LM1971
FEATURES
- 23 3-Wire Serial Interface
- Mute Function
- Click and Pop Free Attenuation Changes
- 8-Pin Plastic PDIP and SOIC Packages
Available
APPLICATIONS
- munication Systems
- Cellular Phones and Pagers
- Personal puter Audio Control
- Electronic Music (MIDI)
- Sound Reinforcement Systems
- Audio Mixing Automation
KEY SPECIFICATIONS
- Total Harmonic Distortion 0.0008 % (Typ)
- Frequency Response > 200 k Hz (- 3 d B) (Typ)
- Attenuation Range (Excluding Mute) 62 d B
(Typ)
- Dynamic Range 115 d B (Typ)
- Mute Attenuation 102 d B (Typ)
DESCRIPTION
The LM1971 is a digitally controlled single channel audio attenuator fabricated on a CMOS process. Attenuation is variable in 1 d B steps from 0 d B to
- 62 d B. A mute function disconnects the input from the output, providing over 100 d B 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...
