Features 20 fs additive jitter Integrated Integer-N PLL with outstanding normalized phase noise contribution of -224 dBc/Hz Clock output frequency range of 1 to 800 MHz 3 LVDS and 5 LVPECL clock outputs Dedicated divider and delay blocks on each clock output Pin compatible family of clocking devices 3.15 to 3.45 V operation Package: 48 pin LLP (7.0 x 7.0 x 0.8 mm) Description The LMK02000 precision clock conditioner combines the functions of jitter cleaning/reconditioning, multiplication, and distribution of a reference clock. The device integrates a high performance Integer-N Phase Locked Loop (PLL), three LVDS, and five LVPECL clock output distribution blocks. Each clock distribution block includes a programmable divider, a phase synchronization circuit, a programmable delay, a clock output mux, and an LVDS or LVPECL output buffer. This allows multiple integer-related and phase-adjusted copies of the reference to be distributed to eight system components. The clock conditioner comes in a 48-pin LLP package and is footprint compatible with other clocking devices in the same family.

Also Recommended LMK01000 Distribution, Divide, And Delay Only LMK03200▲ 0-delay Outputs With PLL+VCO For Jitter Cleaning And Clock Generation Typical Application

Typical Application *click for larger image Typical Application	Block Diagram *click for larger image
Typical Performance *click for larger image Charge Pump Current Specification

Parameters / Values	LMK02000	LMK03200
Max Output Clock Freq	800 MHz	1296 MHz
Min VCO Freq	Undefined MHz	1185 MHz
Max VCO Freq	Undefined MHz	1296 MHz
PLL Type	PLL only	PLL + VCO
RMS Jitter	0.2 ps	0.8 ps
LVDS Outputs	3	3
LVPECL Outputs	5	5
LVCMOS Outputs	0	0
Power Consumption	1.125 Watt	1.1797 Watt
PowerWise Rating 6	28.125 mW x ps /ch	104.8622222 mW x ps /ch
Min Supply Voltage	3.15 Volt	3.15 Volt
Max Supply Voltage	3.45 Volt	3.45 Volt
Temperature Min	-40 deg C	-40 deg C
Temperature Max	85 deg C	85 deg C
PowerWise	Yes	No

Datasheets

Title		Size	Date	Other Language
	LMK02000 Precision Clock Distributor with Integrated PLL	453 Kbytes	4-Sep-07	日本語

Application Notes

Title		Size	Date	Other Language
	AN-1734: Application Note 1734 Using the LMK03000C to Clean Recovered Clocks	188 Kbytes	2-May-08	中文
	AN-1821: Application Note 1821 CPRI Repeater System	1497 Kbytes	15-May-08
	AN-1721: Application Note 1721 High Speed ADCs with Interfacing, Driving and Clocking Schemes	186 Kbytes	20-Sep-07	日本語 中文

Other Technical Documents

Title		Type	Date
	Using National's PowerWise Reference System for Energy-efficient Design	External Article	2008-05-14
	Generating Precision Clocks for Time- Interleaved ADCs	Signal Path Designer	2007-08-02
	Selecting Amplifiers, ADCs, and Clocks for High-Performance Signal Paths	Signal Path Designer	2007-09-13
	Clock Conditioner Owner's Manual	Design Guide	2006-11-10

Part Number(s) (NSID)	Top View	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LMK02000ISQ/NOPB RoHS Status	LLP	Full production Lead Time: 6 weeks	Distributor Region Qty ARROW Worldwide 188 AVNET-EM Worldwide 250 CEAC Asia Pacific 500 DIGI-KEY Worldwide 330 MOUSER Worldwide 244 RS COMPONENTS Worldwide 147 TAYLOR Americas 188	$10.00 each at 1K+ pcs	reel of 250
LMK02000ISQX/NOPB RoHS Status	LLP	Full production Lead Time: 6 weeks	Distributor Region Qty DIGI-KEY Worldwide 0	$10.00 each at 1K+ pcs	reel of 2500

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LMK02000.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LMK02000 is located at RoHS Status.

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LMK02000EVAL-1	LMK02000 Evaluation board with 245.76 VCXO	Full production	Distributor Region Qty DIGI-KEY Worldwide 0	$290.00 each	1
Description: The LMK02000 precision clock conditioner combines the functions of jitter cleaning/reconditioning, multiplication, and distribution of a reference clock. Features: 20 fs additive jitter Integrated Integer-N PLL with outstanding normalized phase noise contribution of -224 dBc/Hz Clock output frequency range of 1 to 800 MHz 3 LVDS and 5 LVPECL clock outputs Dedicated divider and delay blocks on each clock output Pin compatible family of clocking devices 3.15 to 3.45 V operation Package: 48 pin LLP (7.0 x 7.0 x 0.8 mm) LMK02000 Eval Board Instructions

Part Number(s) (NSID)	Description	Availability	Current Reported Stock	Budgetary Pricing	Pack Size
LMK02000EVAL-2	LMK02000 Evaluation board without VCXO	Full production	Distributor Region Qty	$260.00 each	1
Description: The LMK02000 precision clock conditioner combines the functions of jitter cleaning/reconditioning, multiplication, and distribution of a reference clock. Features: 20 fs additive jitter Integrated Integer-N PLL with outstanding normalized phase noise contribution of -224 dBc/Hz Clock output frequency range of 1 to 800 MHz 3 LVDS and 5 LVPECL clock outputs Dedicated divider and delay blocks on each clock output Pin compatible family of clocking devices 3.15 to 3.45 V operation Package: 48 pin LLP (7.0 x 7.0 x 0.8 mm) LMK02000-2 Eval Board Instructions

National Semiconductor follows the provisions of the Product Stewardship Guide for Customers (CSP-9-111C1) and Banned Substances and Materials of Interest Specification (CSP-9-111S2) for regulatory environmental compliance. Details may be found at: www.national.com/en/packaging/greennopb.html. Lead free products are RoHS compliant.

Lead Free product status is available through the search tool located here

Part Number(s) (NSID)	Weight (milligrams)	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
LMK02000ISQ/NOPB	123.191	LLP	48	3	260	Detail	Download	N/A	NS UZXYTTE# K02000 I
LMK02000ISQX/NOPB	123.191	LLP	48	3	260	Detail	Download	N/A	NS UZXYTTE# K02000 I

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LMK02000.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LMK02000 is located at RoHS Status.

Design Tools

Title	Size	Date
Design and Simulation Software & CodeLoader Programming Software
More design resources for the LMK clock conditoners

Reference Design

RD-147 - Low IF Receiver Reference Design Board

CAD Symbols and Models Download LMK02000 CAD Symbols

Models N/A

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LMK02000ISQ	BICMOS8B+	0	3632	0	0	2762292	2	783807897
LMK02000ISQX	BICMOS8B+	0	3632	0	0	2762292	2	783807897

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.

All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.

Moisture Sensitivity Level Data for LMK02000.

A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.

National's certificate of product compliance for LMK02000 is located at RoHS Status.

Software-Defined Radio (SDR) Webinar Click image to play video in new window Clock Design Tool - Getting Started Loading video... Clock Design Tool - Device Simulation Loading video... Clock Design Tool - Loop Filter Design Loading video...

Software-Defined Radio (SDR) Webinar Date: 2010-08-30 Length: 0:28:23 Clock Design Tool - Getting Started Date: 2010-03-22 Length: 0:11:48 Clock Design Tool - Device Simulation Date: 2010-03-22 Length: 0:08:52 Clock Design Tool - Loop Filter Design Date: 2010-03-22 Length: 0:05:31