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国产立体声音频数模D/A转换器DP4344替代兼容CS4344
2022-07-22 09:54:00 【Zhou13682545343】
DP4344是一款完整的2通道输出数模转换芯片, 内含插值滤波器、Multi-Bit 数模转换器、输出模拟滤波器,并支持大部分的音频数据格式。基于一个带线性模拟低通滤波器的四阶 Multi-BitΔ∑调制器,自动检测信号频率和主时钟频率,在 2KHz 和 200KHz 之间自动调节采样率。
DP4344含有数字去加重模块,可以工作在3.3V和5V下。封装形式是 MSOP10。
DP4344主要特性
PIN对PIN替代CS4344,软硬件兼容
◆ Muti-BitΔ∑调制器,24 位 D/A 转换
◆ 工作电压:3.3V或5V
◆ 自动检测最大到192KHz 的采样频率
◆ 105dB 动态范围
◆ -90dB 总谐波失真+信噪比
◆ 低时钟抖动敏感度,线性滤波输出
◆ 片上数字去加重,支持所有标准音频接口
参考应用原理图
典型应用
◆ 汽车音响、DVD 播放解码器
◆ 数字电视、家庭影院
◆ 机顶盒、录音设备
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