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TEXAS INSTRUMENTS LM1972M/NOPB
Audio Control, Attenuator, 4.5V to 12V, Serial, SOIC, 20 Pins, 0 °C
- Manufacturer:
- TEXAS INSTRUMENTS TEXAS INSTRUMENTS
- Manufacturer Part No:
- LM1972M/NOPB
- Order Code:
- 3008963
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- Product Range
- -
- ECAD / MCAD
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Product Overview
The LM1972M/NOPB is a Micro-Pot 2-channel Audio Attenuator with mute fabricated on a CMOS process. Each channel has attenuation steps of 0.5dB from 0dB to 47.5dB, 1dB steps from 48dB to 78dB, with a mute function attenuating 104dB. Its logarithmic attenuation curve can be customized through software to fit the desired application. The performance of a μPot is demonstrated through its excellent Signal-to-Noise Ratio, extremely low (THD+N) and high channel separation. Each μPot contains a mute function that disconnects the input signal from the output, providing a minimum attenuation of 96dB. Transitions between any attenuation settings are pop free. The LM1972's 3-wire serial digital interface is TTL and CMOS compatible, receiving data that selects a channel and the desired attenuation level. The Data-Out pin of the attenuator allows multiple μPots to be daisy-chained together, reducing the number of enable and data lines to be routed for a given application.
- 3-wire serial interface
- Daisy-chain capability
- 104dB Mute attenuation
- Pop and click-free attenuation changes
- Green product and no Sb/Br
Applications
Audio, Consumer Electronics
Warnings
This device has limited built-in ESD protection, leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates.
Product Information
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- :
- Attenuator
- :
- 4.5V to 12V
- :
- Serial
- :
- SOIC
- :
- 20Pins
- :
- 0°C
- :
- 70°C
- :
- -
- :
- -
- :
- MSL 3 - 168 hours
Technical Documents (0)
Available for back order
More stock available to supplier lead times which is approximately 5/4/26
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Due to market conditions delivery times are for general guidance only and may be subject to change at short notice
¥802.56
(¥882.82 Inc. JCT)
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| Quantity | Price (Incl JCT) |
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| 1+ | ¥802.56 (¥882.82) |
| 10+ | ¥789.34 (¥868.27) |
| 25+ | ¥776.12 (¥853.73) |
| 50+ | ¥762.90 (¥839.19) |
| 100+ | ¥749.68 (¥824.65) |
| 250+ | ¥736.46 (¥810.11) |
| 500+ | ¥723.23 (¥795.55) |
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