AP8821 Datasheet PDF | APLUS Integrated Circuits

APLUS Integrated Circuits AP8821

aP8821 is a high quality voice synthesizer capable of varying playback duration. The audio message is stored in a 512K bits on-chip EPROM which can store up to 21 seconds of voice data at 6 KHz sample rate. The aP8821 eliminates the need of complicated circuitry in voice playback but still achieves high voice quality for different kind of sounds.

Part No.	AP8821
Datasheet	AP8821 Download
Manufacturer	APLUS Integrated Circuits
Description	Voice OTP IC
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FEATURES

21 Sec Voice Length at 6 KHz Combination of voice building blocks extends the duration of playback Voice data re-use saves memory space Maximum 14 voice groups 4 trigger pins, S1 to S4 for the 4 voice groups ( group1 ~ 4 ) SBT for sequential playblack for the rest of voice groups & CPU mode trigger CPU trigger mode for all 14 voice groups Holdable, Unholdable, Edge, Level triggering option Debounce time : 21ms ( Key mode ) / 85us (CPU mode ) - 6K sampling rate IRP interrupt pin for master reset

GENERAL DESCRIPTION

A proprietary ADPCM algorithm is used. Combinations in sections achieve longer playback duration. A pair of PWM output pins, VOUT1 and VOUT2 provides direct drive to buzzer or speaker. A current output pin, COUT, enables the device to drive a speaker through a low cost NPN transistor. No complex filtering or amplifier circuit is needed. An automatic ramp-down function eliminates undesired noise at the end of playback. 3 programmable Outputs for STP stop pulse, BUSY a...

AP8821 Datasheets by Manufacturer

1 datasheets

Part Number	Manufacturer
AP8821	Anwell Semiconductor