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LM1971, LM1971MX NOPB, LM1971N

Table of contents:
Info of LM1971
Info of LM1971MX NOPB
Info of LM1971N

LM1971, LM1971MX NOPB, LM1971N Selling Leads, Datasheet

MFG:NS Package Cooled:150 D/C:N/A

LM1971, LM1971MX NOPB, LM1971N Datasheet download

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Part Number: LM1971

MFG: NS

Package Cooled: 150

D/C: N/A

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LM1971 General 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.

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 DIP or SO 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.

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LM1971M	P2CMOS	0	48295	0	1	4172500	2	536440139
LM1971MX	P2CMOS	0	48295	0	1	4172500	2	536440139

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.

LM1971 Maximum Ratings

THD	0.0008 %
SNR	115 dB
Special Features	1 Channel, Digitally controlled audio attenuator
Supply Min	4.5 Volt
Supply Max	15 Volt
Equivalent Input Noise	4 uV/root(Hz)
Interface Type	Serial
Temperature Min	-40 deg C
Temperature Max	85 deg C
View Using Catalog

LM1971 Connection Diagram

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