IDT, Integrated Device Technology Inc
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8T49N241-004NLGI
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8T49N241-004NLGI

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: 1MHz to 2.5GHz
  • RMS Phase Jitter: < 0.5 ps (typical)
  • Supply Current: 100 mA (typical)

Detailed and Complete Pin Configuration

  1. VDDO: Output Power Supply
  2. VDDI: Input Power Supply
  3. GND: Ground
  4. XIN: Crystal Oscillator Input
  5. XOUT: Crystal Oscillator Output
  6. CLK_OUT: Clock Output
  7. SDA: I2C Serial Data
  8. SCL: I2C Serial Clock
  9. OE#: Output Enable
  10. NC: No Connection

Functional Characteristics

  • Generates high-quality clock signals with low phase noise and jitter
  • Supports multiple output frequencies through programmable dividers
  • Provides spread spectrum modulation for EMI reduction
  • Offers I2C interface for easy configuration and control
  • Features integrated crystal oscillator for simplified design

Advantages and Disadvantages

Advantages: - High precision and low jitter performance - Flexible output frequency options - Easy integration with I2C interface - Reduced EMI through spread spectrum modulation

Disadvantages: - Relatively high power consumption - Limited input voltage range

Applicable Range of Products

  • Communication systems
  • Networking equipment
  • Data storage devices
  • Consumer electronics
  • Industrial automation

Working Principles

The 8T49N241-004NLGI operates by taking an input clock signal and using a phase-locked loop (PLL) to generate precise output clock signals with programmable frequencies. The PLL compares the input clock to a reference frequency and adjusts its internal oscillator accordingly to maintain synchronization. The device also incorporates spread spectrum modulation techniques to reduce electromagnetic interference.

Detailed Application Field Plans

  1. Communication Systems: Provides accurate clock signals for data transmission and reception in telecommunication networks.
  2. Networking Equipment: Ensures synchronized timing for routers, switches, and other network devices, improving data transfer efficiency.
  3. Data Storage Devices: Enables precise timing for read and write operations in hard drives, solid-state drives, and RAID systems.
  4. Consumer Electronics: Supports clock synchronization in audio/video equipment, gaming consoles, and smart home devices.
  5. Industrial Automation: Facilitates precise timing in control systems, PLCs, and robotics, enhancing overall system performance.

Detailed Alternative Models

  • 8T49N240-003NLGI
  • 8T49N242-005NLGI
  • 8T49N243-006NLGI
  • 8T49N244-007NLGI
  • 8T49N245-008NLGI

5 Common Technical Questions and Answers

  1. Q: What is the maximum output frequency of 8T49N241-004NLGI? A: The maximum output frequency is 2.5GHz.

  2. Q: Can I program the output frequency using an external microcontroller? A: Yes, the device supports programming through the I2C interface, allowing external control.

  3. Q: Does the 8T49N241-004NLGI support spread spectrum modulation? A: Yes, it offers spread spectrum modulation for reducing electromagnetic interference.

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

  5. Q: Can I use this clock generator with a 3.3V power supply? A: Yes, the input voltage range supports 1.8V to 3.3V, making it compatible with a 3.3V power supply.

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