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參數(shù)資料
| 型號： | UPC1857ACT |
| 廠商： | NEC Corp. |
| 英文描述： | SOUND CONTROL IC WITH SURROUND AND I2C BUS |
| 中文描述： | 聲控集成電路環(huán)繞和I2C總線 |
| 文件頁數(shù)： | 6/44頁 |
| 文件大?。?/td> | 343K |
| 代理商： | UPC1857ACT |
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6
μ
PC1857A
CONTENTS
1.
PIN FUNCTIONS..............................................................................................................................
7
2.
ATTENTIONS....................................................................................................................................
14
3.
I
3.1
2
C BUS INTERFACE......................................................................................................................
Data Transfer..........................................................................................................................................
3.1.1
Start condition............................................................................................................................
3.1.2
Stop condition ............................................................................................................................
3.1.3
Data transfer ..............................................................................................................................
3.2
Data Transfer Format.............................................................................................................................
3.2.1
1-byte data transfer....................................................................................................................
3.2.2
Successive data transfer............................................................................................................
3.2.3
Acknowledge..............................................................................................................................
15
15
15
16
16
17
18
18
18
4.
EXPLANATION OF EACH COMMAND........................................................................................
4.1
Subaddress List.....................................................................................................................................
4.2
Initialization............................................................................................................................................
4.3
Surround Function.................................................................................................................................
4.4
Explanation of Each Command............................................................................................................
4.4.1
Mute...........................................................................................................................................
4.4.2
Output selection.........................................................................................................................
4.4.3
Surround mode ..........................................................................................................................
4.4.4
Surround effect ..........................................................................................................................
4.4.5
Mix .............................................................................................................................................
4.4.6
Automatic increment ..................................................................................................................
4.4.7
Volume level ..............................................................................................................................
4.4.8
Balance......................................................................................................................................
4.4.9
Bass level...................................................................................................................................
4.4.10 Treble level ................................................................................................................................
19
19
20
20
21
21
21
22
23
23
24
25
25
26
26
5.
ELECTRICAL CHARACTERISTICS ...............................................................................................
27
6.
CHARACTERISTIC CURVES..........................................................................................................
6.1
Frequency Characteristic in Each Mode..............................................................................................
6.2
Control Characteristic ...........................................................................................................................
6.3
I/O Characteristic ...................................................................................................................................
33
33
36
38
7.
PACKAGE DRAWING.....................................................................................................................
39
8.
RECOMMENDED SOLDERING CONDITIONS .............................................................................
40
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