PRODUCT NOTIFICATION

ISO7230A

ISO7231A

An ISO723xA anomaly occurs when a negative-going pulse below the specified 1

µs minimum bit width is input

to the device. The output locks in a logic-low condition until the next rising edge occurs after a 1

µs period.

Positive noise edges in pulses of less than the minimum specified 1

µs have no effect on the device, and are

properly filtered.

To prevent noise from interfering with ISO723xA performance, it is recommended that an appropriately sized

capacitor be placed on each input of the device

Figure 11. ISO723xA Anomaly

Copyright © 2008, Texas Instruments Incorporated

Submit Documentation Feedback

13

Product Folder Link(s): ISO7230A ISO7231A