AB2 - Using ISD Devices to Store and Send DTMF Tones
This brief explains how to use our parts to record, store and playback DTMF Touchtones™ correctly. It describes telephone specifications and ISD clock tolerances. (Use with AB4.)

AB6A - Using External Speaker Amplifiers with the ISD Single Chip Voice Record/Playback Devices
This brief describes two speaker amplifier circuits that may be used to obtain higher power speaker drive capability for the ISD voice storage products.

AB14 - Low Noise PC Board Layout Techniques for ISD Voice Record/Playback Devices
This brief gives guidelines and suggestions for proper PC board layout that will minimize digital noise getting into the analog path. As the mixed signal devices become larger and more dense the external factors become more significant in noise reduction.

AB16 - Non-Programmable Memory Cells
This brief discusses the effect of &ldquot;stuck cells� in an analog memory and the allowable number of such cells in each type of device.

AB17 - Reducing Noise in Designs with ISD Multilevel Storage Devices
This brief discusses common techniques that can be used to minimize noise while using ISD devices.

AB19A - ISD SOIC Package to be more Standard in Size
This brief describes the differences between the 350mil SOIC package (G) and the new 300mil SOIC package(s).

AB23 - Minimum I/O for ISD Devices
This brief explains how to utilize various ISD products with a minimum number of control lines from a microcontroller. The trade-offs between features and pin counts are explained.

AB29 - Die Attaching ISD Products to PCB
When attaching ISD die to PC boards (or to hybrid packages) it must be remembered that present ISD products have the substrate material connected to VSS.

AB38 - The ISD Chipcorder Product Line: Sizes, Row Lengths and other useful details for addressable ISD products
This brief explains in more detail how the ANA IN amplifier operates and how to avoid recording "pops" in your messages.

AN0019
This application note explains how to set the correct analog input level for recording into the ChipCorder^® devices.

AN0020
This application note describes the memory array architecture of most ChipCorder^® products in details.

AN-CC03021 - Power-On-Reset Solution for 3V ChipCorder^® Products

Installation files for QuickPro

Application Information Introduction

Microphone and Speaker Selection

Address Segmentation Resolution

Frequently Asked Questions

Device Operation

Using the Device

Basic Addressing

Operational Modes

Good Audio Design Practices

Single-Chip Board Layout Diagrams

Introduction and Circuit Examples

Example Circuit: Minimum I/O Application

Example Circuit: Microphone Circuit

Example Circuit: Single Transistor 3-Volt Speaker Driver