TEXAS INSTRUMENTS  LM1972M/NOPB  Audio Control, Attenuator, 4.5V to 12V, 3 Wire, Serial, SOIC, 20, 0 °C

TEXAS INSTRUMENTS LM1972M/NOPB

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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
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.
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Product Specifications, Documents & More


  • Audio Control Type: Attenuator
  • Audio IC Case Style: SOIC
  • Control / Process Application: Automated Studio Mixing Consoles, Music Reproduction Systems, Electronic Music(MIDI)
  • Control Interface: 3 Wire, Serial
  • MSL: MSL 3 - 168 hours
  • No. of Pins: 20
  • Operating Temperature Max: 70°C
  • Operating Temperature Min: 0°C
  • Output Power: 150mW
  • Packaging: Each
  • SVHC: No SVHC (15-Jun-2015)
  • Supply Voltage Range: 4.5V to 12V

Availability

Availability:  32

Available until stock is exhausted


  • 32 in stock for same day shipping

Price for: Each 1

Minimum order quantity: 1

Order multiple quantity: 1

Price: $5.86 $5.86

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Price

Quantity List Price
1 - 9 $5.86
10 - 99 $4.71
100 - 249 $4.29
250 - 499 $3.33
500 - 999 $3.12
1000 - 2499 $2.74
2500 - 4999 $2.72
5000+ $2.60
 
 
Low

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Substitutes


  Newark Part No. Manufacturer Part No Manufacturer / Description
Availability Price Qty
ascdsc ascdsc ascdsc ascdsc ascdsc
Exact
41K3545
LM1972MX/NOPB

LM1972MX/NOPB

TEXAS INSTRUMENTS

IC,Tone/Volume/Balance Control,CMOS,SOP,20PIN,PLASTIC

0

Price for: Full Reel 1

1000+ $2.55 2000+ $2.39 5000+ $2.34

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    More stock available week commencing 5/16/16

Not Normally Stocked

Non-Cancelable / Non Returnable

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