8-pin (D) package image

LM1971M ACTIVE

Digitally-controlled 62 db audio attenuator with mute

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Qty Price
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Additional package qty | Carrier options These products are exactly the same but come in a different carrier type

LM1971MX ACTIVE custom-reels CUSTOM Custom reel may be available
Package qty | Carrier 2,500 | LARGE T&R
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Qty | Price 1ku | +

Quality information

Rating Catalog
RoHS No
REACH Affected
Lead finish / Ball material SNPB
MSL rating / Peak reflow Level-1-235C-UNLIM
Quality, reliability
& packaging information

Information included:

  • RoHS
  • REACH
  • Device marking
  • Lead finish / Ball material
  • MSL rating / Peak reflow
  • MTBF/FIT estimates
  • Material content
  • Qualification summary
  • Ongoing reliability monitoring
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Additional manufacturing information

Information included:

  • Fab location
  • Assembly location
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Export classification

*For reference only

  • US ECCN: EAR99

Packaging information

Package | Pins SOIC (D) | 8
Operating temperature range (°C) -40 to 85
Package qty | Carrier 95 | TUBE

Features for the LM1971

  • 3-Wire Serial Interface
  • Mute Function
  • Click and Pop Free Attenuation Changes
  • 8-Pin Plastic PDIP and SOIC Packages Available

Key Specifications

  • 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)

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Description for the LM1971

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.

Pricing

Qty Price
+

Additional package qty | Carrier options These products are exactly the same but come in a different carrier type

LM1971MX ACTIVE custom-reels CUSTOM Custom reel may be available
Package qty | Carrier 2,500 | LARGE T&R
Inventory
Qty | Price 1ku | +

Carrier options

You can choose different carrier options based on the quantity of parts, including full reel, custom reel, cut tape, tube or tray.

A custom reel is a continuous length of cut tape from one reel to maintain lot- and date-code traceability, built to the exact quantity requested. Following industry standards, a brass shim connects an 18-inch leader and trailer on both sides of the cut tape for direct feeding into automated assembly machines. TI includes a reeling fee for custom reel orders.

Cut tape is a length of tape cut from a reel. TI may fulfill orders using multiple strips of cut tapes or boxes to satisfy the quantity requested.

TI often ships tube or tray devices inside a box or in the tube or tray, depending on inventory availability. We pack all tapes, tubes or sample boxes according to internal electrostatic discharge and moisture-sensitivity-level protection requirements.

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Lot and date code selection may be available

Add a quantity to your cart and begin the checkout process to view the options available to select lot or date codes from existing inventory.

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