No. 7023-2/14
LC74982W
I/O Specifications
Input Signal Overview
Signal type Pin No. Pin Description Notes
6 to 13 YIN7 to 0
Y/Y/R
54 to 61 RIN7 to 0
Video signals
16 to 23 UIN7 to 0
C/Cb/G
64 to 71 GIN7 to 0
26 to 33 VIN7 to 0
–/Cr/B
74 to 81 BIN7 to 0
90 HITV NTSC/PAL horizontal sync signal
91 VITV NTSC/PAL vertical sync signal
Sync signals
92 HIDTV DTV horizontal sync signal
93 VIDTV DTV vertical sync signal
94 HIPC PC horizontal sync signal
95 VIPC PC vertical sync signal
96 BLKIH Horizontal enable
Data enable signals
97 BLKIV Vertical enable
36 CLKITV NTSC/PAL clock
Pixel clocks
39 CLKIDTV DTV clock
42 CLKIPC PC clock
167 XTAL Display clock
• NTSC, PAL, and DTV (480i and 480p) inputs
YCbCr signals conform to the CCIR 601 standard.
The YC C signal is a multiplexed CbCr signal
(4:2:2).
• PC input (up to XGA)
• Three independent systems for both horizontal
and vertical sync signals
• Any input polarity may be used. Internal
automatic-discrimination.
• Input with the same logic. The polarity can be
inverted internally.
• A composite video signal can be input to BLKIH.
(BLKIV must be tied high in this case.)
• Three independent input systems
• Fixed frequency crystal oscillator (65 MHz maximum)
Output Signal Overview
Signal type Pin No. Pin Description Notes
106 to 111 ROEVEN5 to 0 Even pixels, red
114 to 119 GOEVEN5 to 0 Even pixels, green
Video signals 122 to 127 BOEVEN5 to 0 Even pixels, blue
in 6-bit output mode 130 to 135 ROODD5 to 0 Odd pixels, red
138 to 143 GOODD5 to 0 Odd pixels, green
146 to 151 BOODD5 to 0 Odd pixels, blue
106 to 111,
ROEVEN7 to 0 Even pixels, red
114, 115
116 to 119,
GOEVEN7 to 0 Even pixels, green
122 to 125
Video signals 126, 127,
BOEVEN7 to 0 Even pixels, blue
in 8-bit output mode 130 to 135
138 to 143,
ROODD7 to 0 Odd pixels, red
146, 147
182 to 189 GOODD7 to 0 Odd pixels, green
192 to 199 BOODD7 to 0 Odd pixels, blue
Sync signals
162 HOUT Horizontal sync signal
163 VOUT Vertical sync signal
Data enable signals
102 BLKHOUT Horizontal enable
103 BLKVOUT Vertical enable
154 DCLK1 Single-phase clock
Pixel clocks
155 DCLK1B Single-phase clock (inverted)
158 DCLK2 Two-phase clock
159 DCLK2B Two-phase clock (inverted)
• Each of the RGB channels is an 6-bit 2-phase
signal.
• The output mode can be switched to single-phase
output mode.
(Output from the ODD pin)
• Each of the RGB channels is an 8-bit 2-phase
signal.
• The output mode can be switched to single-phase
output mode.
(Output from the ODD pin)
• The sync period, position, and polarity can be set.
•
A composite sync signal can be output from VOUT.
• Outputs the same frequency as that of the crystal
oscillator.
• The enable period and the polarity can be set.
•
A composite signal can be output from BLKVOUT.
• Outputs a frequency 1/2 that of the crystal
oscillator.