LM1971
- 3-Wire Serial Interface
- Mute Function
- Click and Pop Free Attenuation Changes
- 8-Pin Plastic PDIP and SOIC Packages Available
Key Specifications
- Total Harmonic Distortion 0.0008 % (Typ)
- Frequency Response > 200 kHz (−3 dB) (Typ)
- Attenuation Range (Excluding Mute) 62 dB (Typ)
- Dynamic Range 115 dB (Typ)
- Mute Attenuation 102 dB (Typ)
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The LM1971 is a digitally controlled single channel audio attenuator fabricated on a CMOS process. Attenuation is variable in 1 dB steps from 0 dB to −62 dB. A mute function disconnects the input from the output, providing over 100 dB of attenuation.
The performance of the device is exhibited by its ability to change attenuation levels without audible clicks or pops. In addition, the LM1971 features a low Total Harmonic Distortion (THD) of 0.0008%, and a Dynamic Range of 115 dB, making it suitable for digital audio needs. The LM1971 is available in both 8-pin plastic PDIP or SOIC packages.
The LM1971 is controlled by a TTL/CMOS compatible 3-wire serial digital interface. The active low LOAD line enables the data input registers while the CLOCK line provides system timing. Its DATA pin receives serial data on the rising edge of each CLOCK pulse, allowing the desired attenuation setting to be selected.
技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | LM1971 Overture Audio Atten Series Dig Controlled 62 dB Audio Attenuator w/Mute 数据表 (Rev. B) | 2013-4-3 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
订购和质量
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