DA7219数据手册集成电路（IC）的编解码器规格书PDF

描述 Description

The DA7219 is an ultra-low power audio codec with Advanced Accessory Detection (AAD), which supports sample rates up to 96kHz at 24-bit resolution. It contains a mono microphone to Analog-to-Digital Converter (ADC) path and a stereo Digital-to-Analog Converter (DAC) to headphone (HP) path. AAD supports the detection and identification of 3-pole (headphone) and 4-pole (headset) jacks and allows the automatic pin order switching of MIC/GND on CTIA or OMTP headsets. It also supports automatic multiple button detection.

BenefitsGND/MIC polarity switch and multiple button detection for CTIA/OMTP audio jacks7.5mm2 package footprint enabling PCB space savings in area constrained applicationsCapless headphone driver eliminates large AC coupling capacitorsOptimized ball-out conducive for low cost PCB manufacturingAdvanced Accessory Detection (AAD)图像

特性 Features

• Android Wired Headset v1.1 compliant
• High-performance mono microphone to ADC record path with 90dB SNR
• ADC digital filters with Audio and Voice mode high-pass characteristics
• Low noise microphone bias regulator with programmable output
• High-performance stereo DAC to headphone playback path with 100dB SNR
• DAC digital filters with Audio and Voice mode high-pass cutoff and 5-band equalizer
• Advanced Accessory Detect supports
• 3 and 4-pole jack detection
• MIC/GND polarity switching (OMTP/CTIA jack types)
• Multiple button detection
• Headphone impedance testing

应用 Application

• 基于 Mbed™ 的图像处理解决方案
• 视频 IP 电话