API8208A中文資料APLUS數(shù)據(jù)手冊(cè)PDF規(guī)格書

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