VOICE
FEATURES
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High quality voice & sound generation
Record & playback with external SRAM
Playback-only with external EPROM or ROM
Stand-alone operation
32K x 8 direct memory addressing, expandable
Single 5V DC supply voltage
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VP-1000A
Digital Voice Processor
Low power consumption
Continuous Variable Slope Delta (CVSD) modulation
Sampling rate from 24Kbps to 128 Kbps
Message digitization with the VP-880 or the VW-1000A
Pin to pin compatible with UM5100
40-pin DIP (VP-1000A) or 48-pin QFP (VP-1000AF)
GENERAL DESCRIPTIONS
The VP-1000A is an advanced CMOS LSI chip for general
purpose voice/sound record and playback applications.
It can be interfaced with external SRAM to construct a
realtime recording circuitry, or with external ROM or
EPROM for playback only applications. When ROM or
EPROM is used, the sound must be digitized by using
Eletech's VP-880 Voice Development System or VW-
1000A Voice EPROM Writer.
The VP-1000A is totally self-contained. It can access the
external memory all by itself without the help from any
microprocessor. Although the chip provides only 15
address lines, an external counter can be easily added to
extend the memory addressing to virtuely no limitation.
Therefore very long message length can be achieved
easily. Overall, the VP-1000A offers high voice quality
and flexible memory addressing that no other chips can.
APPLICATIONS
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Voice memo recorder
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Sound effects generator
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Digital announcer for consumer, industrial, security
and telecommunication products
VP-1000A (DIP40) Pin Assignment
VP-1000AF (QFP48) Pin Assignment
Eletech Enterprise Co., Ltd.
531-3F Chung-Cheng Road
Hsin Tien, Taipei Hsien, Taiwan
Tel:+886 2-2218-0068 Fax:+886 2-2218-0254
http://www.eletech.com
Eletech Electronics, Inc.
16019 Kaplan Avenue
Industry, CA 91744, U.S.A.
Tel: (626) 333-6394 Fax: (626) 333-6494
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