SI5351C-B-GMR

Product Overview

Category

The SI5351C-B-GMR belongs to the category of integrated circuits (ICs) used for clock generation and distribution.

Use

This IC is primarily used in electronic devices that require accurate and stable clock signals. It provides a flexible solution for generating multiple clock frequencies with low jitter.

Characteristics

• High frequency accuracy and stability
• Low phase noise and jitter
• Programmable output frequencies
• Multiple independent clock outputs
• Wide operating voltage range

Package

The SI5351C-B-GMR is available in a compact surface-mount package, making it suitable for space-constrained applications.

Essence

The essence of the SI5351C-B-GMR lies in its ability to generate precise clock signals, enabling synchronization and timing control in various electronic systems.

Packaging/Quantity

This IC is typically supplied in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Frequency range: 8 kHz to 160 MHz
• Output channels: Up to 8 independent clock outputs
• Supply voltage: 2.5 V to 3.63 V
• Operating temperature range: -40°C to +85°C
• Phase noise: -150 dBc/Hz at 10 kHz offset (typical)
• Jitter: <1 ps RMS (root mean square)

Detailed Pin Configuration

The SI5351C-B-GMR features a 20-pin QFN (Quad Flat No-leads) package. The pin configuration is as follows:

1. VDD
2. GND
3. XTAL1
4. XTAL2
5. SDA
6. SCL
7. CLK0
8. CLK1
9. CLK2
10. CLK3
11. CLK4
12. CLK5
13. CLK6
14. CLK7
15. VDD
16. GND
17. NC
18. NC
19. NC
20. NC

Functional Features

• Flexible frequency synthesis: The SI5351C-B-GMR allows the generation of multiple clock frequencies with different dividers and multipliers.
• Independent output channels: Each clock output can be programmed independently, enabling precise timing control for various components in a system.
• I2C interface: The IC utilizes an I2C interface for easy configuration and control.

Advantages and Disadvantages

Advantages

• High accuracy and stability in clock generation
• Low phase noise and jitter
• Compact package suitable for space-constrained applications
• Wide operating voltage range allows compatibility with various systems

Disadvantages

• Limited maximum output frequency (160 MHz)
• Requires external crystal oscillator for accurate frequency generation

Working Principles

The SI5351C-B-GMR utilizes a fractional-N PLL (Phase-Locked Loop) architecture to generate precise clock signals. It employs a feedback mechanism to adjust the output frequency based on the reference input and user-defined settings. The PLL ensures accurate frequency synthesis by comparing the divided output signal with the desired frequency.

Detailed Application Field Plans

The SI5351C-B-GMR finds application in various electronic systems that require accurate timing and synchronization. Some potential fields of application include:

1. Communication systems: Used for clock generation in wireless transceivers, base stations, and network switches.
2. Test and measurement equipment: Provides stable clock signals for oscilloscopes, spectrum analyzers, and signal generators.
3. Industrial automation: Enables precise timing control in programmable logic controllers (PLCs), motor drives, and robotics.
4. Audio/video equipment: Used for clock synchronization in digital audio interfaces, video processors, and multimedia devices.

Detailed and Complete Alternative Models

1. SI5351A-B-GMR: Similar to the SI5351C-B-GMR, but with a lower maximum output frequency of 125 MHz.
2. Si5341B-B-GM: Offers higher performance and more advanced features, including jitter attenuation and clock distribution capabilities.

These alternative models provide options for different application requirements and system specifications.

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