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+886-02-27884800 |
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+886-02-27885969 |
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General Description
eSM Series are single chip Voice/Dual tone Melody/Dual tone Sound Effect synthesizer Ics. It contain one 4-bit input port (provided for Esm005 and above), two 4-bit I/O ports, a tiny controller, and adopt improved algorithm to achieve pure speech. User's applications, such as section combination, trigger modes, control outputs, keyboard matrix, and other logic functions, are easily implemented by programming through its tiny controller.
Features
- Single power supply 2.4 V ~ 5 V.
- One 6-bit timer overflow control.
- PCM, ASPCM, and ASPCM+ synthesizer, and dual tone melody/sound effect generator.
- 4K~32K Hz playing speed for voice play-back.
- Multiple tempos for dual tone melody/sound effect play-back.
- Variable beats for dual tone melody/sound effect play-back.
- Multiple volume control levels.
- Fixed current D/A output to drive external connected transistor for voice output.
- Pin P3.2 can be programmed as IR communication pin to generate 38KHZ carrier.
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