SI5345C-A-GM

Product Overview

Category

SI5345C-A-GM belongs to the category of integrated circuits (ICs).

Use

The SI5345C-A-GM is commonly used in electronic devices for clock generation and distribution.

Characteristics

• High-performance clock generator
• Flexible frequency synthesis
• Low jitter output
• Wide operating frequency range
• Programmable features

Package

SI5345C-A-GM is available in a small form factor package, typically a 24-pin QFN (Quad Flat No-Lead) package.

Essence

The essence of SI5345C-A-GM lies in its ability to generate and distribute accurate clock signals, which are crucial for synchronizing various components within electronic systems.

Packaging/Quantity

SI5345C-A-GM is usually packaged in reels or trays, with a typical quantity of 250 units per reel/tray.

Specifications

• Input Voltage Range: 1.8V - 3.3V
• Output Frequency Range: 1Hz - 945MHz
• Output Jitter: <1 ps RMS (Root Mean Square)
• Operating Temperature Range: -40°C to +85°C
• Supply Current: 100 mA (typical)

Detailed Pin Configuration

The SI5345C-A-GM has a total of 24 pins. The pin configuration is as follows:

1. VDDA: Analog power supply
2. VDDD: Digital power supply
3. GND: Ground
4. XAXB0: Differential input clock
5. XAXB1: Differential input clock
6. XAXB2: Differential input clock
7. XAXB3: Differential input clock
8. XAXB4: Differential input clock
9. XAXB5: Differential input clock
10. XAXB6: Differential input clock
11. XAXB7: Differential input clock
12. XAXB8: Differential input clock
13. XAXB9: Differential input clock
14. XAXB10: Differential input clock
15. XAXB11: Differential input clock
16. XAXB12: Differential input clock
17. XAXB13: Differential input clock
18. XAXB14: Differential input clock
19. XAXB15: Differential input clock
20. CLKOUT0: Clock output
21. CLKOUT1: Clock output
22. CLKOUT2: Clock output
23. CLKOUT3: Clock output
24. GND: Ground

Functional Features

• Frequency synthesis with fractional-N PLL (Phase-Locked Loop)
• Multiple clock outputs with programmable frequencies
• Integrated voltage-controlled crystal oscillator (VCXO)
• Support for various clock formats (LVDS, LVPECL, HCSL, etc.)
• Programmable control interface (I2C or SPI)

Advantages and Disadvantages

Advantages

• High-performance clock generation with low jitter
• Flexible frequency synthesis for diverse applications
• Wide operating frequency range covers most common requirements
• Programmable features allow customization for specific needs

Disadvantages

• Relatively complex configuration and programming process
• Limited number of clock outputs compared to some other ICs in the same category
• Requires external components for proper operation (crystal oscillator, capacitors, etc.)

Working Principles

The SI5345C-A-GM utilizes a fractional-N PLL to generate precise clock signals. It takes an input reference clock and uses a feedback loop to synthesize an output clock with a desired frequency. The integrated VCXO helps maintain stability and accuracy. The programmable control interface allows users to configure the device according to their specific requirements.

Detailed Application Field Plans

The SI5345C-A-GM is widely used in various electronic systems that require accurate clock signals. Some common application fields include:

1. Telecommunications: Clock synchronization in network equipment, routers, and switches.
2. Data Centers: Timing solutions for servers, storage systems, and high-speed interconnects.
3. Broadcast and Video: Synchronization of audio/video equipment, cameras, and video processors.
4. Industrial Automation: Clock distribution in control systems, PLCs (Programmable Logic Controllers), and robotics.
5. Test and Measurement: Precise timing for oscilloscopes, signal generators, and data acquisition systems.

Detailed and Complete Alternative Models

• SI5344C-A-GM
• SI5346C-A-GM
• SI5347C-A-GM
• SI5348C-A-GM
• SI5349C-A-GM

These alternative models offer similar functionality with slight variations in specifications and pin configurations. Users can choose the most suitable model based on their specific requirements.

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