DS1087LU-21H

Product Overview

Category

The DS1087LU-21H belongs to the category of integrated circuits (ICs).

Use

This product is primarily used for clock generation and frequency synthesis in electronic devices.

Characteristics

• Clock generation accuracy: The DS1087LU-21H offers high precision in generating clock signals.
• Frequency synthesis capability: It can synthesize a wide range of frequencies suitable for various applications.
• Low power consumption: The IC is designed to operate efficiently with minimal power consumption.
• Compact package: The DS1087LU-21H comes in a small form factor, making it suitable for space-constrained designs.
• Robustness: This product is known for its reliability and durability.

Package

The DS1087LU-21H is available in a compact surface-mount package.

Essence

The essence of the DS1087LU-21H lies in its ability to generate accurate clock signals and synthesize frequencies required by electronic devices.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 1000 units per package.

Specifications

• Supply voltage: 3.3V
• Operating temperature range: -40°C to +85°C
• Output frequency range: 1Hz to 100MHz
• Output type: Square wave
• Frequency resolution: 1Hz
• Package dimensions: 8-pin SOIC

Detailed Pin Configuration

Pin Name | Description --- | --- VDD | Power supply input GND | Ground X1, X2 | Crystal oscillator input OUT | Clock output SEL0, SEL1 | Frequency selection inputs PD | Power-down control input

Functional Features

• Clock generation: The DS1087LU-21H can generate precise clock signals based on the input frequency selection.
• Frequency synthesis: It can synthesize a wide range of frequencies by selecting appropriate input settings.
• Power-down mode: The IC offers a power-down control input to conserve energy when not in use.

Advantages and Disadvantages

Advantages

• High accuracy in clock generation
• Wide frequency synthesis capability
• Low power consumption
• Compact form factor
• Reliable and durable

Disadvantages

• Limited output frequency range (1Hz to 100MHz)
• Requires an external crystal oscillator for operation

Working Principles

The DS1087LU-21H utilizes an internal phase-locked loop (PLL) to generate clock signals. It takes the input frequency selection and uses it as a reference to generate the desired output frequency. The PLL ensures accurate frequency synthesis by comparing the input signal with a voltage-controlled oscillator (VCO) output.

Detailed Application Field Plans

The DS1087LU-21H finds applications in various electronic devices that require precise clock signals and frequency synthesis. Some common application fields include:

1. Communication systems: Used in routers, switches, and network equipment for synchronization purposes.
2. Consumer electronics: Integrated into televisions, audio systems, and digital cameras for timing and synchronization functions.
3. Industrial automation: Employed in programmable logic controllers (PLCs), motor drives, and industrial control systems.
4. Medical devices: Utilized in medical imaging equipment, patient monitoring systems, and diagnostic instruments.
5. Automotive electronics: Integrated into automotive infotainment systems, navigation units, and engine control modules.

Detailed and Complete Alternative Models

1. DS1087LU-21G: Similar to DS1087LU-21H but operates at a different supply voltage.
2. DS1087LU-22H: Offers additional features such as frequency modulation capability.
3. DS1087LU-23H: Provides extended output frequency range up to 1GHz.

These alternative models offer similar functionalities with slight variations to cater to specific requirements.

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