GM5115 Datasheet, PDF (29/58 Pages) List of Unclassifed Manufacturers – ONPANEL LCD PANEL CONTROLLER

*** Genesis Microchip Confidential ***
gm5115/25 Preliminary Data Sheet
4.4 Ultra-Reliable Digital Visual Receiver (DVI Rx)
The Ultra-Reliable DVI^TM receiver block of the gm5115/25 is compliant with DVI1.0 single link
specifications. Digital Visual Interface (DVI) is a standard that uses Transition Minimized
Differential Signaling protocol (TMDS). This block supports an input clock frequency ranging
from 20 MHz to 165 MHz.
4.4.1 DVI Receiver Characteristics
Table 16 summarizes the characteristics of the four Receiver Pair inputs. Please note that it is
very important to follow the recommended layout guidelines for these signals. These are
described in "gm5115/25 Layout Guidelines" document number C5115-SLG-01A.
Table 16. DVI Receiver Characteristics
MIN
TYP
MAX
DC Characteristics
Differential Input Voltage
Input Common Mode Voltage
Behavior when Transmitter Disable
Input clock frequency
Input differential sensitivity (Peak-to-peak)
Max differential input (peak-to-peak)
Allowable Intra-Pair skew at Receiver
Allowable Inter-Pair skew at Receiver
Worst case differential input clock jitter
tolerance
150mV
AVDD
–300m V
AVDD
-10mV
AC Characteristics
20 MHz
150mV
1200mV
AVDD
-37mV
AVDD
+10mV
165 MHz
1560 mV
250 ps
4.0 ns
188 ps
NOTE
Input clock = 160 MHz
Note that input formats with resolutions or refresh rates higher than that supported by the LCD
panel are supported as recovery modes only. This is called RealRecovery™. For example, it may
be necessary to shrink the image. This may introduce image artifacts. However, the image is
clear enough to allow the user to change the display properties.
Through register programming, the receiver unit may be placed in one of three states:
• Active: The receiver block is fully on and running.
• Standby: Only the RC (clock) channel remains active. Data and other control signals are not
decoded.
• Off: The receiver block is powered down.
June 2002
20
C5115-DAT-01H