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Part Number: MX93521
Description: This document describes how to implement an all-digital voice recorder using the MX93521 chip. The MX9...
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MX93521
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General Description
MX93521 General Description
This document describes how to implement an all-digital voice recorder using the MX93521 chip. The MX93521 is a Digital Recorder Data Pump which is controlled by an external microprocessor to perform various recorder function.
The MX93521 is fully controlled by a HOST controller through a simple HOST interface protocol. The HOST could initiate many digital recording functions such as record, play, repeat, search, skip, insertion, message managing and self-diagnosis. Also, HOST could set MX93521 in VOCODER mode and use MX93521 as a speech compres- sion/decompression data pump. The functions supported by MX93521 are listed as followed.
MX93521 Features
· Excellent sound quality by adopting 4800bps CELP speech compression alogorithm.
· Silent Compression algorithm to further compress si lence between speech.
· Flash Memory Management alogorithm to manage down-graded Flash Memory to store compressed speech data. With silent compression, one 4Mbit flash memory could store up to 18 minutes speech.
· Support 4/8/16/32 Mbit Samsung Flash Memory or its compatible parts
· Support both parallel and serial microprocessor inter face.
· Codec Interface circuit (support both TP3054 and MX93000)
· Host controllable LCD Module Interface
· Host writable message header (4 bytes) for identifica -tion or index purpose
· Powerful Editing Function
· Varieties of operating function including Rewind, Fast Forward, Repeat and message editing etc.
· Voice activated recording
· Use Flash memory to store user data (data bank)
· Upload/Download speech message data from/to HOST
· VOCODER mode (VOice COmpressor/ DEcompressoR)
· Direct CODEC Play Mode (Play PCM/u-Law data re ceived from HOST)
· Play Voice Prompt from ROM/FLASH memory
· DTMF tone genarator
· Silent Compression algorithm to further compress si lence between speech.
· Flash Memory Management alogorithm to manage down-graded Flash Memory to store compressed speech data. With silent compression, one 4Mbit flash memory could store up to 18 minutes speech.
· Support 4/8/16/32 Mbit Samsung Flash Memory or its compatible parts
· Support both parallel and serial microprocessor inter face.
· Codec Interface circuit (support both TP3054 and MX93000)
· Host controllable LCD Module Interface
· Host writable message header (4 bytes) for identifica -tion or index purpose
· Powerful Editing Function
· Varieties of operating function including Rewind, Fast Forward, Repeat and message editing etc.
· Voice activated recording
· Use Flash memory to store user data (data bank)
· Upload/Download speech message data from/to HOST
· VOCODER mode (VOice COmpressor/ DEcompressoR)
· Direct CODEC Play Mode (Play PCM/u-Law data re ceived from HOST)
· Play Voice Prompt from ROM/FLASH memory
· DTMF tone genarator
MX93521 Connection Diagram
MX93521
PDF/DataSheet Download
- Datasheet: MX93521
- File Size: 297911 KB
- Manufacturer: MCNIX [Macronix International]
- Click here to Download
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- ·MX919BDW
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- ·MX919BLH
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- ·MX919BP
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MX93521 Relative Products
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The MX93030A is an engine chip for Digital-Answering-Machine(DAM) with Bell 202 1200-baud FSK demodulator built-in.The MX93030A provides functional modules, including speech compression/decompression, telephone line signal processing, voice prompt, ARAM mana...
MX93022A
The MX93022A is an engine chip for Digital-Answering-Machine(DAM).The MX93022A provides functional modules, including speech compression/decompression, telephone line signal processing, voice prompt, AFLASH management.The MX93022A operates as a slave periphe...
MX93021
The MX93021 is an engine chip for Digital-Answering-Machine.The MX93021 provides functional modules, including speech compression/decompression, telephone line signal processing, ROM voice prompt, ARAM management.Controlled by host, the MX93021 provides the ...
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