API840N Datasheet - Apuls Intergrated Circuits

API840N 32 to 40 SEC INSTANT VOICE ROM

API840N is a high-quality voice synthesizer with a capacity of 32 to 40 seconds. A proprietary ADPCM algorithm is used. The audio message is stored in a 1024-Kbit on-chip EPROM. The API840N eliminates the need of complicated circuitry in voice playback (Figure 1) but still achieves high voice qualit.

API840N Features

* Voice length at - 8 KHz sampling is 32 seconds - 6 KHz sampling is 40 seconds

* Silence compression to save memory

* Eight trigger pins,TG1 to TG8 for 32 sections

* SBT pin play-all or sequential play-all

* 15 ms debounce time suitable for CDS

* IRP interrupt pin stops play

API840N_ApulsIntergratedCircuits.pdf