SN65LVDS93A: power up/down sequence between TFP401A(DVI RX) and SN65LVDS93A(LVDS TX)

Hello Hirotaka-san,

There is no a requirement for the power-up sequence for both devices.

We just suggest following the sequence stated in the SN65LVDS93A datasheet which describes how to power up/down an LCD screen.

Power-up sequence :
1. Ramp up LCD power (maybe 0.5 ms to 10 ms) but keep backlight turned off.
2. Wait for additional 0-200ms to ensure display noise won’t occur.
3. Enable video source output; start sending black video data.
4. Toggle LVDS83B shutdown to SHTDN = VIH.
5. Send >1 ms of black video data; this allows the LVDS83B to be phase locked, and the display to show black
data first.
6. Start sending true image data.
7. Enable backlight.
Power-down sequence:
1. Disable LCD backlight; wait for the minimum time specified in the LCD data sheet for the backlight to go low.
2. Video source output data switch from active video data to black image data (all visible pixel turn black); drive
this for >2 frame times.
3. Set SN65LVDS93A input SHTDN = GND; wait for 250 ns.
4. Disable the video output of the video source.
5. Remove power from the LCD panel for lowest system power.

Regards