LMK04208NKDT Clock Timing & Frequency Management by Texas Instruments

CLOCK JITTER CLEANER 3.072GHZ WQFN-64

Status: Unknown
Series: -
RoHS: Unknown
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The LMK04208 is a high performance clock conditioner with superior clock jitter cleaning, generation, and distribution with advanced features to meet next generation system requirements. The dual loop PLLatinum™ architecture is capable of 111 fs, RMS jitter (12 kHz to 20 MHz) using a low-noise VCXO module or sub-200 fs rms jitter (12 kHz to 20 MHz) using a low cost external crystal and varactor diode. The dual loop architecture consists of two highperformance phase-locked loops (PLL), a low-noise crystal oscillator circuit, and a high-performance voltage controlled oscillator (VCO). The first PLL (PLL1) provides low-noise jitter cleaner functionality while the second PLL (PLL2) performs the clock generation. PLL1 can be configured to either work with an external VCXO module or the integrated crystal oscillator with an external tunable crystal and varactor diode. When paired with a very narrow loop bandwidth, PLL1 uses the superior close-in phase noise (offsets below 50 kHz) of the VCXO module or the tunable crystal to clean the input clock. The output of PLL1 is used as the clean input reference to PLL2 where it locks the integrated VCO. The loop bandwidth of PLL2 can be optimized to clean the farout phase noise (offsets above 50 kHz) where the integrated VCO outperforms the VCXO module or tunable crystal used in PLL1.

Where to Buy

Prices starting from US$6.85

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Farnell
from US$11.20
44
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Texas Instruments
from US$6.85
29,800
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element14
from US$10.57
44
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Specifications

Clock IC Type Jitter Cleaner
Frequency 3.072GHz
No. of Outputs 7Outputs
Supply Voltage Min 3.15V
Supply Voltage Max 3.45V
Clock IC Case Style WQFN
No. of Pins 64Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant Yes
MSL MSL 3 - 168 hours
SVHC No SVHC (27-Jun-2018)

Alternative Descriptions

Ultra low-noise clock jitter cleaner with 6 programmable outputs | Texas Instruments
CLOCK JITTER CLEANER, 3.072GHZ, WQFN-64 | element14


Frequently Asked Questions

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Additional datasheets, footprints and schematics for LMK04208NKDT are listed on our Part Details page. You can also find images and similar parts to LMK04208NKDT on this page.

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What category does LMK04208NKDT fall under?

The LMK04208NKDT is listed under Semiconductors - ICs > Clock Timing & Frequency Management > Clock Synthesizers & Generators.

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You can view similar parts to LMK04208NKDT when available in the Clock Synthesizers & Generators range under the specifications section at the bottom of the details page.

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Is the LMK04208NKDT RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Texas Instruments, element14 and Farnell have stock available or on a lead time for LMK04208NKDT.

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