TAS5630 External Oscillator Drive Requirements

Ray Ward

Other Parts Discussed in Thread: TAS5630

When using an external driver to drive the TAS5630 oscillator inputs, are there any drive requiremnts that must be met as far as slew rates and duty cycles when driving these pins?

When we look at the signals emmitted by the TAS5630, it appears the duty cycles are not exactly 50% and it appears there is some amount or edge control on the rising and falling edges of the pins.

Thank You

over 12 years ago

0 Ray Ward over 12 years ago

Prodigy 120 points

We are still looking for information on this question. Any anyformation would be appreciated.

0 Don Dapkus over 12 years ago in reply to Ray Ward

TI__Guru**** 189399 points

Hi, Ray,

Let me look into this for you.

-d2

0 sorenpoulsen over 12 years ago

TI__Intellectual 1560 points

Ray,

The oscillator output of TAS5630 is typically very close to 50% duty cycle and with rise/fall times of roughly 5ns/3ns unloaded and with 3.3V signal level.

We have not inlcuded specific parameters for these values in the datasheet since the specific duty cycle and rise/fall times from externbal clock source are not very critical due to the balanced clock receiver in TAS5630.

Audio

Audio forum

TAS5630 External Oscillator Drive Requirements