概览
优势和特点
- Simple Plug-and-Play Design
- Wide Amplifier Supply Range (3V to 14V)
- 13.8W Output Power into 8Ω at 14V
- 17.6W Output Power into 6Ω at 14V
- 30mW Quiescent Power
- 1ms Turn-On Time (for MAX98365A and MAX98365B)
- 92.7% Efficiency (7.0W into RL = 8Ω, PVDD = 12V)
- 22µVRMS Output Noise
- 111.5dB Dynamic Range
- -85dB THD+N at 1kHz
- No MCLK Required
- Sample Rates of 8kHz to 192kHz
- Supports Left, Right, or (Left/2 + Right/2) Output in I2S and Left-Justified Modes
- Sophisticated Edge Rate Control Enables Filterless Class-D Outputs
- Low 0.5µA Shutdown Current
- Low RF Susceptibility Rejects TDMA Noise from GSM Radios
- Class-D Switching Frequency Trimmed to 6% for Better EMI Planning
- Extensive Click-and-Pop Reduction Circuitry
- Robust Short-Circuit and Thermal Protection
- Available in Space-Saving Package: 12 Bump, WLP (1.21mm x 1.78mm, 0.4mm Pitch)
产品详情
The MAX98365 is an easy-to-use, low-cost, digital input Class-D amplifier that provides industry-leading, Class-AB audio performance with Class-D efficiency. The digital audio interface automatically recognizes different PCM and TDM clocking schemes which eliminates the need for I2C programming: Simply supply power, LRCLK, BCLK, and digital audio to generate sound. Furthermore, a novel pinout allows customers to use the cost-effective wafer-level package (WLP) with no need for expensive in-pad vias. A wide 3V to 14V supply range allows the device to deliver 13.8W into an 8Ω load.
The digital audio interface is highly flexible. The devices support I2S, left-justified, and 8-channel time division multiplexed (TDM) data formats. The digital audio interface accepts 8kHz, 16kHz, 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, and 192kHz sample rates. Data words can be 16-bit, 24-bit, or 32-bit in I2S and left-justified modes and 16-bit or 32-bit in TDM mode.
Digital audio interface input thresholds are ideal for interfacing to 1.2V and 1.8V logic. The devices can tolerate logic input voltages up to 5.5V.
The MAX98365A and MAX98365B have fast 1ms turn-on times while the MAX98365C and MAX98365D ramp the volume over 13ms during turn-on and turn-off.
The devices eliminate the need for the external MCLK signal that is typically used for PCM communication. This reduces EMI and possible board coupling issues in addition to reducing the size and pin count. The devices also feature a very high wideband jitter tolerance (12ns, typ) on BCLK and LRCLK to provide robust operation.
Active emissions-limiting, edge-rate limiting, and overshoot control circuitry greatly reduce EMI. A filterless spread-spectrum modulation scheme eliminates the need for output filtering found in traditional Class-D devices and reduces the component count of the solution.
The devices are specified over the -40°C to +85°C temperature range.
Applications
- Smart Speakers
- Notebook Computers
- IoT Devices
- Gaming Devices (Audio and Haptics)
- Smartphones
- Tablets
- Cameras
产品生命周期
推荐新设计使用
本产品已上市。数据手册包含所有最终性能规格和工作条件。ADI公司推荐新设计使用这些产品。
评估套件 (4)
参考资料
参考电路 (1)
设计资源
ADI始终把满足您可靠性水平的产品放在首要位置。我们通过在所有产品、工艺设计和制造过程中引入高质量和可靠性检查实践这一承诺。发运的产品实现“零缺陷”始终是我们的目标。
样片申请及购买
订购常见问题解答
有关在线订单、付款选项等问题的答案，请参阅我们的订购常见问题解答。
立即购买报价
(**)显示的立即购买报价和报价范围基于少量订单。
报价单
(*)所列的千片报价单仅供预算参考，指美元报价（规定订量的单价，美国离岸价），如有修改，恕不另行通知。由于地区关税、商业税、汇率及手续费原因，国际报价可能不同。对于指定订量报价或交货报价，请联系当地的ADI授权代理商。对于评估板和套件的报价是指单片价格。
交付周期
请参见我们的首席客户官关于交付周期的最新沟通说明。
采样
选择上方“样片”按钮将重定向至第三方ADI样片网站。登录后，所选部件将转移到您在此网站上的购物车。如果您之前从未使用过此网站，请创建一个新帐户。有关此样片网站的任何问题，请联系SampleSupport@analog.com。
购买评估板
所示报价为单片价格
以上评估板报价仅供人民币结算及大陆购买使用， ADI均提供正规发票，如需美金结算及其他地区购买请直接跳转至英文页面进行购买。