National Semiconductor LMK02000 Precision Clock Conditioner Datasheet

The LMK02000 precision clock conditioner combines the functions of jitter cleaning/reconditioning, multiplication, and distribution of a reference clock. It features 20 fs additive jitter, an integrated Integer-N PLL, a clock output frequency range of 1 to 800 MHz, 3 LVDS and 5 LVPECL clock outputs, dedicated divider and delay blocks, and a pin compatible family of clocking devices.


National Semiconductor LMK02000 Precision Clock Conditioner Datasheet - cover page
Brand
National Semiconductor
Category
Other Electronics
Document type
Datasheet
Language
English
Pages
20
File format
PDF
File size
454 KB
Published
10 April, 2012
Updated
30 September, 2023
MD5 checksum
8F545AD1ED6A1A15DAAB5597AD0A4DFE

About this manual

The LMK02000 precision clock conditioner combines jitter cleaning, multiplication, and distribution of a reference clock. It integrates an Integer‑N PLL, three LVDS and five LVPECL clock output blocks, each with programmable divider, phase sync, delay, and output mux.

The device is supplied in a 48‑pin lead‑less package (7.0 × 7.0 × 0.8 mm) and is targeted for data‑converter clocking, networking, wireless infrastructure, medical, test & measurement, and aerospace applications. Detailed pin descriptions, electrical characteristics, and timing diagrams are provided for system integration.

What's inside

  • General Description
  • Features
  • Target Applications
  • Pin Descriptions
  • Absolute Maximum Ratings
  • Recommended Operating Conditions
  • Electrical Characteristics
  • Clock Distribution Section
  • Digital LVTTL Interfaces
  • Digital MICROWIRE Interfaces

Specifications

Additive jitter20 fs
Phase noise contribution-224 dBc/Hz
Clock output frequency range1 to 800 MHz
LVDS outputs3
LVPECL outputs5
Supply voltage (typical)3.15 V to 3.45 V
Package48‑pin LLP (7.0 × 7.0 × 0.8 mm)
Storage temperature range-65 °C to 150 °C
Ambient temperature (recommended)-40 °C to 85 °C

Frequently asked questions

What is the clock output frequency range of the LMK02000?

The LMK02000 can output clocks from 1 MHz up to 800 MHz.

How many LVDS and LVPECL outputs does the LMK02000 provide?

It provides three LVDS outputs and five LVPECL outputs.

What supply voltage does the LMK02000 require?

Typical operation uses a supply voltage between 3.15 V and 3.45 V.

In what package is the LMK02000 delivered?

The device is supplied in a 48‑pin lead‑less package (7.0 × 7.0 × 0.8 mm).

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