Errata: CS5371/72 Errata (Reference CS5371/72 data sheet revision DS255F2 dated SEP ’05) Erratum #1 : THD for ±5% tolerance unipolar power supplies. Description: Characterization testing shows degraded total harmonic distortion performance for certain unipolar power supply conditions. Modulator does not meet -112 dB maximum THD performance for the following power supply configurations: Test Conditions VA+ VA- VD Max THD -5% Unipolar Analog / -5% Digital +4.75 V 0V +3.135 V -100 dB -5% Unipolar Analog / +5% Digital +4.75 V 0V +5.25 V -100 dB +5% Unipolar Analog / -5% Digital +5.25 V 0V +3.135 V -100 dB +5% Unipolar Analog / +5% Digital +5.25 V 0V +5.25 V -100 dB Work Around: Use of a unipolar analog power supply (VA+ = +5 V, VA- = GND) is not recommended. If unipolar operation is required, use a nominal +5.00 V analog power supply to achieve data sheet performance. Erratum #2 : CS5371 DC input glitch. Description: Applying a large DC input to the CS5371 device will sometimes show a 1 to 3 second glitch in the conversion output. This glitch is not present over short time scales or with a terminated input. Work Around: Connect pin 13 to GND. Power consumption will increase by 2x. CONTACTING CIRRUS LOGIC SUPPORT For a complete listing of direct Distributor, Sales, and Sales Representative contacts, visit the Cirrus Logic website at http://www.cirrus.com. http://www.cirrus.com Copyright © Cirrus Logic, Inc. 2005 (All Rights Reserved) ER255D2 SEP ‘05 Erratum #3 : CS5372 power down behavior. Description: Powering down only one channel of CS5372 can cause a 1 to 3 second glitch in the conversion output when measuring large DC signals. This glitch is not present over short time scales or with a terminated input. Work Around: Power down both PWDN1 and PWDN2 together when powering down the device. 2 ER255D2