Interfacing AD1885 to BF535
I am new to this field, and I would like to interface AD1885 to BF535.
Can anyone suggest me the approach how to achieve this?
On 08/07/2010 12:22, alavenu kokila wrote:
> I am new to this field, and I would like to interface AD1885 to BF535.
> Can anyone suggest me the approach how to achieve this?
According to the ADI website this part is obsolete..
So it is probably not a good choice (it seems even the data sheet is not
linked from ADI product page to any more).
I'm not familiar with specifics of AD1885 but whatever part you chose,
these usually interface with DSP quite simply using one the DSP SPORT
interfaces and the data sheet may well have examples of exactly how to
do this. You may need to configure the device and this is often done by
multiplexing configuration info with audio streams on the SPORT
somehow, or by using a separate SPI slave interface.
The only real design choice you have to make is where to derive the
SPORT clock from (which determines sample rate). Typically this is
either externally from some clock or PLL (clock is input to CODEC and
DSP) or internally by the DSP (clock is output by DSP).