SI5351A-B04849-GTR

Basic Information Overview

Category: Integrated Circuit (IC)
Use: Clock Generator and Multiplier
Characteristics:
- High-frequency accuracy
- Low phase noise
- Programmable output frequencies
- Small package size
Package: QFN-20
Essence: Clock generation and multiplication
Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications and Parameters

Supply Voltage: 2.8V to 3.63V
Output Frequency Range: 8kHz to 160MHz
I2C Interface: Standard-mode (100kHz) and Fast-mode (400kHz)
Temperature Range: -40°C to +85°C
Phase Noise: -140dBc/Hz at 10kHz offset (typical)

Detailed Pin Configuration

The SI5351A-B04849-GTR has the following pin configuration:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | VDD | Power supply voltage input | | 2 | GND | Ground | | 3 | SDA | I2C Serial Data Line | | 4 | SCL | I2C Serial Clock Line | | 5 | XAXB | Crystal oscillator input or reference clock input | | 6-13 | OUT0-OUT7 | Programmable clock outputs | | 14 | NC | No Connection | | 15 | VDDO | Power supply voltage for outputs | | 16 | GND | Ground | | 17 | XTAL | Crystal oscillator output | | 18 | CLKIN | Reference clock input | | 19 | VDD | Power supply voltage input | | 20 | GND | Ground |

Functional Characteristics

Flexible frequency synthesis and multiplication
Independent control of each output frequency
Programmable output drive strength
Spread Spectrum Clocking (SSC) support
Low jitter performance

Advantages and Disadvantages

Advantages: - High-frequency accuracy - Low phase noise - Programmable output frequencies - Small package size

Disadvantages: - Limited output frequency range (8kHz to 160MHz) - Requires an external crystal oscillator or reference clock

Applicable Range of Products

The SI5351A-B04849-GTR is suitable for various applications that require accurate clock generation and multiplication. It can be used in:

Communication systems
Test and measurement equipment
Audio and video equipment
Industrial automation
Embedded systems

Working Principles

The SI5351A-B04849-GTR utilizes a fractional-N PLL (Phase-Locked Loop) architecture to generate precise clock signals. It takes an external crystal oscillator or reference clock as input and uses programmable dividers and multipliers to synthesize the desired output frequencies.

Detailed Application Field Plans

Communication Systems: The SI5351A-B04849-GTR can be used to generate clock signals for data transmission, synchronization, and timing in wireless communication systems, such as cellular networks and Wi-Fi routers.
Test and Measurement Equipment: This IC is suitable for generating stable and accurate clock signals in oscilloscopes, spectrum analyzers, signal generators, and other test and measurement instruments.
Audio and Video Equipment: The SI5351A-B04849-GTR can provide precise clock signals for audio and video processing, ensuring high-quality playback and synchronization in devices like digital audio workstations, video recorders, and multimedia players.
Industrial Automation: Clock synchronization is crucial in industrial automation systems. This IC can generate precise clock signals for PLCs (Programmable Logic Controllers), motor control systems, and other automation equipment.
Embedded Systems: The SI5351A-B04849-GTR is widely used in embedded systems, including microcontrollers, IoT devices, and single-board computers. It enables accurate timing and synchronization for various applications.

Detailed Alternative Models

SI5351A-B-GT
SI5351B-B-GM
SI5351C-B-GM

5 Common Technical Questions and Answers

Q: What is the maximum output frequency of the SI5351A-B04849-GTR? A: The maximum output frequency is 160MHz.
Q: Can I use an external reference clock instead of a crystal oscillator? A: Yes, the SI5351A-B04849-GTR supports both crystal oscillator and reference clock inputs.
Q: Is the output drive strength programmable? A: Yes, each output has programmable drive strength settings.
Q: Does the SI5351A-B04849-GTR support Spread Spectrum Clock