CXD2443Q Datasheet, PDF (12/57 Pages) Sony Corporation – Timing Generator for LCD Panels

CXD2443Q
Input Signal Protocol
1. Horizontal sync signal
• A double-speed HSYNC or standard HSYNC (or CSYNC) should be input for NTSC and PAL display modes.
Double-speed HSYNC and standard HSYNC input switching is set by the serial data (SNSL).
Note) The double-speed HSYNC should have a cycle and width 1/2 that of the standard HSYNC.
• The signal obtained by cutting off only the bottom of the ternary SYNC should be input for HD display mode.
• The input sync signal polarity is not fixed, and is set by the serial data (HPOL).
• When using the built-in line double-speed controller, set serial data SNSL to Low. The built-in line double-
speed controller supports only the standard HSYNC (or CSYNC).
2. Vertical sync signal
• A normal-speed VSYNC (or CSYNC) should be input for NTSC and PAL display modes.
• A VSYNC that has been sync separated by SYNC SEP. should be input for HD display mode.
• The input sync signal polarity is not fixed, and is set by the serial data (VPOL).
• The phase relationship between HSYNC and VSYNC is specified as follows for the CXD2443Q.
(1) Double-speed NTSC
Double-speed HSYNC
VSYNC ^{Sync signal phase}
reference
(2) Double-speed PAL
Double-speed HSYNC
VSYNC ^{Sync signal phase}
reference
(3) NTSC (CSYNC input)
ODD FIELD
CSYNC
EVEN FIELD
CSYNC
Sync signal phase reference
(4) PAL (CSYNC input)
ODD FIELD
CSYNC
EVEN FIELD
CSYNC
Sync signal phase reference
(5) HD
ODD FIELD
HSYNC
VSYNC
EVEN FIELD
HSYNC
Sync signal phase
reference
VSYNC
Sync signal phase
reference
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