HT818D0 - 22.4-Second LOG-PCM Speech

Product Overview

Holtek Semiconductor Inc

Part number	HT818D0
Manufacturer	Holtek Semiconductor Inc
File Size	160.21 KB
Description	22.4-Second LOG-PCM Speech
Datasheet	HT818D0 Datasheet
Additional preview pages of the HT818D0 datasheet.

The HT818D0 is a single chip LOG-PCM voice synthesizer LSI with 22.4-second voice capacity at a 6kHz sampling rate.

The chip when triggered drives a speaker through an external transistor with a current switch D/A converter output.

Negligible current will be consumed in the standby state.

Operating voltage: 3.6V~5.0V Directly drives an external transistor Low standby current (1mA typ. for VDD=3V) Minimal external components 508 words table ROM for key functions Programmable silence length and end-pulse width (minimal end-pulse width is 330ms at a 6kHz sampling rate) 22.4-second voice capacity (based on a 6kHz sampling rate) Section options - Retriggerable - Non-retriggerable FLAG1 options - End-pulse output - 3HzB flash - 6Hz.

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Published: Mar 26, 2005 |