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HT84XXX Datasheet

  • HT84XXX

  • Magic VoiceTM

  • 31頁

  • HOLTEK

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HT84XXX
Magic Voice
TM
Features
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Operating voltage: 2.4V~5.0V
Programmable tone melody generator
ADPCM or
m-law
PCM, PCM synthesis
Wide range of sampling rate for voice
synthesis
Minimum sampling rate step: 100Hz
Voice melody mixed output
Programmable 2 channels of melody mixed
output
Programmable 2 channels of voice mixed
output
13 kinds of melody beats
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5 octaves of tone level and 18 tempos
16 levels of digital volume control
Two current type D/A outputs
Eight programmable I/O pins
Four programmable input pins
Provides 36 sec to 384 sec of voice capacity
Timer controller
Voice fill-in function
Powerful user-defined functions
Power-on initial setting
28-pin SKDIP package
Applications
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High-end educational leisure products
Alert and warning systems
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Speech synthesizers and sound effect
generators
General Description
The HT84XXX family is a series of programma-
ble speech synthesizers and tone generators de-
signed for user-defined voice and melody
applications. It provides various sampling
rates and beats, tone levels, tempos for the
speech synthesizer and melody generator. The
HT84XXX series has two built-in high quality,
current type D/A outputs with 16 levels of vol-
ume control. The user壟s commands enable the
user to program the powerful custom function
such as to build-in a tiny controller. The Magic
Voice
TM
provides various operational functions
similar to arithmetic operation, logic operation,
branch decision, random counter, and a pro-
grammable timer. The Magic Voice
TM
series
are suitable for versatile voice and sound effect
applications.
The HT84XXX Magic Voice
TM
is Easy For-
mat
TM
supported.
ROM Selection Table
The HT84XXX series provides various voice capacity as shown below:
Part No.
ROM
Voice
Length
HT84036
768Kb
36 sec
HT84072
1536Kb
72 sec
HT84144
3072Kb
144 sec
HT84192
4096Kb
192 sec
HT84384
8192Kb
384 sec
Note: The voice capacity is based on a sampling rate of 21Kb/s
Magic Voice is a trademark of Holtek Semiconductor Inc.
TM
Easy Format is a trademark of Grow With Me, Inc.
TM
1
April 26, 2000

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