Datasheet4U Logo Datasheet4U.com

LM1973 - 3-Channel 76dB Audio Attenuator

General Description

The LM1973 is a digitally controlled 3-channel 76dB audio attenuator fabricated on a CMOS process.

15.5dB, 1.0dB steps from 16dB 47dB, and 2.0dB steps from 48dB

76dB, with a mute function attenuating 104dB.

Key Features

  • 1.
  • 2 3-Wire Serial Interface.
  • Daisy-Chain Capability.
  • 104dB Mute Attenuation.
  • Pop and Click Free Attenuation Changes.

📥 Download Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
LM1973 Pot3-Channel 76dB Audio Attenuator National Semiconductor
LM1971 Digitally Controlled 62dB Audio Attenuator National Semiconductor
LM1972 Pot 2-Channel 78dB Audio Attenuator National Semiconductor
LM19 Temperature Sensor National Semiconductor
LM190E01 TFT LCD LG

Other Datasheets by Texas Instruments

Part Number Description
LM1971 Digitally Controlled 62dB Audio Attenuator
LM1972 2-Channel 78dB Audio Attenuator
LM19 TO-92 Temperature Sensor
LM193 Dual Differential Comparators
LM193-N Low-Power Low-Offset Voltage Dual Comparators

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
LM1973 www.ti.com SNAS093A – MAY 2004 – REVISED OCTOBER 2004 LM1973 µPot3-Channel 76dB Audio Attenuator with Mute Check for Samples: LM1973 FEATURES 1 •2 3-Wire Serial Interface • Daisy-Chain Capability • 104dB Mute Attenuation • Pop and Click Free Attenuation Changes APPLICATIONS • Automated Studio Mixing Consoles • Music Reproduction Systems • Sound Reinforcement Systems • Electronic Music (MIDI) • Personal Computer Audio Control KEY SPECIFICATIONS • Total Harmonic Distortion + Noise: 0.003 % (max) • Frequency response: 100 kHz (−3dB) (min) • Attenuation range (excluding mute): 76 dB (typ) • Differential attenuation: ±0.25 dB (max) • Signal-to-noise ratio (ref.