Hi-
I'm looking for a little more information on the Osc Trim register-
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OSCILLATOR TRIM REGISTER (0x1B)
The TAS5717/9 PWM processor contains an internal oscillator to support autodetect of I2S clock rates. This reduces system cost because an external reference is not required. Currently, TI recommends a reference resistor value of 18.2 kΩ (1%). This should be connected between OSC_RES and DVSSO.
Writing 0x00 to register 0x1B enables the trim that was programmed at the factory.
Note that trim must always be run following reset of the device.
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I think I understand the function of the oscillator- but what needs to be done to trim it? That last Note concerns me as I can't find any other references to trim in the spec.
Thanks
markd
