BD37069FV-M Datasheet, PDF (2/41 Pages) Rohm – Sound Processor for Car Audio with Built-in High-Voltage Amplifier

BD37069FV-M
Contents
General Description ........................................................................................................................................................................1
Features.......................................................................................................................................................................................... 1
Key Specifications^(Note2) ..................................................................................................................................................................1
Package .......................................................................................................................................................................................... 1
Applications ....................................................................................................................................................................................1
Typical Application Circuit ...............................................................................................................................................................1
Contents .........................................................................................................................................................................................2
Pin Configuration ............................................................................................................................................................................3
Pin Descriptions..............................................................................................................................................................................3
Block Diagram ................................................................................................................................................................................4
Absolute Maximum Ratings (Ta=25°C) ...........................................................................................................................................5
Thermal Resistance^{(Note 1)} ...............................................................................................................................................................5
Recommended Operating Condition...............................................................................................................................................5
Electrical Characteristics.................................................................................................................................................................6
Typical Performance Curve(s) ........................................................................................................................................................9
I²C-bus CONTROL SIGNAL SPECIFICATION ............................................................................................................................. 11
(1) Electrical specifications and timing for bus lines and I/O stages ..................................................................................... 11
(2) I²C-bus FORMAT.............................................................................................................................................................12
(3) I²C-bus Interface Protocol................................................................................................................................................12
(4) Slave address..................................................................................................................................................................12
(5) Select Address & Data.....................................................................................................................................................13
(6) About power on reset ......................................................................................................................................................21
(7) About start-up and power off sequence on IC .................................................................................................................21
(8) About relations of power supply voltage and the DC-bias voltage...................................................................................22
About advanced switch circuit.......................................................................................................................................................23
Application Example .....................................................................................................................................................................28
I/O Equivalence Circuit .................................................................................................................................................................29
Application Information .................................................................................................................................................................31
1) Absolute maximum rating voltage...................................................................................................................................31
2) About a signal input part.................................................................................................................................................31
3) About output load characteristics....................................................................................................................................31
4) About HIVOLB terminal(20pin) when power supply is off ...............................................................................................32
5) About signal input terminals ...........................................................................................................................................32
6) About changing gain of Input Gain and Fader Volume ...................................................................................................32
7) About inter-pin short to VCCH ........................................................................................................................................32
Operational Notes.........................................................................................................................................................................33
1. Reverse Connection of Power Supply ............................................................................................................................33
2. Power Supply Lines........................................................................................................................................................33
3. Ground Voltage...............................................................................................................................................................33
4. Ground Wiring Pattern....................................................................................................................................................33
5. Thermal Consideration ...................................................................................................................................................33
6. Recommended Operating Conditions.............................................................................................................................33
7. Inrush Current.................................................................................................................................................................33
8. Operation Under Strong Electromagnetic Field ..............................................................................................................33
9. Testing on Application Boards ........................................................................................................................................33
10. Inter-pin Short and Mounting Errors ...............................................................................................................................34
11. Unused Input Pins ..........................................................................................................................................................34
12. Regarding the Input Pin of the IC ...................................................................................................................................34
Ordering Information.....................................................................................................................................................................35
Marking Diagram ..........................................................................................................................................................................35
Physical Dimension, Tape and Reel Information...........................................................................................................................36
Revision History............................................................................................................................................................................37
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TSZ02201-0C2C0E100270-1-2
12. MAY. 2016 Rev.001