8T49N240-991NLGI

Basic Information Overview

Category: Electronic Component
Use: Clock Generator and Jitter Attenuator
Characteristics: High precision, low jitter, programmable output frequencies
Package: QFN (Quad Flat No-leads)
Essence: Provides clock signals with precise timing and low jitter for various electronic devices
Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications and Parameters

Input Voltage Range: 1.8V to 3.3V
Output Frequency Range: 10MHz to 2.5GHz
RMS Phase Jitter: < 0.5 ps (typical)
Supply Current: 100 mA (typical)
Operating Temperature Range: -40°C to +85°C

Detailed and Complete Pin Configuration

VDDA: Analog Power Supply
VDDD: Digital Power Supply
GND: Ground
XIN: Crystal Oscillator Input
XOUT: Crystal Oscillator Output
CLK_OUT: Programmable Clock Output
SDA: I2C Serial Data Input/Output
SCL: I2C Serial Clock Input

Functional Characteristics

Clock Generation: Generates high-quality clock signals with programmable frequencies.
Jitter Attenuation: Reduces the phase noise and jitter of input clock signals.
I2C Interface: Allows configuration and control of the device through the I2C bus.
Crystal Oscillator Support: Provides support for external crystal oscillators.

Advantages and Disadvantages

Advantages: - High precision and low jitter output - Wide range of programmable frequencies - I2C interface for easy configuration - Supports external crystal oscillators

Disadvantages: - Relatively high power consumption - Limited operating temperature range

Applicable Range of Products

Communication equipment
Networking devices
Data storage systems
Test and measurement instruments
Industrial automation systems

Working Principles

The 8T49N240-991NLGI operates by taking an input clock signal and generating a high-quality output clock with programmable frequencies. It utilizes a combination of PLL (Phase-Locked Loop) and jitter attenuation techniques to ensure precise timing and low jitter. The device can be configured and controlled through the I2C interface, allowing for easy integration into various electronic systems.

Detailed Application Field Plans

Communication Equipment: Provides accurate clock signals for data transmission and synchronization in routers, switches, and modems.
Networking Devices: Ensures precise timing for network protocols and improves overall system performance.
Data Storage Systems: Synchronizes data read/write operations and reduces data transfer errors.
Test and Measurement Instruments: Enables precise time measurements and synchronization in oscilloscopes, spectrum analyzers, and signal generators.
Industrial Automation Systems: Facilitates precise timing in PLCs (Programmable Logic Controllers), motion control systems, and robotics.

Detailed Alternative Models

8T49N241-991NLGI: Similar to 8T49N240-991NLGI but with extended frequency range up to 4.0GHz.
8T49N242-991NLGI: Higher precision version with lower phase jitter specifications.
8T49N243-991NLGI: Lower power consumption variant suitable for battery-powered applications.

5 Common Technical Questions and Answers

Q: What is the maximum output frequency of the 8T49N240-991NLGI? A: The maximum output frequency is 2.5GHz.
Q: Can I use a 3.3V power supply for this device? A: Yes, the 8T49N240-991NLGI supports a power supply range of 1.8V to 3.3V.
Q: How can I configure the output frequency? A: The device can be programmed through the I2C interface using the provided control registers.
Q: What is the typical phase jitter of this clock generator? A: The typical RMS phase jitter is less than 0.5 ps.
Q: Can I use an external crystal oscillator with this device? A: Yes, the 8T49N240-991NLGI supports external crystal oscillators through the XIN and XOUT pins.

This encyclopedia entry provides detailed information about the 8T49N240-991NLGI clock generator and jitter attenuator. It covers its basic information, specifications, pin configuration, functional characteristics, advantages and disadvantages, applicable range of products, working principles, application field plans, alternative models, and common technical questions and answers.