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HT812L0 Даташит

Номер в каталогеКомпоненты Описаниепроизводитель
HT812L0 2.8 Second Enhanced Tone Voice Holtek
Holtek Semiconductor Holtek
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General Description
The HT812L0 is a single chip PCM voice and sound effect synthesizer. It provides 2.8 seconds of voice capacity at a 6kHz sampling rate (FSR=6kHz) and 32 sections of sound effects/simple melodies. A maximum of 8 keys or 4×4 MATRIX are available. Of the 8 keys or 4×4 MATRIX, KEY1 can be optioned as a direct or sequential/random key, so that it can play an interlaced voice/sound effect/simple melody and generate various special sound effects for toys and sound effect generator applications.

Features
• Operating voltage: 2.4V~5.0V
• Low standby current (1µA Typ.)
• Voice/sound effect/simple melody output
• 2.8-second voice capacity
• 32 tone sections
• 16 words for each tone section
• Current type D/A output
• Mask options
    – Pull-high resistor: 20kΩ/50kΩ/100kΩ
    – KEY1: Direct or sequential/random key
    – Trigger mode: Retriggerable/Non-retriggerable
    – KEY1 play normal mode or twin mode Normal mode: one group for KEY1 Twin mode: Two groups for KEY1
    – 8 direct key or 4×4 MATRIX keys
    – Two-page trigger
    – Key debounce time: 22ms/45ms
    – Trigger function: Level hold/one shot/level trigger
    – FLAG1, FLAG2 outputs: 3Hz/sound level/busy/6Hz/endp
    – Melody/tone decay time: 2 sec/1 sec/0.5 sec/0.25 sec
    – Four kinds of envelope shapes for melody
• Tone shape: tone+2kHz/noise/tone/silence
• Tempo: 16ms/section~1 sec/section
• Dice form or 16-pin DIP

Applications
• Toys
• Alarm clocks
• Public address system
• Alert & warning system
• Sound effect generators
• Voice interface products

 

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