GENERAL DESCRIPTION

API8208A is a high quality voice synthesizer capable of varying playback duration. A proprietary ADPCM algorithm is used. The audio message is stored in a 512K bits on-chip EPROM which can store up to 20 seconds of voice data at 6 KHz sample rate.

FEATURES

• Development tools support

• Low standby current (<5 µA at 3V)

• 3.0V-6V single power supply operation

• Auto-power down rectly

• VOUT1 and VOUT2 drives buzzer or speaker di-

• COUT pin drives speaker with a transistor

• 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

• Built-in oscillator with variable sample rate Pulse, BUSY Signal, and LED

• Three programmable output pins for STP Stop

• 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 or random play

• Four trigger pins, TG1 to TG4 for eight groups

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

• Combination of voice building blocks

• Versatile features for playback

• Minimum 20 second voice length at 6 KHz