分享一款不错的AKM AK4629高性能多路音频CODEC解决方案

1445 Codec 音频codec

问答对人有帮助，内容完整，我也想知道答案 0 本文介绍了AK4629主要特性, 方框图, 典型应用电路图以及电源连接案例,AKD4629-A评估板主要功能,框图,电路图和元件布局图. 0
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答案对人有帮助，有参考价值 0 AKM公司的AK4629是高性能多路音频CODEC,包括四路24位ADC和八路24位DAC通路,ADC采用增强双比特架构,DAC采用先进的多比特架构,具有非常低的噪音性能.ADC的取样速率高达96kHz,DAC的取样频率高达192kHz,ADC的S/(N+D)为92dB,动态范围S/N为102dB(单端输入),DAC的S/(N+D)为90dB,动态范围S/N为102dB,主要用在家庭影院,pro audio音响和汽车音响设备.本文介绍了AK4629主要特性, 方框图, 典型应用电路图以及电源连接案例,AKD4629-A评估板主要功能,框图,电路图和元件布局图. AK4629: High Performance Multi-channel Audio CODEC The AK4629 is a single chip audio CODEC that includes four ADC channels and eight DAC channels. The converters are designed with Enhanced Dual Bit architecture for the ADC’s, and Advanced Multi-Bit architecture for the DAC, enabling very low noise performance. The AK4629 ADC supports both single-ended and differential inputs and outputs. A wide range of applications can be realized, including home theater, pro audio and car audio. The AK4629 is available in a 48-pin LQFP package. AK4629主要特性: 4ch 24bit ADC - 64x Oversampling - Sampling Rate up to 96kHz - Linear Phase Digital Anti-Alias Filter - Single-ended / Differential Input - S/(N+D): 92dB (Single-ended, Differential) - Dynamic Range, S/N: 102dB (Single-ended), 103dB (Differential) - Digital HPF for offset cancellation - I/F format: MSB justified, I2S or TDM 8ch 24bit DAC - 128x Oversampling - Sampling Rate up to 192kHz - 24bit 8 times Digital Filter - Single-ended Outputs - On-chip Switched-Capacitor Filter - S/(N+D): 90dB - Dynamic Range, S/N: 106dB - I/F format: MSB justified, LSB justified(20bit,24bit), I2S or TDM - Individual channel digital volume with 128 levels and 0.5dB step - Soft mute - De-emphasis for 32kHz, 44.1kHz and 48kHz - Zero Detect Function High Jitter Tolerance TTL Level Digital I/F 3-wire Serial and I2C Bus μP I/F for mode setting Master clock: 256fs, 384fs or 512fs for fs=32kHz to 48kHz 128fs, 192fs or 256fs for fs=64kHz to 96kHz 128fs for fs=120kHz to 192kHz Power Supply: 4.5 to 5.5V Power Supply for output buffer: 2.7 to 5.5V Small 48pin LQFP 20110808101802726.gif 图1. AK4629方框图 20110808101803206.gif 图2. AK4629典型应用电路图 20110808101803524.gif 图3. AK4629电源连接案例 AKD4629-A评估板 The AKD4629-A is an evaluation board for the AK4629, a single chip CODEC that includes four channels of ADC and six channels of DAC. The AKD4629-A also has the digital audio interface and can achieve the interface with digital audio systems via opt-connector or BNC connector. AKD4629-A评估板功能: • On-board analog output buffer circuit • Compatible with 2 types of interface - AK4118 (DIT&DIR) with optical output/input and BNC output/input - Direct interface with AC3 decoder by 10pin header • 10pin header for serial control interface 20110808101803174.gif 图4.AKD4629-A评估板方框图 20110808101804134.gif 图5.AKD4629-A评估板电路图(1) 20110808101804326.gif 图6.AKD4629-A评估板电路图(2) 20110808101804112.gif 图7.AKD4629-A评估板电路图(3) 20110808101805477.gif 图8.AKD4629-A评估板电路图(4) 20110808101806227.gif 图9.AKD4629-A评估板电路图(5) 20110808101806114.gif 图10.AKD4629-A评估板电路图(6) 20110808101807612.gif 图11.AKD4629-A评估板元件布局图详情请见: http://www.asahi-kasei.co.jp/akm/en/product/ak4629/ak4629_f00e.pdf 和 http://www.asahi-kasei.co.jp/akm/en/product/ak4629/akd4629-a1-01e.pdf[

2021-6-1 11:40:29 评论举报向可嘉