API8108A 语音芯片.pdfVIP

APLUS API8108A VERSATILE 10 SEC INSTANT JUNE 1999 VOICE ROM FEATURES * Minimum 10 second voice length at 6 KHz * Built-in oscillator with variable sample rate * Versatile features for playback * Single external resistor to determine sample rate * Combination of voice building blocks * Built-in D/A converter, EPROM extends the duration of playback * ADPCM data compression provides high sound * Voice data re-use saves memory space quality * Four trigger pins,TG1 to TG4 for eight groups * Optional pop noise elimination function * SBT for sequential play-all * C OUT pin drives speaker with a transistor # Holdable and unholdable, edge and level # VOUT1 and VOUT2 drives buzzer or speaker triggering option directly * 15 ms debounce time suitable for CDS * Auto-power down * IRP interrupt pin for master reset * 3.0V-6V single power supply operation * Three programmable output pins for STP Stop * Low standby current (5 mA at 3V) Pulse, BUSY Signal, and LED * Development tools support GENERAL DESCRIPTION API8108A is a high quality voice synthesizer capable of Group of sections varying playback duration. A proprietary ADPCM algorithm The voice data memory area of the API8108A can be is used. The audio message is stored in a 256K bits on- subdivided into 124 sections. Any