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SI53321-B-GMR
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SI53321-B-GMR

Basic Information Overview

  • Category: Integrated Circuit (IC)
  • Use: Clock Generator and Multiplier
  • Characteristics:
    • High-performance clock synthesis and distribution
    • Low jitter and phase noise
    • Flexible frequency programming
    • Wide operating voltage range
  • Package: 24-pin QFN
  • Essence: Clock generation and distribution for various applications
  • Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications and Parameters

  • Input Voltage Range: 1.8V to 3.3V
  • Output Frequency Range: 1kHz to 710MHz
  • Number of Outputs: 12
  • Output Types: LVPECL, LVDS, HCSL, CMOS
  • Operating Temperature Range: -40°C to +85°C

Detailed and Complete Pin Configuration

  1. VDDO
  2. GND
  3. CLKIN
  4. XAXB
  5. XAXC
  6. XAXD
  7. XAXE
  8. XAXF
  9. XAXG
  10. XAXH
  11. XAXI
  12. XAXJ
  13. XAXK
  14. XAXL
  15. XAXM
  16. XAXN
  17. XAXP
  18. XAXR
  19. XAXS
  20. XAXT
  21. XAXU
  22. XAXV
  23. XAXW
  24. XAXX

Functional Characteristics

  • Clock multiplication and division
  • Programmable output frequencies
  • Spread Spectrum Clocking (SSC) support
  • Phase-locked loop (PLL) based architecture
  • Integrated crystal oscillator

Advantages and Disadvantages

Advantages: - High-performance clock synthesis - Low jitter and phase noise - Flexible frequency programming

Disadvantages: - Limited output types (LVPECL, LVDS, HCSL, CMOS) - Operating temperature range may not suit extreme environments

Applicable Range of Products

  • Telecommunications equipment
  • Networking devices
  • Data centers
  • Industrial automation systems
  • Consumer electronics

Working Principles

The SI53321-B-GMR utilizes a PLL-based architecture to generate and distribute high-quality clock signals. It takes an input clock signal (CLKIN) and uses a phase-locked loop to multiply or divide the frequency according to the programmed settings. The resulting clock signals are then distributed to the 12 output pins.

Detailed Application Field Plans

  1. Telecommunications Equipment: Provides precise clock synchronization for network switches and routers.
  2. Networking Devices: Enables accurate timing for data transmission and reception in Ethernet switches.
  3. Data Centers: Ensures synchronized clock signals for servers, storage systems, and network infrastructure.
  4. Industrial Automation Systems: Facilitates precise timing in PLCs, motion controllers, and industrial robots.
  5. Consumer Electronics: Supports clock generation for audio/video equipment, gaming consoles, and smart home devices.

Detailed Alternative Models

  1. SI5338A-B-GM: Similar clock generator with 8 outputs instead of 12.
  2. SI5341C-A-GM: Clock generator with integrated voltage-controlled crystal oscillator (VCXO).
  3. SI5368B-A-GM: Multi-channel clock generator with advanced jitter attenuation features.

5 Common Technical Questions and Answers

  1. Q: Can I use a different input voltage range? A: No, the SI53321-B-GMR is designed to operate within the specified voltage range only.

  2. Q: What is the maximum output frequency supported? A: The SI53321-B-GMR can generate clock signals up to 710MHz.

  3. Q: Can I program the output frequencies in real-time? A: Yes, the SI53321-B-GMR supports on-the-fly frequency programming.

  4. Q: Does this IC support spread spectrum clocking? A: Yes, the SI53321-B-GMR has built-in support for Spread Spectrum Clocking (SSC).

  5. Q: Is there a reference design available for this product? A: Yes, Silicon Labs provides reference designs and application notes for easy integration.

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