SI5355A-B00056-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 multiple clock signals with precise frequency control
• 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: 2.5V to 3.63V
• 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-B00056-GMR has a 20-pin QFN package with the following pin configuration:

1. VDDA: Analog power supply
2. GND: Ground
3. XAXB: Crystal oscillator input
4. XAXT: Crystal oscillator input
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. NC: No connection
18. GND: Ground
19. NC: No connection
20. NC: No connection

Functional Features

• Programmable output frequencies with fine resolution
• Low phase noise and jitter for high-performance applications
• Integrated voltage-controlled crystal oscillator (VCXO)
• Flexible control interface through I2C bus
• Output channels can be individually enabled or disabled
• Spread Spectrum Clocking (SSC) capability for EMI reduction

Advantages and Disadvantages

Advantages

• High-frequency precision and stability
• Low phase noise and jitter for accurate timing requirements
• Versatile output types for compatibility with different systems
• Easy integration into existing designs with I2C control interface
• SSC capability for reducing electromagnetic interference

Disadvantages

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

Working Principles

The SI5355A-B00056-GMR utilizes a fractional-N PLL (Phase-Locked Loop) architecture to generate precise clock signals. It incorporates an integrated VCXO that can be programmed to provide the desired output frequencies. The PLL compares the feedback signal from the VCXO with a reference frequency and adjusts the division ratio to achieve the desired output frequency. The I2C interface allows users to configure the device and select the output frequencies.

Detailed Application Field Plans

The SI5355A-B00056-GMR is widely used in various applications that require multiple clock signals with precise frequency control. Some of the common application fields include:

1. Telecommunications: Used in base stations, routers, and switches for synchronization and timing purposes.
2. Data Centers: Provides clock signals for servers, storage systems, and networking equipment.
3. Test and Measurement Equipment: Used as a clock source for oscilloscopes, signal generators, and spectrum analyzers.
4. Industrial Automation: Provides timing signals for PLCs (Programmable Logic Controllers), motor control systems, and robotics.
5. Audio/Video Equipment: Used in audio interfaces, video processors, and broadcast equipment for synchronization.

Detailed and Complete Alternative Models

1. SI5341A-C-GM: Similar clock generator IC with 4 output channels and wider frequency range.
2. SiT8208AC-23-33S-50.000000: MEMS-based oscillator with low phase noise and high stability.
3. MAX038CPP: Function generator IC capable of generating various waveforms with programmable frequencies.

These alternative models offer different features and specifications, allowing users to choose the most suitable option based on their specific requirements.

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