Datasheet Texas Instruments LM1971M/NOPB — 数据表

LM1971
www.ti.com SNAS104B – FEBRUARY 1995 – REVISED APRIL 2013 LM1971 Overture™ Audio Attenuator Series Digitally Controlled 62 dB Audio Attenuator
with/Mute
Check for Samples: LM1971 FEATURES DESCRIPTION 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. 1 23 3-Wire Serial Interface
Mute Function
Click and Pop Free Attenuation Changes
8-Pin Plastic PDIP and SOIC Packages
Available APPLICATIONS Communication Systems
Cellular Phones and Pagers
Personal Computer Audio Control
Electronic Music (MIDI)
Sound Reinforcement Systems
Audio Mixing Automation 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) The performance of the device is exhibited by its
ability to change attenuation levels without audible …