SI5355A-B00055-GMR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Clock Generator and Jitter Attenuator
• Characteristics: High-frequency precision, low jitter, programmable output frequencies
• Package: 20-QFN (Quad Flat No-Lead) package
• Essence: Provides accurate clock signals for various applications
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Frequency Range: 8 kHz to 160 MHz
• Output Channels: 3 independent channels
• Output Types: Square wave, LVCMOS, or LVDS
• Supply Voltage: 2.5 V to 3.63 V
• Operating Temperature Range: -40°C to +85°C
• Phase Jitter: <1 ps RMS (Root Mean Square)
• Control Interface: I2C (Inter-Integrated Circuit) bus

Detailed Pin Configuration

The SI5355A-B00055-GMR IC has a 20-pin QFN package with the following pin configuration:

1. VDDA: Analog power supply
2. GND: Ground
3. XTALN: Crystal oscillator input (negative terminal)
4. XTALP: Crystal oscillator input (positive terminal)
5. CLKIN: External clock input
6. GND: Ground
7. VDD: Digital power supply
8. SDA: I2C data line
9. SCL: I2C clock line
10. GND: Ground
11. OUT0: Output channel 0
12. OUT1: Output channel 1
13. OUT2: Output channel 2
14. GND: Ground
15. NC: No connection
16. NC: No connection
17. GND: Ground
18. NC: No connection
19. NC: No connection
20. GND: Ground

Functional Features

• Programmable output frequencies with fine resolution
• Low phase noise and jitter for high-performance applications
• Flexible control interface for easy integration into various systems
• Output channels can be individually enabled or disabled
• Integrated loop filter for simplified clock generation

Advantages and Disadvantages

Advantages

• High-frequency precision ensures accurate timing in demanding applications.
• Low jitter minimizes signal distortion and improves overall system performance.
• Programmable output frequencies offer flexibility for different requirements.
• Compact package size allows for space-efficient designs.

Disadvantages

• Limited frequency range compared to some other clock generator ICs.
• Requires an external crystal oscillator or clock input for operation.

Working Principles

The SI5355A-B00055-GMR is based on a fractional-N PLL (Phase-Locked Loop) architecture. It utilizes a crystal oscillator or an external clock input as a reference to generate precise clock signals. The internal PLL circuitry divides the reference frequency and applies fractional-N techniques to achieve programmable output frequencies with fine resolution. The integrated loop filter helps maintain stability and reduce phase noise and jitter.

Detailed Application Field Plans

The SI5355A-B00055-GMR finds applications in various fields, including:

1. Telecommunications: Provides clock signals for network equipment, base stations, and communication systems.
2. Consumer Electronics: Used in audio/video devices, set-top boxes, and gaming consoles for synchronization and timing purposes.
3. Industrial Automation: Enables precise timing in industrial control systems, PLCs (Programmable Logic Controllers), and robotics.
4. Test and Measurement: Provides accurate clock references for oscilloscopes, spectrum analyzers, and other measurement instruments.
5. Medical Devices: Used in medical imaging equipment, patient monitoring systems, and diagnostic devices for synchronization.

Detailed and Complete Alternative Models

1. SI5351A-B-GM: Similar clock generator IC with a lower frequency range (8 kHz to 150 MHz).
2. Si5341B-B-GM: Clock generator and jitter attenuator with a wider frequency range (100 Hz to 200 MHz) and more output channels.
3. Si5338A-B-GM: Programmable clock generator with integrated voltage-controlled crystal oscillator (VCXO) for enhanced frequency stability.

These alternative models offer different features and specifications to cater to specific application requirements.

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