參數(shù)資料
型號(hào)： W9320
廠商： WINBOND ELECTRONICS CORP
元件分類(lèi)： 編解碼器
英文描述： ADPCM Codec(ADPCM編解碼器)
中文描述： A/MU-LAW, ADPCM CODEC
文件頁(yè)數(shù)： 1/35頁(yè)
文件大?。?/td> 444K
代理商： W9320
W9320
ADPCM CODEC
Publication Release Date: August 1997
- 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.......................................................................................................15
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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