Ultra low power clock generator for portable devices

[DanioIO]

Hi,
Im trying to make a simple mp3 player based on ADAU1761 DSP Audio Codec, but i stopped at a small problem, this ic requires a clock generator, but i checked so manufacturers and they consider 4mA as a low power clock generator. I can not used 4mA for a clock, is there a lower current solution? I need a clock in 8-27MHz range.
Example low power oscillator: http://www.sitime.com/products/datasheets/sit8008/SiT8008-datasheet.pdf
ADAU1761 datasheet: http://www.analog.com/static/imported-files/data_sheets/ADAU1761.pdf

[Marco]

Bit of googling for low voltage/current oscillators finds the ASD series from Abracon and the HK series from Mercury Crystal.

That said, why is it so important? Even driving in ear headphones are going to make it pretty much irrelevant.

[DanioIO]

I found an 0.7mA solution, can i get even lower current? The 0.7mA i can achieved using a LTC6930-8.00 oscillator.
I need a low power solution for standby mode, in which i the main IC will running consuming about 7-10mA.

LTC6930 (http://cds.linear.com/docs/en/datasheet/6930fd.pdf).

[Marco]

What's the boot time of your device? Can't you just power gate everything with a small micro (using the internal RC oscillator) and a FET?

PS. although I doubt it matters, a 12.288 MHz oscillator will give you the cleanest clock.