特性
- High-performance 24-bit audio codec in 7.5mm2 footprint
- Ultra-low power consumption. Stereo Playback: 6.9mW, Stereo Record: 2.0mW at 1.8V
- Supports up to four analog microphones with two switchable low-noise microphone bias outputs
- Digital microphone interface supporting single-channel or dual-channel options
- Stereo auxiliary input channel
- Flexible analog and digital mixing paths
- DSP for ALC, 5-band EQ, noise gate, beep generator
- System controller for pop/click-free operation and easy setup
- Bidirectional I2S with sample-rate tracking
- Mono lineout/mini speaker driver: 1.2W at 5V, THD<10%, R = 8Ω
- Integrated PLL supports common audio sample rates between 8kHz - 96kHz from 2MHz - 54MHz reference clock
- Optimized ball-out conducive for low-cost PCB manufacturing
描述
The DA7212 is a high-performance, low-power audio codec with an enhanced hybrid Automatic Level Control (ALC) and a powerful speaker driver targeting wearable, portable, and embedded applications. It operates from a single supply and has an internal LDO that can be used to optimize power consumption.
The DA7212 audio codec has exceptionally low always-on power consumption (650µW) which can extend the battery life of portable devices – including wearable devices - in an "always-on" mode enabling constant tracking and instant recognition of voice commands.
It integrates an enhanced hybrid ALC that offers faster reaction times and finer gain resolution to maintain a consistent audio quality level when recording.
产品参数
| 属性 | 值 | 
|---|---|
| ADC SNR A-weighted support(dB) @ 48kHz | 90 @ 1.8V | 
| DAC SNR A-weighted support(dB) @ 48kHz | 100 @ 1.8V | 
| Power Consumption During Record | 2.0mW @ 1.8V | 
| Power Consumption During Playback | 3.1mW @ 1.8V | 
| Headphone Power Output | 2 x 67mW @ 2.5V | 
| Audio Interface | 2-wire | 
| Advanced Features | 5bd EQ, ALC, Noise gate, Beep generator | 
封装选项
| Pkg. Type | Pkg. Dimensions (mm) | Pitch (mm) | 
|---|---|---|
| 34-WLCSP | 4.54 x 1.66 | 0.5 | 
应用方框图
|  | 宠物摄像机器人 具有实时视频、音频和无线控制功能的移动宠物摄像机器人。 | 
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|  | 唱盘系统 这款唱盘系统采用低功耗 MCU 和 RIAA 前置放大器,可实现精确的电机和音频控制。 | 
|  | 具有 AI 功能的视频会议摄像头 配备双摄像头和波束成形拾音的 AI 驱动型 360° 视频会议系统。 | 
|  | 家用电器人机界面(HMI) 面向智能家电的自定义 HMI 系统,支持显示屏、触控、语音及 NFC 等多种交互方式。 | 
|  | AI 行车记录仪 采用 AI 技术的行车记录仪,具备高性能视觉处理、ADAS 和实时智能分析功能。 | 
|  | 配备高性能音频编解码器的语音 PLC 电力线通信无需额外电缆即可实现音频传输,从而降低了成本和复杂性。 | 
|  | Arm Cortex-A55 MPU Feather SoM 开源友好的 Feather SoM 配备 1GHz Arm Cortex-A55 功能和多种连接方式。 | 
|  | Arm Cortex-M85 MCU Feather 系统级模块 小型但强大的瑞萨 Cortex-M85 系统级模块,用于高效、适应性强的物联网和自动化解决方案。 | 
|  | 高端功能丰富的 HMI 平台 灵活的 HMI 平台,为显示分辨率、音频、扬声器等提供丰富的功能支持。 | 
|  | 智能视觉 AI 摄像头模组 AI 摄像头模块为智能应用提供各种检测功能。 | 
|  | 扫地机器人 这款智能扫地机器人具有环境映射、防跌落、障碍物检测、自动充电、应用程序控制等功能。 | 
|  | 门禁系统,具有 NFC、摄像头和电容式触摸身份验证功能 门禁系统通过 NFC、Wi-Fi、PoE、本地存储和灵活的操作系统支持确保安全性。 | 
|  | 便携式 POS 终端 便携式移动 POS 机,支持安全、无线和多种支付方式,可在任何地方进行流畅的交易。 | 
|  | 基于 MPU 的单板计算机 支持 Linux 的 SBC、无线连接和适用于嵌入式应用的紧凑外形。 | 
其他应用
- Personal media players
- Audio headphone/headsets
- Embedded applications
- Arduino compatible development systems
- Wearables
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