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AD1881AJSTZ

产品分类: 编解码器
厂牌: ANALOG DEVICES
产品描述: 1 3V 5.25V QFP 贴片安装 7mm*7mm*1.4mm
供应商型号:
供应商:
标准整包数: 0
ANALOG DEVICES 编解码器 AD1881AJSTZ

AD1881AJSTZ概述

    # AD1881A AC’97 SoundMAX Codec Technical Overview
    Product Introduction
    The AD1881A is a highly integrated analog front-end codec designed to meet the Audio Codec '97 (AC'97) 2.0 and 2.1 Extensions standards. Developed by Analog Devices, this sound codec provides exceptional audio quality and advanced features for high-performance PC audio applications. Key applications include multimedia computing, gaming, and voice communication systems.
    The codec supports digital-to-analog (DAC) and analog-to-digital (ADC) converters, along with advanced features like digital audio mixing, multichannel support, and power management. Its core components include a high-quality analog mixer, dual channels of Sigma-Delta (Σ∆) conversion for both ADC and DAC, and support for Data Direct Scrambling (D2S) rate generation.
    Major Features:
    - Compliant with AC’97 2.1 Specifications
    - True line-level output and multiple analog input channels
    - Supports secondary codec modes
    - Integrated PHAT (Precision Hybrid Amplification Technology) for 3D stereo enhancement
    - Split power supplies (3.3V digital / 5V analog)
    Technical Parameters
    Below are key technical specifications extracted from the product datasheet:
    | Parameter | Minimum Value | Typical Value | Maximum Value | Units |

    | Analog Input Voltage (RMS)| 1 2.83 | Vrms |
    | Master Volume Range | -94.5 0 | dB |
    | Dynamic Range (ADC) | 87 dB |
    | Dynamic Range (DAC) | 90 dB |
    | Output Impedance | 500 Ω |
    | Clock Frequency Range | 24.576 MHz |
    | Power Consumption 280 mW |
    Additionally, the codec supports variable sample rates ranging from 8 kHz to 48 kHz with 1 Hz resolution. It has a low-power mobile mixer mode and offers up to 6-bit master volume control.
    Product Features and Advantages
    The AD1881A stands out with several unique advantages:
    - Enhanced Signal Quality: Greater than 90 dB SNR ensures high fidelity audio.
    - Advanced Power Management: Multiple power-saving modes reduce energy consumption.
    - 3D Sound Enhancement: Integrated PHAT technology provides superior stereo enhancement.
    - Flexible Configuration: Supports multi-rate operations and programmable gains.
    These features make the AD1881A ideal for modern PCs and embedded systems where both performance and efficiency are critical.
    Application Case Studies and Recommendations
    Use Cases:
    1. Multimedia Systems: The codec's multiple analog input channels make it suitable for capturing audio from various sources like CD, video, and aux devices.
    2. Voice Communication: Built-in support for phone lines and speakerphone modes enhances telecommunication applications.
    3. Game Audio: High dynamic range and 3D sound effects ensure immersive gaming experiences.
    Implementation Tips:
    - When designing systems that require extended runtime, consider enabling the low-power mixer mode.
    - For optimal audio performance, carefully match impedances between the codec and external components.
    Compatibility and Support
    The AD1881A is fully compatible with AC’97 specifications, ensuring interoperability with a wide range of digital audio controllers. Analog Devices provides comprehensive technical support, including software drivers and application notes, to assist developers.
    Common Issues and Solutions
    | Issue | Solution |

    | Poor Audio Quality | Verify clock stability and calibration settings

AD1881AJSTZ参数

参数
最小工作供电电压 3V
输入数量 -
输出数量 1
传播延迟时间 -
低电平输出电流 -
高电平输出电流 -
最大工作供电电压 5.25V
长*宽*高 7mm*7mm*1.4mm
通用封装 QFP
安装方式 贴片安装
应用等级 商用级
包装方式 托盘

AD1881AJSTZ厂商介绍

Analog Devices(简称ADI)是一家全球领先的半导体公司,专注于模拟、混合信号和数字信号处理(DSP)集成电路(IC)的设计、制造和营销。公司成立于1965年,总部位于美国马萨诸塞州的诺伍德。

ADI的主营产品主要分为以下几类:
1. 数据转换器:包括模数转换器(ADC)和数模转换器(DAC),广泛应用于通信、工业、医疗等领域。
2. 放大器和比较器:提供各种高性能放大器和比较器产品,用于信号放大、滤波和比较等。
3. 射频(RF)和微波产品:包括射频收发器、混频器、放大器等,应用于无线通信、**等领域。
4. 电源管理:提供电源转换、电源管理等解决方案,满足各种电源需求。
5. 接口和通信:包括以太网、串行通信等接口产品,用于数据传输和通信。
6. 处理器和DSP:提供高性能处理器和数字信号处理器,用于复杂信号处理和控制。

ADI的优势在于其在模拟和混合信号领域的深厚技术积累,以及对客户需求的深刻理解。公司不断推出创新产品,满足客户在各种应用场景下的需求,如5G通信、自动驾驶、工业自动化等。此外,ADI还提供全面的技术支持和定制化服务,帮助客户实现产品快速上市。

AD1881AJSTZ数据手册

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