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SI5338A-B05494-GMR
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SI5338A-B05494-GMR

Basic Information Overview

  • Category: Integrated Circuit (IC)
  • Use: Clock Generator and Multiplier
  • Characteristics: High-performance, Low-jitter, Programmable
  • Package: 54-pin Quad Flat No-Lead (QFN)
  • Essence: Clock generation and distribution
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications and Parameters

  • Input Frequency Range: 1 MHz to 710 MHz
  • Output Frequency Range: 1 kHz to 945 MHz
  • Supply Voltage: 2.5 V to 3.3 V
  • Operating Temperature Range: -40°C to +85°C
  • Phase Noise: -150 dBc/Hz at 100 kHz offset
  • Programmable Features: Output frequency, output format, spread spectrum modulation, etc.

Detailed and Complete Pin Configuration

  1. VDDO: Output Power Supply
  2. VDDI: Input Power Supply
  3. GND: Ground
  4. XAXB: Differential Clock Inputs
  5. XAXT: Single-Ended Clock Input
  6. CLKOUTx: Clock Outputs
  7. SDA: I2C Serial Data Input
  8. SCL: I2C Serial Clock Input
  9. REFCLK: Reference Clock Input
  10. PLLVDD: PLL Power Supply

(Note: The complete pin configuration includes all 54 pins)

Functional Characteristics

  • Flexible clock generation and distribution
  • Low jitter and phase noise for high-performance applications
  • Programmable features allow customization for specific requirements
  • Support for multiple output formats (LVPECL, LVDS, HCSL, etc.)
  • Spread spectrum modulation for EMI reduction
  • Integrated voltage regulators for improved power supply noise rejection

Advantages and Disadvantages

Advantages: - High-performance clock generation and distribution - Programmable features for customization - Low jitter and phase noise - Support for multiple output formats

Disadvantages: - Requires external reference clock source - Limited frequency range compared to some other clock generators

Applicable Range of Products

  • Telecommunications equipment
  • Networking devices
  • Data centers
  • Industrial automation systems
  • Test and measurement instruments
  • Consumer electronics

Working Principles

The SI5338A-B05494-GMR is a clock generator IC that generates and distributes high-quality clock signals. It uses an external reference clock input and an internal PLL (Phase-Locked Loop) to generate precise and stable clock outputs. The programmable features allow users to customize the output frequency, format, and modulation options according to their specific requirements.

Detailed Application Field Plans

  1. Telecommunications Equipment: Use the SI5338A-B05494-GMR to generate clock signals for communication modules, base stations, and network switches.
  2. Networking Devices: Utilize the IC for clock synchronization in routers, switches, and network interface cards.
  3. Data Centers: Employ the IC to provide accurate clock signals for server racks, storage systems, and data processing units.
  4. Industrial Automation Systems: Use the IC for precise timing in PLCs (Programmable Logic Controllers), motor control systems, and robotics.
  5. Test and Measurement Instruments: Utilize the IC for generating clock signals in oscilloscopes, signal generators, and spectrum analyzers.
  6. Consumer Electronics: Incorporate the IC into audio/video equipment, gaming consoles, and smart home devices for accurate timing and synchronization.

Detailed Alternative Models

  • SI5338A-B05394-GMR: Similar specifications but with different pin configuration
  • SI5338B-B05494-GMR: Improved version with additional features and performance enhancements
  • SI5339A-B05494-GMR: Higher frequency range variant with similar characteristics

5 Common Technical Questions and Answers

  1. Q: Can the SI5338A-B05494-GMR generate multiple clock frequencies simultaneously? A: Yes, it can generate multiple clock frequencies on different output channels.

  2. Q: What is the maximum output frequency of the SI5338A-B05494-GMR? A: The maximum output frequency is 945 MHz.

  3. Q: Does the IC support spread spectrum modulation for EMI reduction? A: Yes, it supports spread spectrum modulation to reduce electromagnetic interference.

  4. Q: Can I program the output format of the clock signals? A: Yes, the IC allows programming of various output formats such as LVPECL, LVDS, and HCSL.

  5. Q: What is the typical phase noise performance of the SI5338A-B05494-GMR? A: The typical phase noise at a 100 kHz offset is -150 dBc/Hz.

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