SI5355A-B02235-GMR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Clock Generator and Jitter Attenuator
• Characteristics: High-performance, low-jitter clock generation; flexible frequency synthesis; multiple outputs; programmable features
• Package: 20-QFN (Quad Flat No-Lead) package
• Essence: The SI5355A-B02235-GMR is a highly versatile clock generator IC that provides precise clock signals for various applications.
• Packaging/Quantity: Available in tape and reel packaging with 2500 units per reel.

Specifications

• Frequency Range: 8 kHz to 160 MHz
• Number of Outputs: 3
• Output Types: LVCMOS, LVDS, or LVPECL
• 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)
• Programming Interface: I2C (Inter-Integrated Circuit)

Detailed Pin Configuration

The SI5355A-B02235-GMR has a 20-pin QFN package with the following pin configuration:

1. VDDA: Analog power supply
2. VDDD: Digital power supply
3. GND: Ground
4. XAXB: Crystal oscillator input
5. XAXT: Crystal oscillator input
6. CLK0: Output clock 0
7. CLK1: Output clock 1
8. CLK2: Output clock 2
9. SDA: I2C data line
10. SCL: I2C clock line
11. NC: No connection
12. NC: No connection
13. NC: No connection
14. NC: No connection
15. NC: No connection
16. NC: No connection
17. NC: No connection
18. NC: No connection
19. NC: No connection
20. NC: No connection

Functional Features

• Flexible frequency synthesis with fractional and integer dividers
• Low phase noise and jitter for high-performance applications
• Programmable output formats (LVCMOS, LVDS, or LVPECL)
• Integrated voltage-controlled crystal oscillator (VCXO)
• Spread spectrum modulation for EMI reduction
• I2C interface for easy configuration and control

Advantages and Disadvantages

Advantages: - Wide frequency range suitable for various applications - High precision and low jitter clock generation - Multiple output options for compatibility with different systems - Easy programmability and control through the I2C interface - Integrated VCXO eliminates the need for an external oscillator

Disadvantages: - Limited number of outputs (3) compared to some other clock generator ICs - Relatively higher power consumption compared to simpler clock oscillators

Working Principles

The SI5355A-B02235-GMR utilizes a combination of fractional and integer dividers to generate precise clock signals. It incorporates a voltage-controlled crystal oscillator (VCXO) that provides a stable reference frequency. The internal PLL (Phase-Locked Loop) synthesizes the desired output frequencies by dividing the VCXO frequency using fractional and integer dividers. The programmable features allow users to configure the output formats and modulation schemes according to their specific requirements.

Detailed Application Field Plans

The SI5355A-B02235-GMR finds applications in various fields, including:

1. Telecommunications: Clock synchronization in network equipment, base stations, and routers.
2. Consumer Electronics: Clock generation for audio/video devices, set-top boxes, and gaming consoles.
3. Industrial Automation: Timing and synchronization in PLCs (Programmable Logic Controllers), motor control systems, and robotics.
4. Test and Measurement: Clock signals for oscilloscopes, signal generators, and data acquisition systems.
5. Medical Devices: Precision timing for medical imaging equipment, patient monitoring systems, and diagnostic instruments.

Detailed and Complete Alternative Models

1. SI5351A-B-GM: Similar clock generator IC with a lower frequency range (8 kHz to 150 MHz) and two outputs.
2. Si5341B-B-GM: Clock generator and jitter attenuator with a wider frequency range (100 Hz to 200 MHz) and four outputs.
3. Si5338A-B-GM: High-performance clock generator with eight outputs and advanced features like phase alignment and skew control.

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

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