UPC1857 Ver la hoja de datos (PDF) - NEC => Renesas Technology

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UPC1857

SOUND CONTROL IC WITH SURROUND AND I2C BUS

NEC => Renesas Technology 

µPC1857A

CONTENTS

1. PIN FUNCTIONS.............................................................................................................................. 7

2. ATTENTIONS.................................................................................................................................... 14

3. I2C BUS INTERFACE...................................................................................................................... 15

3.1 Data Transfer.......................................................................................................................................... 15

3.1.1 Start condition ............................................................................................................................ 15

3.1.2 Stop condition ............................................................................................................................ 16

3.1.3 Data transfer .............................................................................................................................. 16

3.2 Data Transfer Format............................................................................................................................. 17

3.2.1 1-byte data transfer.................................................................................................................... 18

3.2.2 Successive data transfer............................................................................................................ 18

3.2.3 Acknowledge.............................................................................................................................. 18

4. EXPLANATION OF EACH COMMAND ........................................................................................ 19

4.1 Subaddress List ..................................................................................................................................... 19

4.2 Initialization ............................................................................................................................................ 20

4.3 Surround Function................................................................................................................................. 20

4.4 Explanation of Each Command ............................................................................................................ 21

4.4.1 Mute ........................................................................................................................................... 21

4.4.2 Output selection ......................................................................................................................... 21

4.4.3 Surround mode .......................................................................................................................... 22

4.4.4 Surround effect .......................................................................................................................... 23

4.4.5 Mix ............................................................................................................................................. 23

4.4.6 Automatic increment .................................................................................................................. 24

4.4.7 Volume level .............................................................................................................................. 25

4.4.8 Balance ...................................................................................................................................... 25

4.4.9 Bass level................................................................................................................................... 26

4.4.10 Treble level ................................................................................................................................ 26

5. ELECTRICAL CHARACTERISTICS ............................................................................................... 27

6. CHARACTERISTIC CURVES.......................................................................................................... 33

6.1 Frequency Characteristic in Each Mode.............................................................................................. 33

6.2 Control Characteristic ........................................................................................................................... 36

6.3 I/O Characteristic ................................................................................................................................... 38

7. PACKAGE DRAWING ..................................................................................................................... 39

8. RECOMMENDED SOLDERING CONDITIONS ............................................................................. 40

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