ISD18A04

ISD18A04 ISD ChipCorder® ISD18A04 Series DataSheet The information described in this document is the exclusive intellectual property of Nuvoton Technology Corporation and shall not be reproduced without permission from Nuvoton. Nuvoton is providing this document only for reference purposes of Audio Product Line based system design. Nuvoton assumes no responsibility for errors or omissions. All data and specifications are subject to change without notice. For additional information or questions, please contact: Nuvoton Technology Corporation. www.nuvoton.com Feb 1, 2023 Page 1 of 23 Rev3.3 ISD18A04 TABLE OF CONTENTS 1. GENERAL DESCRIPTION .................................................................................... 3 2. FEATURES............................................................................................................3 3. BLOCK DIAGRAM ................................................................................................. 4 4. PAD DESCRIPTION .............................................................................................. 5 5. FUNCTIONAL DESCRIPTION .............................................................................. 7 5.1. Detailed Description ..................................................................................... 7 Speech/Sound Quality .......................................................................................... 7 Duration ..................................................................