IDT, Integrated Device Technology Inc
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8T49N008A-038NLGI8
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8T49N008A-038NLGI8

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 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 2.1GHz
  • RMS Phase Jitter: < 0.5ps (typical)
  • Supply Current: 100mA (typical)
  • Operating Temperature Range: -40°C to +85°C

Detailed and Complete Pin Configuration

  1. VDDO: Output Power Supply
  2. GND: Ground
  3. VDD: Core Power Supply
  4. XIN: Crystal Oscillator Input
  5. XOUT: Crystal Oscillator Output
  6. CLK_OUT: Programmable Clock Output
  7. SDA: I2C Serial Data Input/Output
  8. SCL: I2C Serial Clock Input

Functional Characteristics

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

Advantages and Disadvantages

Advantages: - High precision and low jitter output - Wide range of programmable output frequencies - I2C interface for easy configuration - Crystal oscillator support for accurate timing

Disadvantages: - Relatively high supply current consumption - Limited operating temperature range

Applicable Range of Products

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

Working Principles

The 8T49N008A-038NLGI8 operates by taking an input clock signal and generating precise clock outputs with programmable frequencies. It utilizes a combination of PLL (Phase-Locked Loop) and jitter attenuation techniques to ensure low phase noise and jitter in the output signals. The device can be configured and controlled through the I2C interface, allowing for easy integration into various electronic systems.

Detailed Application Field Plans

  1. Communication Systems: Provides accurate clock signals for data transmission and synchronization in telecommunication networks.
  2. Networking Equipment: Ensures precise timing for network switches, routers, and other networking devices.
  3. Data Storage Devices: Enables reliable data reading and writing operations in hard drives, solid-state drives, and other storage systems.
  4. Industrial Automation: Synchronizes control signals in industrial automation systems, improving overall system performance.
  5. Test and Measurement Instruments: Offers precise timing references for oscilloscopes, spectrum analyzers, and other test equipment.

Detailed Alternative Models

  1. 8T49N004A-038NLGI8: Similar functionality with fewer output channels.
  2. 8T49N012A-038NLGI8: Higher frequency range and additional features like spread spectrum modulation.
  3. 8T49N006A-038NLGI8: Lower power consumption and reduced package size.

5 Common Technical Questions and Answers

  1. Q: What is the maximum output frequency of the 8T49N008A-038NLGI8? A: The maximum output frequency is 2.1GHz.

  2. Q: Can I use a 3.3V crystal oscillator with this device? A: Yes, the 8T49N008A-038NLGI8 supports crystal oscillators with an input voltage range of 1.8V to 3.3V.

  3. Q: How can I configure the output frequency of the device? A: The output frequency can be programmed through the I2C interface using the provided control registers.

  4. Q: What is the typical phase jitter of the device? A: The typical RMS phase jitter is less than 0.5ps.

  5. Q: Can I use this device in automotive applications? A: No, the operating temperature range of the 8T49N008A-038NLGI8 is limited to -40°C to +85°C, which may not be suitable for automotive environments.

This encyclopedia entry provides detailed information about the 8T49N008A-038NLGI8 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