參數(shù)資料
型號： W9321S
廠商： WINBOND ELECTRONICS CORP
元件分類： 編解碼器
英文描述： MU-LAW, ADPCM CODEC, PDSO28
封裝： PLASTIC, SOP-28
文件頁數(shù)： 1/35頁
文件大小： 457K
代理商： W9321S
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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