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K03001

更新时间： 2024-11-05 03:46:35

品牌	Logo	应用领域
美国国家半导体 - NSC		调节器时钟
页数	文件大小	规格书
22页	419K
描述
Precision Clock Conditioner with Integrated VCO

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K03001 数据手册

ADVANCE INFORMATION

November 2006

LMK03000/LMK03000C/LMK03001/LMK03001C

Precision Clock Conditioner with Integrated VCO

General Description

Features

The LMK03000/LMK03000C/LMK03001/LMK03001C preci-

sion clock conditioners combine the functions of jitter clean-

ing/reconditioning, multiplication, and distribution of a refer-

ence clock. The devices integrate a Voltage Controlled

Oscillator (VCO), a high performance Integer-N Phase

Locked Loop (PLL), a partially integrated loop filter, three

LVDS, and five LVPECL clock output distribution blocks.

Integrated VCO and Integer-N PLL

■

Two performance grades (12 kHz to 20 MHz)

LMK03000/LMK03001: Less than 800 fs RMS

LMK03000C/LMK03001C: Less than 400 fs RMS

—

Two VCO frequency plans

■

LMK03000/LMK03000C: 1185 to 1296 MHz

LMK03001/LMK03001C: 1470 to 1570 MHz

—

The VCO output is optionally accessible on the Fout port. In-

ternally, the VCO output goes through an Input Divider to feed

the various clock distribution blocks.

Clock output frequency range of 1 to 785 MHz

3 LVDS and 5 LVPECL clock outputs

Partially integrated loop filter

■

Each clock distribution block includes a programmable di-

vider, 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 com-

ponents.

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)

The clock conditioners come in a 48-pin LLP package and are

footprint compatible with other clocking devices in the same

family.

Target Applications

Data Converter Clocking

■

SONET/SDH, DSLAM

Networking

Wireless Infrastructure

Medical

Test and Measurement

Military / Aerospace

Functional Block Diagram

20211401

202114

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