概览
描述
The DA7218 is a high-performance, low power audio codec optimized for use in portable applications or wearable devices. It has single-ended headphone outputs with headphone detect for use in accessories, offering excellent left to right channel separation and common mode noise rejection.
DA7218 also has a stereo DAC to headphone output path and ultra-low power operating modes to support always-on audio detect applications. It contains two analog microphone input paths, or up to four digital microphone input paths, or a combination of both. The other chip in this family, the DA7217 has differential headphone outputs without headphone detect, and has been designed for use inside headset devices.
Benefits
- Superior hi-fidelity audio performance for immersive record and playback
- Sub 500µW always-on power extends battery life for audio activity detection
- Flexible programming filtering (sideband, voice) enhances voice and audio playback
- Mixed sample rate support for wideband applications
- Supports the latest generation of low power analog and digital microphones
- Small package footprint with an optimized ballout conducive to low cost PCB manufacturing
特性
- High-performance stereo DAC to headphone playback path with 110dB dynamic range
- 4mW stereo playback power consumption
- DAC digital filters with audio and voice mode options, five-band equalizer and five programmable biquad stages
- Dedicated low-latency digital sideband filter with three programmable biquad stages
- High-performance microphone to ADC record path with a 105dB dynamic range
- 2.5mW stereo record power consumption
- ADC digital filters with audio and voice mode options
- 500µW always-on record mode with automatic level detection
- Hybrid analog/digital automatic level control to dynamically control the record level
- Shutdown mode offering current consumption during standby of 2.5µA
- Two low noise microphone bias regulators with programmable output voltage and ultra-low power mode
- Ability to differentiate between stereo and mono headsets
- Automatic detection of headset removal and confirmation of headset insertion
产品对比
应用
设计和开发
支持
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問一下DA7218的問題
我現在想要的功能:輸出數據到另一個mcu mic input : 2個differential連接的mic mcu master DAI mclk : 3 MHz , sample rate:大概12kHz(因為是12M crystal除出來的) i2s data type , 16bit ...
2023年8月21日 -
問一下DA7218的問題
我現在想要的功能:輸出數據到另一個mcu mic input : 2個differential連接的mic mcu master DAI mclk : 3 MHz , sample rate:大概12kHz(因為是12M crystal除出來的) i2s data type , 16bit ...
2023年8月21日 -
DA7218概率性无输出
... WRITE DA7218 0x09 0x80 WRITE DA7218 0x00 0x01 WRITE DA7218 0x0B 0xBB WRITE DA7218 0x0D 0x01 WRITE DA7218 0x18 0xE0 WRITE DA7218 0x1A 0xE0 WRITE DA7218 0x2C 0x88 WRITE DA7218 0x2D 0x05 WRITE DA7218 0x2E 0x88 WRITE DA7218 0x2F 0x05 WRITE DA7218 0x5C 0x05 WRITE DA7218 0x5D 0x18 WRITE DA7218 ...
2023年7月18日