasheet (Rev. D)RC19XXX, 9QXL2001X vs. LMKDB1XXX, CDCDB2000 Drop-In Replacement Guide.+2
Integrated Circuits (ICs)

LMKDB1204REXR

Active
Texas Instruments

2-INPUT 4-OUTPUT LP-HCSL CLOCK MUX FOR PCIE GEN 1 TO GEN 6

Deep-Dive with AI

DocumentsLMKDB1xxx PCIe Gen 1 to Gen 6 Ultra Low Jitter 1:20, 1:8, 1:4, 1:2, 2:4, 2:2 LP-HCSL Clock Buffer and Clock MUX datasheet (Rev. D)RC19XXX, 9QXL2001X vs. LMKDB1XXX, CDCDB2000 Drop-In Replacement Guide.+2

Technical Specifications

Parameters and characteristics for this part

SpecificationLMKDB1204REXR
Differential - Input:Output [custom]True
Differential - Input:Output [custom]True
Frequency - Max [Max]400 MHz
InputLP-HCSL
Main PurposePCI Express (PCIe)
Mounting TypeSurface Mount
Number of Circuits1
Operating Temperature [Max]105 °C
Operating Temperature [Min]-40 °C
OutputLP-HCSL
Package / Case28-QFN
PLLFalse
Ratio - Input:Output [custom]2:4
Supplier Device Package28-VQFN (4x4)
Voltage - Supply [Max]3.6 V, 1.89 V
Voltage - Supply [Min]1.71 V, 2.97 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
DigikeyTape & Reel (TR) 3000$ 2.17
Texas InstrumentsLARGE T&R 1$ 3.27
100$ 2.86
250$ 2.01
1000$ 1.62

Description

General part information

LMKDB1204 Series

The LMKDB devices are a family of extremely-low-jitter LP-HCSL buffers and MUX that support PCIe Gen 1 to Gen 6 and are DB2000QL compliant. The devices provide flexible power-up sequence, fail-safe inputs, individual output enable and disable pins, loss of input signal (LOS) detection and automatic output disable features, as well as excellent power supply noise rejection performance.

Both 1.8V and 3.3V supply voltages are supported. For LMKDB1120, 1.8V power supply saves 250mW power compared to 3.3V.

The LMKDB devices are a family of extremely-low-jitter LP-HCSL buffers and MUX that support PCIe Gen 1 to Gen 6 and are DB2000QL compliant. The devices provide flexible power-up sequence, fail-safe inputs, individual output enable and disable pins, loss of input signal (LOS) detection and automatic output disable features, as well as excellent power supply noise rejection performance.