LM1971MX
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- Mfr.Part #
- LM1971MX
- Manufacturer
- National Semiconductor
- Package / Case
- 8-SOIC (0.154, 3.90mm Width)
- Datasheet
- Download
- Description
- LM1971 DIGITALLY CONTROLLED 62 D
- Stock
- 39,518
- In Stock ：
- 39,518
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- Manufacturer :
- National Semiconductor
- Product Category :
- Audio Special Purpose
- Number of Terminations :
- 8
- Voltage - Supply :
- 4.5V~12V
- Peak Reflow Temperature (Cel) :
- 235
- Supply Voltage-Min (Vsup) :
- 4.5V
- Series :
- Overture™
- Qualification Status :
- Not Qualified
- Terminal Form :
- Gull wing
- Length :
- 4.9mm
- Mounting Type :
- Surface Mount
- Operating Temperature :
- -40°C~85°C TA
- Terminal Finish :
- Tin/Lead (Sn/Pb)
- Reach Compliance Code :
- not_compliant
- Lead Free :
- Contains Lead
- Terminal Position :
- Dual
- Packaging :
- Tape and Reel (TR)
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Thickness :
- 1.58mm
- ECCN Code :
- EAR99
- Lifecycle Status :
- ACTIVE (Last Updated: 2 days ago)
- Height :
- 1.75mm
- Time@Peak Reflow Temperature-Max (s) :
- 30
- Number of Pins :
- 8
- RoHS Status :
- Non-RoHS Compliant
- Base Part Number :
- LM1971
- Consumer IC Type :
- CONSUMER CIRCUIT
- Interface :
- SPI
- Surface Mount :
- yes
- Package / Case :
- 8-SOIC (0.154, 3.90mm Width)
- JESD-609 Code :
- e0
- Applications :
- Communication Systems
- Function :
- Volume Control
- Supply Current-Max :
- 3mA
- Factory Lead Time :
- 6 Weeks
- Specifications :
- 115dB
- Width :
- 3.91mm
- Number of Channels :
- 1
- Datasheets
- LM1971MX
Audio Special Purpose National Semiconductor LM1971MX Overview
The LM1971MX by National Semiconductor represents a significant advance in the field of audio control, combining digital precision with robust analog performance. This digitally controlled audio attenuator is part of the wider LM1971 series, known for its exceptional sound quality and reliability. The device offers a logarithmic resistance ladder network that allows for precise volume control, making it an ideal choice for applications requiring high-resolution audio tapering in a compact form factor. With the ability to directly interface with microcontroller units (MCUs), the LM1971MX provides both flexibility and ease of integration for developers. Its minimal external part requirement and low noise operations ensure that this component not only meets but exceeds the rigorous demands of modern audio applications.
LM1971MX Features
The LM1971MX boasts a range of features that enhance its applicability in digital audio environments. Key features include:
- Single supply operation from 5V to 15V.
- Total harmonic distortion (THD) of 0.004% at 1 kHz, ensuring high fidelity in audio playback.
- Digitally controlled 62 dB range in 1 dB steps, permitting fine-grained audio level adjustment.
- Serial digital control interface compatible with standard SPI protocols.
- Mute function that provides full attenuation, useful in integrated audio systems.
LM1971MX Applications
- Professional Audio Equipment: Utilized in mixers and soundboards where precise control over sound levels is essential. The LM1971MX’s digital control interface allows for seamless integration into digital control schemas, enhancing the audio precision without compromising on sound quality.
- Consumer Audio Systems: Ideal for use in home theater systems and high-fidelity audio receivers where user interface and sound quality are paramount. Its precise attenuation steps ensure smooth volume transitions.
- Automotive Audio Systems: Integrates into car audio systems to provide consistent sound levels and quality, adapting easily to different listening environments while maintaining the simplicity of digital control.
- Communications Equipment: Applied in devices requiring clear and consistent audio output such as intercoms and mobile radios. The LM1971MX ensures minimal signal distortion and easy integration with microcontrollers for managing audio levels.
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