CDCEL949PWR

Overview

CDCEL949PWR is a versatile programmable clock synthesizer integrated circuit (IC) that belongs to the category of timing devices. It is commonly used in various electronic systems to generate precise clock signals for synchronization and timing purposes. The CDCEL949PWR offers several characteristics that make it an ideal choice for applications requiring accurate clock generation.

Category

Timing Devices

Use

The CDCEL949PWR is primarily used to generate clock signals in electronic systems. It can be employed in a wide range of applications, including telecommunications, data centers, industrial automation, consumer electronics, and more.

Characteristics

• Programmable clock synthesis
• High accuracy and stability
• Wide frequency range
• Low phase noise
• Flexible output options
• Low power consumption

Package

The CDCEL949PWR is available in a small form factor package, which ensures easy integration into various circuit designs. It is offered in a lead-free and RoHS-compliant package, making it environmentally friendly.

Essence

The essence of CDCEL949PWR lies in its ability to provide precise clock signals with customizable frequencies and output options, catering to the specific requirements of different applications.

Packaging/Quantity

The CDCEL949PWR is typically packaged in tape and reel format, allowing for efficient handling during manufacturing processes. It is available in quantities suitable for both prototyping and large-scale production.

Specifications

• Input voltage range: 1.8V - 3.3V
• Output frequency range: 1MHz - 200MHz
• Number of outputs: 9
• Output types: LVCMOS, LVDS, LVPECL, HCSL
• Programmable features: frequency, phase, duty cycle
• Operating temperature range: -40°C to +85°C

Detailed Pin Configuration

The CDCEL949PWR features a compact pin configuration that facilitates easy integration into circuit designs. The following table provides a detailed overview of the pin assignments:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | VDD | Power supply voltage input | | 2 | GND | Ground reference | | 3 | XIN | Crystal oscillator input | | 4 | XOUT | Crystal oscillator output | | 5-13 | OUT0-OUT8 | Clock output pins | | 14 | SDA | Serial data input | | 15 | SCL | Serial clock input |

Functional Features

The CDCEL949PWR offers several functional features that enhance its usability and performance in clock synthesis applications:

• Frequency programmability: The IC allows users to program the desired output frequency, providing flexibility for different system requirements.
• Phase adjustment: Precise phase control enables synchronization with other components or systems.
• Duty cycle control: The duty cycle can be adjusted to meet specific timing needs.
• Spread spectrum modulation: The CDCEL949PWR supports spread spectrum modulation, reducing electromagnetic interference (EMI) in sensitive applications.

Advantages and Disadvantages

Advantages

• High accuracy and stability ensure reliable clock generation.
• Wide frequency range caters to diverse application needs.
• Programmable features offer flexibility and customization options.
• Low phase noise enhances signal integrity.
• Multiple output types accommodate various interface standards.

Disadvantages

• Requires external crystal oscillator for operation.
• Limited number of outputs may not suffice for complex systems with numerous clock signals.

Working Principles

The CDCEL949PWR operates based on a phase-locked loop (PLL) architecture. It takes an input clock signal and uses a feedback mechanism to generate an output clock signal with the desired frequency and characteristics. The PLL continuously adjusts its internal parameters to maintain synchronization and stability.

Detailed Application Field Plans

The CDCEL949PWR finds extensive application in various fields, including:

1. Telecommunications: Used in network switches, routers, and communication equipment for precise timing synchronization.
2. Data Centers: Enables accurate clock generation in servers, storage systems, and networking devices.
3. Industrial Automation: Provides synchronized timing signals for automation controllers, motor drives, and robotics.
4. Consumer Electronics: Used in audio/video equipment, gaming consoles, and smart home devices for timing and synchronization purposes.

Detailed and Complete Alternative Models

1. CDCEL950PWR: Similar to CDCEL949PWR with additional features such as integrated voltage-controlled oscillator (VCO) and higher output frequency range.
2. CDCEL951PWR: Offers similar functionality as CDCEL949PWR but with a different pin configuration and package option.

These alternative models provide similar clock synthesis capabilities while offering specific enhancements or variations to suit different application requirements.

In conclusion, the CDCEL949PWR is a versatile programmable clock synthesizer IC that offers high accuracy, flexibility, and stability. Its wide