AD9882SLASHPCB datasheet(12/36 Pages) AD

12 / 36 page

REV. A

–12–

AD9882

Table IV. Power-Down Modes, 4:2:2 and 4:4:4 Format Descriptions

Analog

Digital

Active

Power- Interface

Interface

4:2:2

Mode

Down

Detect

Override

Select

Formatting Data Sheet Signals Powered On

Soft Power-

Serial bus, digital interface clock detect,

Down (Seek

analog interface clock detect, SOG

Mode)

Digital

Serial bus; digital interface and analog

Interface On

interface activity detect; SOG, band gap

reference; red, green, and blue outputs

Analog

Serial bus; analog interface and digital

Interface On

interface clock detect; SOG, band gap

4:4:4 Format

reference; red, green, and blue outputs

Analog

Serial bus; analog interface and digital

Interface On

interface clock detect; SOG, band gap

4:2:2 Format

reference; red and green outputs only

Serial Bus

Same as Analog Interface

Arbitrated

on 4:4:4 Mode

Interface

Serial Bus

Same as Analog Interface

Arbitrated

on 4:2:2 Mode

Interface

Serial Bus

Same as Digital Interface Mode

Arbitrated

Interface

Override to

Same as Analog Interface

Analog

4:4:4 Mode

Interface

Override to

Same as Analog Interface

Analog

4:2:2 Mode

Interface

Override to

Same as Digital Interface Mode

Digital

Interface

Absolute

Serial Bus

Power-

Down

NOTES

1Power-down is controlled via Bit 1 in Serial Bus Register 14H.

2Analog Interface Detect is determined by OR-ing Bits 7, 6, and 5 in Serial Bus Register 15H.

3Digital Interface Detect is determined by Bit 4 in Serial Bus Register 15H.

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