SI5345D-B-GMR

Basic Information Overview

Category: Integrated Circuit (IC)
Use: Clock Generator and Jitter Attenuator
Characteristics: High-performance, low-jitter clock generation and distribution
Package: 24-pin QFN (Quad Flat No-Lead)
Essence: Provides precise timing signals for various electronic systems
Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications and Parameters

Frequency Range: 1 Hz to 945 MHz
Output Format: LVDS, LVPECL, HCSL, CML, CMOS
Supply Voltage: 2.5 V to 3.3 V
Operating Temperature Range: -40°C to +85°C
Phase Noise Performance: < -230 dBc/Hz at 100 kHz offset

Detailed Pin Configuration

XAXB: Crystal Input
XAXT: Crystal Input
GND: Ground
VDDO: Output Power Supply
VDD: Core Power Supply
SDA: I2C Serial Data
SCL: I2C Serial Clock
GND: Ground
OUT0_N: Differential Output 0 Negative
OUT0_P: Differential Output 0 Positive
OUT1_N: Differential Output 1 Negative
OUT1_P: Differential Output 1 Positive
OUT2_N: Differential Output 2 Negative
OUT2_P: Differential Output 2 Positive
OUT3_N: Differential Output 3 Negative
OUT3_P: Differential Output 3 Positive
OUT4_N: Differential Output 4 Negative
OUT4_P: Differential Output 4 Positive
GND: Ground
VDDO: Output Power Supply
VDD: Core Power Supply
GND: Ground
NC: No Connection
NC: No Connection

Functional Characteristics

Flexible clock synthesis and distribution
Low phase noise and jitter performance
Programmable output formats and frequencies
Integrated voltage regulators for improved power supply noise rejection
I2C interface for easy configuration and control

Advantages and Disadvantages

Advantages: - High-performance clock generation and distribution - Wide frequency range and output format compatibility - Precise timing signals for various electronic systems

Disadvantages: - Relatively complex pin configuration - Requires external crystal or clock source

Applicable Range of Products

Telecommunications equipment
Data centers and servers
Industrial automation systems
Test and measurement instruments
Consumer electronics devices

Working Principles

The SI5345D-B-GMR is a clock generator and jitter attenuator IC that generates precise timing signals for electronic systems. It uses an external crystal or clock source as the reference input and synthesizes multiple output clocks with low phase noise and jitter. The device provides flexible configuration options through an I2C interface, allowing users to program the output frequencies and formats according to their specific requirements.

Detailed Application Field Plans

Telecommunications Equipment: The SI5345D-B-GMR can be used in base stations, routers, and switches to provide accurate clock signals for data transmission and synchronization.
Data Centers and Servers: This IC ensures reliable timing for server clusters, storage systems, and network infrastructure, improving overall system performance.
Industrial Automation Systems: Precise timing is crucial in industrial control systems, and the SI5345D-B-GMR can be employed to synchronize PLCs, motor drives, and sensors.
Test and Measurement Instruments: The IC's low jitter characteristics make it suitable for high-precision test equipment such as oscilloscopes, spectrum analyzers, and signal generators.
Consumer Electronics Devices: The SI5345D-B-GMR can be utilized in audio/video equipment, gaming consoles, and smart TVs to ensure accurate synchronization of multimedia data.

Detailed Alternative Models

SI5344D-B-GMR: Similar to SI5345D-B-GMR but with fewer output channels.
SI5346D-B-GMR: Similar to SI5345D-B-GMR but with additional features like frequency margining and spread spectrum modulation.

5 Common Technical Questions and Answers

Q: Can the SI5345D-B-GMR operate without an external crystal? A: No, it requires an external crystal or clock source as the reference input.
Q: What is the maximum output frequency of the SI5345D-B-GMR? A: The maximum output frequency is 945 MHz.
Q: How many differential outputs does the SI5345D-B-GMR have? A: It has five differential outputs.
Q: What is