BU7963GUW Datasheet, PDF (9/20 Pages) Rohm – Data rate 1350Mbps RGB Interface

BU7963GUW
Technical Note
●Power Modes
BU7963GUW has three power modes.
1) Shutdown Mode
BU7963GUW goes to Shutdown Mode when XSD = ‘L’. All logic circuits are initialized in the Shutdown Mode.
All high-speed signaling channels are disabled, and the outputs keep Hi-Z status.
2) Standby Mode
BU7963GUW goes to Standby Mode when XSD = ‘H’ and PCLK is not provided. All high-speed signaling channel outputs
keep Hi-Z status. BU7963GUW is monitoring whether PCLK input is running or not and the link switches to Active Mode
when PCLK running is detected.
3) Active Mode
BU7963GUW goes to Active Mode when XSD = ‘H’ and PCLK is running. All high-speed signaling channels are enabled.
Power Mode
Shutdown
Standby
Active
XSD
‘L’
‘H’
‘H’
Table 10. Power Modes
Input
PCLK
Static (‘L’ or ‘H’)
Static (‘L’ or ‘H’)
Clock input is active
Operation
Functions
MSDL3 Terminals
Initialized
Disabled (Hi-Z)
PCLK detection
Disabled (Hi-Z)
PCLK detection
Normal operation
Enabled
(P2S conv)
4) Power Modes Transition
Fig.6 shows the transition of power modes.
XSD = ”L”
Shutdown
XSD = ”H”
Standby
PCLK input
stopped
PCLK input
detected
Active
Fig.6. Power Modes Transition
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9/19
2010.04 - Rev.A