Our customer are planning to use ADV728x or ADV748x for the rear camera (automotive).
Which is quicker to lock on the video signal?
As per expert comment,ADV7182/728x can switch from one analog input to another quickly. This is particular true in automotive applications where the demand to switch inputs in 'a blink of an eye' (i.e. approximately 250 ms) is usual.
So i beleive,ADV728x can quicker to lock on the video signal.
Please refer Fast Switch Mode- ADV728x
ADV748x - When the fast locking mode is enabled, the time required for the ADV748x to lock to a stable analog input will be decreased and also this mode is intended only for camera sources providing a stable video signal with a fixed video standard.It should therefore only be used with this type of analog sources. Enabling fast locking,it will disables many features affecting the robustness to unstable video sources and also Rovi (Macrovision) copy protected sources. This mode should therefore not be used with unstable video sources, and sources providing signals with Rovi (Macrovision) copy protection signals.
ADV728X-The fast lock mode is a mode that allows the ADV728x part to lock to an analog video source more quickly.We would advise customers who use the ADV728x in automotive applications to fast switch mode or fast lock mode.The ADV728x is designed to be robust to poor video sources (e.g. A VCR player that may not output horizontal sync signals correctly).
Note : In fast switch mode the ADV728x is less robust to poor video sources. In fast switch mode the ADV728x can only connect to NTSC, NTSC4.43 or PAL-I signals. In fast switch mode the ADV728x is not robust to Rovi (Macrovision) copy right protection. Thanks,
Thank you for your reply.
I already know what fast switch is.
I am asking which is faster.
Is it difficult to judge which is faster?When using a rear camera of a car, which is recommended?
Thank you for your reply,
I understood what you said.
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