參數(shù)資料
型號(hào)： UDA1326PS
廠商： NXP Semiconductors N.V.
元件分類： Codec
英文描述： USB AUDIO-CODEC(通用串行總線音頻編解碼器)
中文描述： USB音頻編解碼器（通用串行總線音頻編解碼器）
文件頁(yè)數(shù)： 4/43頁(yè)
文件大?。?/td> 678K
代理商： UDA1326PS
Philips
Semiconductors, Inc.
USB-CODEC UDA1325PS
Technical Report
DML98022
Table of Contents
4
1. INTRODUCTION
...................................................................................................…
5
1.1
General Information
......................................................................................
5
2. SYSTEM STARTUP
..............................................................................................…
6
2.1
General Purpose I/O Pins and I/O Expander Pins
......................................
2.1.1 No Digital I/O Configuration .................................................................…
2.1.1.1 Functions within “No Digital I/O Configuration”
2.1.2 Four-pins Digital I/O configurations ........................................................
2.1.2.1 Functions within “Four-pins I/O Configuration” – mode ………..
2.1.3 Six-pins Digital I/O configurations ..........................................................
2.1.3.1 Functions within “Six-pins I/O Configuration” – mode ……..…..
2.1.4 Diode Selection ...................................................................................…
8
9
9
13
13
14
15
16
2.2
Additional External Circuitry
.......................................................................
2.2.1 Oscillator Circuit .................................................................................…
2.2.2 Coils at the input of the USB-bus ......................................................….
2.2.3 Coils at the Vdd lines of the UDA1325PS ..........................................…
2.2.4 I/O expander test – board ……………………………..……………………. 20
2.2.5 Bilateral Selector / Switch (HEF4066 or 74LV4066) ..………….………... 21
2.2.6 Single Master Controller board ………………………..……………………. 22
2.2.7 Suspend Mode implementation ………………………………………...…... 23
2.2.8 Default Jumper Settings ……………………………………
18
18
19
19
23
3.
4.
5.
6.
7.
8.
2.3
Currently implemented hardware configurations
…………………………..
24
CONFIGURATION DATA STRUCTURE
...................................................….
Working with Dynamic Bass Boost (DBB)
..........................................…….
Working with Default Volume
.............................................................……..
Working with Clipping Prevention and Distortion Level
..................……..
Product ID (idProduct) and Vendor ID (idVendor)
............................…..….
Other possible hardware configurations
............................……..………….
25
3.1
3.2
3.3
3.4
3.5
25
25
25
26
26
CUSTOMIZING YOUR DESIGN
.....................................................................
27
4.1
4.2
4.3
Handling Device Configurations
...........................................................……
Configuring the USB-CODEC
..........…….................................................….
The USB-I2C communication driver
.....................................................…….
27
27
27
USB CONTACT ADDRESS
...........................................................................
28
GLOSSARY
....................................................................................................
28
FREQUENTLY ASKED QUESTIONS
............................................................
29
REFERENCES
...............................................................................................
43
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