GENERAL DESCRIPTION

API8108A is a high quality voice synthesizer capable of varying playback duration. A proprietary ADPCM algorithm is used. The audio message is stored in a 256K bits on chip EPROM which can store up to ten seconds of voice data at 6 KHz sample rate.

FEATURES

* Minimum 10 second voice length at 6 KHz

* Combination of voice building blocks

* Versatile features for playback

* Voice data re-use saves memory space extends the duration of playback

* Three programmable output pins for STP Stop Pulse, BUSY Signal, and LED

* IRP interrupt pin for master reset

* 15 ms debounce time suitable for CDS triggering option

  # Holdable and unholdable, edge and level

* SBT for sequential play-all

* Four trigger pins,TG1 to TG4 for eight groups

* Built-in oscillator with variable sample rate

* Development tools support

* C OUT pin drives speaker with a transistor

  # V OUT1 and VOUT2 drives buzzer or speaker directly

* Optional pop noise elimination function quality

* ADPCM data compression provides high sound

* Built-in D/A converter, EPROM

* Single external resistor to determine sample rate

* Low standby current (<5 A at 3V)

* 3.0V-6V single power supply operation

* Auto-power down directly