Help needed with short range radio communication

[kopa]

Hi everyone

I have a problem and I wonder if you can help??

I need to construct device to tranfer CD quality audio wirelessly .
The problem is power consumption,
Description:

One device - the transmiter may have rechargable batteries, and power
consumption doesn't matter (24h using time will be oki)
The other device is very small like In ear headphone maybe a little bit
bigger. Power consumption about 2mAh max, voltage 0.9-1.8V
need to work about 3-5 days.


I want to use it to transfer CD quality audio from transmiter to
receiver. Receiver has inside DSP
Bluetooth is not good because it needs about 30mA .
Maybe FM ???


Thabks for help

 

[martin griffith]

On 23 Feb 2005 15:19:06 -0800, in sci.electronics.design "kopa"
<michal_kopaczewski@op.pl> wrote:

Hi everyone

I have a problem and I wonder if you can help??

I need to construct device to tranfer CD quality audio wirelessly .
The problem is power consumption,
Description:

One device - the transmiter may have rechargable batteries, and power
consumption doesn't matter (24h using time will be oki)
The other device is very small like In ear headphone maybe a little bit
bigger. Power consumption about 2mAh max, voltage 0.9-1.8V
need to work about 3-5 days.


I want to use it to transfer CD quality audio from transmiter to
receiver. Receiver has inside DSP
Bluetooth is not good because it needs about 30mA .
Maybe FM ???


Thabks for help
FM maybe?

http://www.rohm.com/products/shortform/06audio/audio_index0.html#1
but Rohm dont spec current consumption in the data sheet



mrtin

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Gandhi