- 制造厂商:TI
- 产品类别:音频
- 技术类目:音频放大器 - 音量控制 IC
- 功能描述:具有静音功能的数字控制 62dB 音频衰减器
- 点击这里打开及下载LM1971的技术文档资料
- TI代理渠道,提供当日发货、严格的质量标准,满足您的目标价格
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.
- 3-Wire Serial Interface
- Mute Function
- Click and Pop Free Attenuation Changes
- 8-Pin Plastic PDIP and SOIC Packages Available
- 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)
All trademarks are the property of their respective owners.
- Number of channels (#)
- 1
- Power supply (V)
- 4.5 to 15
- Gain & attenuation (dB)
- 0dB to -62dB with 1.0dB steps
- THD + N @ 1 kHz (%)
- 0.0008
- Dynamic range (dB)
- 115
- Operating temperature range (C)
- -40 to 85
- Rating
- Catalog
LM1971的完整型号有:LM1971M、LM1971M/NOPB、LM1971MX、LM1971MX/NOPB,以下是这些产品的关键参数及官网采购报价:
LM1971M,工作温度:-40 to 85,封装:SOIC (D)-8,包装数量MPQ:95个,MSL 等级/回流焊峰值温度:Level-1-235C-UNLIM,引脚镀层/焊球材料:SNPB,TI官网LM1971M的批量USD价格:1.118(1000+)
LM1971M/NOPB,工作温度:-40 to 85,封装:SOIC (D)-8,包装数量MPQ:95个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM1971M/NOPB的批量USD价格:.958(1000+)
LM1971MX,工作温度:-40 to 85,封装:SOIC (D)-8,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-1-235C-UNLIM,引脚镀层/焊球材料:SNPB,TI官网LM1971MX的批量USD价格:.958(1000+)
LM1971MX/NOPB,工作温度:-40 to 85,封装:SOIC (D)-8,包装数量MPQ:2500个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM1971MX/NOPB的批量USD价格:.799(1000+)
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