SI5355A-B02995-GMR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Clock Generator and Jitter Attenuator
• Characteristics: High-performance, low-jitter, programmable clock generator
• Package: 20-QFN (Quad Flat No-Lead) package
• Essence: Provides multiple clock outputs with precise frequency control
• Packaging/Quantity: Available in tape and reel packaging, quantity per reel: 2500 units

Specifications

• Frequency Range: 8 kHz to 160 MHz
• Number of Outputs: 8
• Output Types: LVCMOS, LVDS, CMOS, or differential HCSL
• 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)
• Programmability: I2C interface for frequency programming and control

Detailed Pin Configuration

The SI5355A-B02995-GMR has a 20-pin QFN package with the following pin configuration:

1. VDDO - Output Power Supply
2. OUT0 - Clock Output 0
3. OUT1 - Clock Output 1
4. OUT2 - Clock Output 2
5. OUT3 - Clock Output 3
6. OUT4 - Clock Output 4
7. OUT5 - Clock Output 5
8. OUT6 - Clock Output 6
9. OUT7 - Clock Output 7
10. GND - Ground
11. XTALN - Crystal Input Negative Terminal
12. XTALP - Crystal Input Positive Terminal
13. SDA - I2C Serial Data Input
14. SCL - I2C Serial Clock Input
15. VDD - Power Supply
16. NC - No Connection
17. NC - No Connection
18. NC - No Connection
19. NC - No Connection
20. NC - No Connection

Functional Features

• High-frequency accuracy and stability
• Low phase noise and jitter for precise timing applications
• Programmable output frequencies with fine resolution
• Flexible output types to support various interface standards
• I2C interface for easy frequency programming and control
• Spread Spectrum Clocking (SSC) capability for EMI reduction

Advantages and Disadvantages

Advantages: - Wide frequency range suitable for diverse applications - Multiple clock outputs for system synchronization - Low phase jitter ensures accurate data transfer - Small package size saves board space - Easy integration with I2C interface

Disadvantages: - Limited number of output channels compared to some alternatives - Higher cost compared to basic clock oscillators

Working Principles

The SI5355A-B02995-GMR utilizes a fractional-N PLL (Phase-Locked Loop) architecture to generate precise clock signals. It takes an external crystal oscillator as the reference input and uses a programmable feedback divider to generate the desired output frequencies. The PLL's phase detector compares the feedback signal with the reference signal, adjusting the division ratio to maintain frequency accuracy.

Detailed Application Field Plans

The SI5355A-B02995-GMR is widely used in various applications that require accurate and synchronized clock signals. Some common application fields include:

1. Telecommunications: Clock synchronization in network equipment, routers, and switches.
2. Data Centers: Timing synchronization for servers, storage systems, and networking devices.
3. Industrial Automation: Precise timing for PLCs (Programmable Logic Controllers), motor control systems, and robotics.
4. Test and Measurement: Clock generation for oscilloscopes, signal generators, and data acquisition systems.
5. Audio/Video Equipment: Clock synchronization for digital audio workstations, video processors, and broadcast equipment.

Detailed and Complete Alternative Models

1. SI5338A-B-GM: Similar clock generator with 12 outputs and wider frequency range.
2. Si5341B-B-GM: High-performance clock generator with 4 differential outputs and ultra-low jitter.
3. Si570: Programmable oscillator with integrated PLL for precise frequency synthesis.

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

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