CDCLVD2102

ACTIVE

Low jitter, dual 1:2 universal-to-LVDS buffer

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Product details

Parameters

Function Differential Additive RMS jitter (Typ) (fs) 171 Output frequency (Max) (MHz) 800 Number of outputs 4 Output supply voltage (V) 2.5 Core supply voltage (V) 2.5 Output skew (ps) 15 Features Dual 1:2 fanout, Universal inputs, Output enable control Operating temperature range (C) -40 to 85 Rating Catalog Output type LVDS Input type LVCMOS, LVDS, LVPECL open-in-new Find other Clock buffers

Package | Pins | Size

VQFN (RGT) 16 9 mm² 3 x 3 open-in-new Find other Clock buffers

Features

  • Dual 1:2 Differential Buffer
  • Low Additive Jitter <300 fs RMS in 10-kHz to 20-MHz
  • Low Within Bank Output Skew of 15 ps (Max)
  • Universal Inputs Accept LVDS, LVPECL, LVCMOS
  • One Input Dedicated for Two Outputs
  • Total of 4 LVDS Outputs, ANSI EIA/TIA-644A Standard Compatible
  • Clock Frequency up to 800 MHz
  • 2.375–2.625V Device Power Supply
  • LVDS Reference Voltage, VAC_REF, Available for Capacitive Coupled Inputs
  • Industrial Temperature Range –40°C to 85°C
  • Packaged in 3mm × 3mm 16-Pin QFN (RGT)
  • ESD Protection Exceeds 3 kV HBM, 1 kV CDM
  • APPLICATIONS
    • Telecommunications/Networking
    • Medical Imaging
    • Test and Measurement Equipment
    • Wireless Communications
    • General Purpose Clocking

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Description

The CDCLVD2102 clock buffer distributes two clock inputs (IN0, IN1) to a total of 4 pairs of differential LVDS clock outputs (OUT0, OUT3). Each buffer block consists of one input and 2 LVDS outputs. The inputs can either be LVDS, LVPECL, or LVCMOS.

The CDCLVD2102 is specifically designed for driving 50- transmission lines. If driving the inputs in single ended mode, the appropriate bias voltage (VAC_REF) should be applied to the unused negative input pin.

Using the control pin (EN), outputs can be either disabled or enabled. If the EN pin is left open two buffers with all outputs are enabled, if switched to a logical "0" both buffers with all outputs are disabled (static logical "0"), if switched to a logical "1", one buffer with two outputs is disabled and another buffer with two outputs is enabled. The part supports a fail safe function. It incorporates an input hysteresis, which prevents random oscillation of the outputs in absence of an input signal.

The device operates in 2.5V supply environment and is characterized from –40°C to 85°C (ambient temperature). The CDCLVD2102 is packaged in small 16-pin, 3-mm × 3-mm QFN package.

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Technical documentation

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Type Title Date
* Data sheet Dual 1:2 Low Additive Jitter LVDS Buffer datasheet (Rev. A) Jun. 15, 2010
User guide Low-Additive Jitter, Four LVDS Outputs Clock Buffer Evaluation Board Jun. 14, 2010

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARD Download
document-generic User guide
149
Description
The CDCLVD1204/CDCLVD2102 are high-performance, low-additive jitter clock buffers. They have two universal input buffers that support single-ended or differential clock inputs and are selectable through a control pin (for CDCLVD1204 only). The devices also feature on-chip bias generators that can (...)
Features
  • Easy-to-use evaluation board to fan out low-phase noise clocks
  • Easy device setup
  • Fast configuration
  • Control pins configurable through jumpers
  • Board powered at 2.5 V
  • Single-ended or differential input clocks
  • Device supports four LVDS outputs, EVM supports two LVDS outputs

Design tools & simulation

SIMULATION MODEL Download
SLLM093B.ZIP (14 KB) - IBIS Model
SIMULATION TOOL Download
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Features
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)
DESIGN TOOL Download
Clock tree architect programming software
CLOCK-TREE-ARCHITECT Clock tree architect is a clock tree synthesis tool that streamlines your design process by generating clock tree solutions based on your system requirements. The tool pulls data from an extensive database of clocking products to generate a system-level multi-chip clocking solution.
Features
  • Accepts customer specific design requirements such as input frequencies, output frequencies, clock formats and clock counts
  • Generates clock trees by taking into account a variety of advanced specifications, such as noise floor and phase determinism requirements
  • Presents clear and intuitive block (...)

CAD/CAE symbols

Package Pins Download
VQFN (RGT) 16 View options

Ordering & quality

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