ADV7480WBBCZ-RL データシートの表示（PDF） - Analog Devices

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ADV7480WBBCZ-RL

Dual Mode HDMI/MHL Receiver

Analog Devices 

ADV7480

POWER SUPPLY RECOMMENDATION

POWER-UP SEQUENCE

Adhere to the absolute maximum ratings at all times during

power-up (see Table 4). The power-up sequence for the

ADV7480 is as follows:

1. Assert RESET (pull the pin low).

2. Power up the 3.3 V supplies (DVDDIO and TVDD). These

supplies must be powered up simultaneously.

3. Power up the 1.8 V supplies (DVDD, CVDD, PVDD, MVDD, and

AVDD). These supplies must be powered up simultaneously.

4. RESET can be deasserted (pulled high) 5 ms after all

supplies are fully powered up.

5. After all power supplies and the RESET pin are powered up

and stable, wait an additional 5 ms before initiating I2C

communication with the ADV7480.

Data Sheet

POWER-DOWN SEQUENCE

The ADV7480 power supplies can be deasserted simultaneously

as long as a higher rated supply (for example, DVDDIO) does not

fall to a voltage level less than a lower rated supply (for example,

DVDD), and the absolute maximum ratings specifications are

followed.

3.3V

RESET

0V

3.3V

3.3V SUPPLIES

0V

1.8V

1.8V SUPPLIES

0V

RESET > 5ms

Figure 13. Supply Power-Up Sequence

Rev. 0 | Page 16 of 19

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