Hi all,
I am working on a project to put an mp3 board in my car. I would like to be able to wire the board straight into the car electrical system.
here is the unit i am buying:
**broken link removed**
on the datasheet (what little there is), is says maximum 5v.
Specifications:
Operating voltage: 4.5V DC
Current: 1A/4.5V DC
Maximum working voltage: 5V DC
Audio Output Power: 3Wx 2
Speaker Load: 4 ohm
Remote control distance: 5 ~ 10 meters
Sound quality: 32k ~ 320k
Support Files: MP3 format
Support Capacity: 8GB / SD / MMC / USB
what type of resistor would I need, or should I get some type of regulator?
converting the car electrical directly to 4.5v would be great.
I have in the past, wired LEDs into car electrical system, using the 12v resistors that came with the LED's (ebay sellers from china), but I have a feeling those little resistors wouldn't be enough protection for this device.
My plan is to integrate this little unit into the dashboard and run the line-out and/or speaker out to an pair of amplifiers. (one amp for front speakers, one amp for rear speakers)
which also brings up another question:
The speaker out ports on the data sheet say "4ohm speaker 3W x 2"
Is that output ok to run to a car amplifier?
any help and/or hyperlinks to the resistor/regulator needed would be greatly appreciated.
Thanks.