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參數資料
| 型號： | W9321 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 編解碼器 |
| 英文描述： | ADPCM Codec(ADPCM編解碼器) |
| 中文描述： | MU-LAW, ADPCM CODEC, PDIP28 |
| 封裝： | PLASTIC, DIP-28 |
| 文件頁數： | 1/35頁 |
| 文件大?。?/td> | 457K |
| 代理商： | W9321 |
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Preliminary W9321
ADPCM CODEC
Publication Release Date: May 1999
- 1 -
Revision A1
Table of Contents-
1. GENERAL DESCRIPTION...........................................................................................................................2
2. FEATURES..................................................................................................................................................2
3. PIN CONFIGURATION.................................................................................................................................3
4. PIN DESCRIPTIONS....................................................................................................................................3
4.1. Power Control Interface.......................................................................................................................3
4.2. Analog Interface..................................................................................................................................4
4.3. ADPCM/PCM Serial Interface..............................................................................................................5
4.4. Serial Setup Port(SSP) Interface .........................................................................................................5
5. SYSTEM DIAGRAM.....................................................................................................................................6
5.1 Pair Gain System.................................................................................................................................6
5.2. Cordless Phone System......................................................................................................................7
6. BLOCK DIAGRAM.......................................................................................................................................8
7. FUNCTIONAL DESCRIPTIONS ...................................................................................................................8
7.1. Power Supply Management System ....................................................................................................8
7.2.
Σ
Codec-Filter...................................................................................................................................9
7.3. DSP Engine ........................................................................................................................................9
7.4. Serial Setup Port (SSP).....................................................................................................................12
7.5. Sequence and Control.......................................................................................................................14
7.6. I/O Level...........................................................................................................................................14
8. CONTROL AND STATUS REGISTERS......................................................................................................14
8.1. Introduction.......................................................................................................................................15
8.2.
Byte Register Description..................................................................................................................15
9. ELECTRICAL CHARACTERISTICS...........................................................................................................24
9.1. Absolute Maximum Ratings...............................................................................................................24
9.2. DC Characteristics............................................................................................................................24
9.3. Analog Transmission Characteristics.................................................................................................25
9.4. Analog Electrical Characteristics .......................................................................................................26
9.5. Digital Switching Characteristics........................................................................................................27
10. APPLICATION INFORMATION................................................................................................................30
10.1. Handset Application for Wireless Communication............................................................................30
10.2. Transformer Application for Public Switching Telephone Network (PSTN)........................................30
11. HOW TO PROGRAM THE TONE GENERATOR......................................................................................31
11.1. Introduction.....................................................................................................................................31
11.2. Tone Frequency Coefficient Calculation...........................................................................................32
11.3. Tone Attenuation Coefficient Calculation .........................................................................................32
11.4. Frequency Coefficients for the DTMF Signal....................................................................................32
12. PACKAGE DIMENSIONS ........................................................................................................................33
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