Hi all,
We develope the an extansion board for Raspberri PI
On ext. board codec TLV320DAC23IPW is installed
TLV320DAC23IPW which on the I2S interface receives a sound and transform it then to an analog form.
In this codec adjusting registers on I2C their description are programmed were in a datasheet
www.ti.com/.../tlv320dac23.pdf
Initially for TLV320DAC23IPW there was crystal 12 МHz but the sound went with distortions. At first we thought that it because crystal frequency not 12,288 MHZ as reccomended and mistiming ocured.
On a place of crystal quartz soldered the conductor and (incidentally) long about 25 cm. Bords begin to work without distortion of a sound also to this day tested with a throttle from 680 nH to 1 mkHn and too everything works.
Surprisingly with quartz of 12,288 MHZ the sound too goes the distorted.
There is a question – what to do.? If the chip works only with inductance instead of crystal . about what it is told nothing in a datasheet.
BR
Igor Kovryga
