LM1971M
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- Mfr.Part #
- LM1971M
- Manufacturer
- National Semiconductor
- Package / Case
- 8-SOIC (0.154, 3.90mm Width)
- Datasheet
- Download
- Description
- LM1971 DIGITALLY CONTROLLED 62 D
- Stock
- 12,583
- In Stock ：
- 12,583
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- Manufacturer :
- National Semiconductor
- Product Category :
- Audio Special Purpose
- Lifecycle Status :
- ACTIVE (Last Updated: 2 days ago)
- Factory Lead Time :
- 6 Weeks
- Number of Terminations :
- 8
- Mounting Type :
- Surface Mount
- Voltage - Supply :
- 4.5V~12V
- Lead Free :
- Contains Lead
- Surface Mount :
- yes
- Supply Voltage-Min (Vsup) :
- 4.5V
- Package / Case :
- 8-SOIC (0.154, 3.90mm Width)
- JESD-609 Code :
- e0
- Packaging :
- Tube
- Reach Compliance Code :
- not_compliant
- Function :
- Volume Control
- Consumer IC Type :
- CONSUMER CIRCUIT
- Number of Channels :
- 1
- Number of Pins :
- 8
- RoHS Status :
- Non-RoHS Compliant
- Terminal Finish :
- Tin/Lead (Sn/Pb)
- Series :
- Overture™
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Operating Temperature :
- -40°C~85°C TA
- Specifications :
- 115dB
- Width :
- 3.91mm
- Thickness :
- 1.58mm
- Terminal Position :
- Dual
- ECCN Code :
- EAR99
- Supply Current-Max :
- 3mA
- Applications :
- Communication Systems
- Peak Reflow Temperature (Cel) :
- 235
- Length :
- 4.9mm
- Height :
- 1.75mm
- Base Part Number :
- LM1971
- Time@Peak Reflow Temperature-Max (s) :
- 30
- Qualification Status :
- Not Qualified
- Terminal Form :
- Gull wing
- Interface :
- SPI
- Datasheets
- LM1971M
Audio Special Purpose National Semiconductor LM1971M Overview
The LM1971M, manufactured by National Semiconductor, is a digitally controlled audio attenuator integrated into a sophisticated design that offers exceptional sound quality and precision control. Ideal for applications requiring fine volume adjustments, this component features a logarithmic resistance ladder for smooth and accurate response. Designed for the audiophile and professional markets, the LM1971M provides high-performance audio attenuation with minimal distortion and noise, making it a key component in high-end audio equipment. The integration of digital control allows for precise volume settings, enhancing the overall acoustic experience and facilitating user-friendly interfaces in audio systems.
LM1971M Features
This IC features a single-channel attenuation controlled digitally through a simple three-wire serial interface. The LM1971M offers a dynamic range of 62 dB, provided in 1-dB steps, which ensures fine control over the audio output. Additionally, its total harmonic distortion (THD) is significantly low, thereby preserving audio integrity even at high attenuation levels. The device operates over a wide supply voltage range and is available in a compact SOP package, making it suitable for space-constrained applications.
LM1971M Applications
- High-End Audio Systems: Utilized in the volume control circuitry, the LM1971M ensures precise volume adjustment and maintains sound quality in high-end audio receivers and home theater systems.
- Professional Audio Equipment: This IC can be integrated into mixing consoles and other professional audio equipment to provide reliable and precise control over audio levels, essential for studios and live performances.
- Consumer Electronics: Employed in TVs and other consumer electronics, the LM1971M allows for digital control of sound output, enhancing the user interface with consistent and accurate volume adjustments.
- Computer Audio Interfaces: In computer audio systems, the LM1971M offers controlled attenuation for sound cards and speakers, improving the audio experience for gaming and multimedia applications.
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