ADV7619 datasheet(13/24 Pages) AD

13 / 24 page

Data Sheet

ADV7619

Rev. B | Page 13 of 24

POWER SUPPLY RECOMMENDATIONS

POWER-UP SEQUENCE

The recommended power-up sequence for the ADV7619 is to

power up the 3.3 V supplies first, followed by the 1.8 V supplies.

RESET should be held low while the supplies are powered up.

Alternatively, the ADV7619 can be powered up by asserting all

supplies simultaneously. In this case, care must be taken while

the supplies are being established to ensure that a lower rated

supply does not go above a higher rated supply level.

3.3V SUPPLIES

POWER-UP

1.8V SUPPLIES

POWER-UP

3.3V

1.8V

1.8V SUPPLIES

Figure 7. Recommended Power-Up Sequence

POWER-DOWN SEQUENCE

The ADV7619 supplies can be deasserted simultaneously as long

as a higher rated supply does not go below a lower rated supply.

CURRENT RATING REQUIREMENTS FOR POWER

SUPPLY DESIGN

Table 6 shows the current rating requirements for power supply

design.

Table 6. Current Rating Requirements for Power Supply Design

Parameter

Current Rating (mA)

IDVDD

400

IDVDDIO

300

IPVDD

ITVDD

120

ICVDD

250

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