JAJSG74C February 2012 – September 2018 DS90C187
PRODUCTION DATA.
The DS90C187's LVDS drivers are compatible with ANSI/TIA/EIA-644-A LVDS receivers. The LVDS drivers can output a power saving low VOD, or a high VOD to enable longer trace and cable lengths by configuring the VODSEL pin.
VODSEL | Result |
---|---|
0 | ±220 mV (440 mVpp) |
1 | ±340 mV (680 mVpp) |
Any unused LVDS outputs that are not powered down or put into TRI-STATE® due to the MODE0, MODE1, or 18B pins should be externally terminated differentially with a 100 ohm resistor. For example, when driving a timing controller (TCON) that only requires an 8D + C LVDS interface, rather than 8D + 2C, the unused clock line should be terminated near the package of the DS90C187. For more information regarding the output state of unused LVDS drivers, refer to the next section, 18 bit / 24 bit Color Mode (18B). For more information regarding the electrical characteristics of the LVDS outputs, refer to the LVDS DC Characteristics and LVDS Switching Specifications.