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PIN SIGNAL PIN SIGNAL
1 TMDS Data 2- 16 Hot Plug Detect
2 TMDS Data 2+ 17 TMDS Data 0-
3 TMDS 2&4 Shield 18 TMDS Data 0+
4 TMDS Data 4- (NA) 19 TMDS 0&5 Shield
5 TMDS Data 4+ (NA) 20 TMDS Data 5- (NA)
6 DDC Clock 21 TMDS Data 5+ (NA)
7 DDC Data 22 TMDS Clock Shield
8 Analog Vertical Sync (NA) 23 TMDS Clock+
9 TMDS Data 1- 24 TMDS Clock-
10 TMDS Data 1+ C1 Analog Red (NA)
11 TMDS 1&3 Shield C2 Analog Green (NA)
12 TMDS Data 3- (NA) C3 Analog Blue (NA)
13 TMDS Data 3+ (NA) C4 Analog Horizontal Sync (NA)
14 +5.0 VDC C5 Analog Ground (NA)
15 Ground
Table 6
(NA) Not used by MonitorLink
MonitorLink DVI Connector
Some manufacturers use DVI-I connectors for DVI-
D only. This is the arrangement used by
MonitorLink. This configuration will not support
analog connections. Therefore, any attempt to in-
terface analog signals, no matter what form of DVI-
A or DVI-I cables or adaptors used, will not be suc-
cessful. Looking at the pin assignments in Table 6,
it should become obvious, the DVI-I connector used
by MonitorLink is a digital only, single-link TMDS
interface.
NOTE: V23 models are compliant with HDCP
and EIA861 standards for standard, extended
and high definition (480i, 480p, 1080i) video.
The DVI input is not intended for use with
personal computers or devices outputing video
signals with computer resolution.
DVI Input Block Diagram
Figure 13 is a block diagram of the DVI input cir-
cuitry used on the V23 Chassis. The circuitry will
be similar in other models.
Single-link TMDS Data and Clock signals are ap-
plied directly to IC2D00. Vcc for the EEPROM,
IC7AAA, is supplied by the host device via the DVI
connector, pin 14. At the same time, this potential is
fed back to pin 16 for Hot Plug Detection. The host
device communicates over the DDC bus directly with
the EEPROM to retrieve the EDID. IC2D02 is used
to convert the 5V I
2
C to 3.3V logic for compatibility
with IC2D00 where HDCP data is exchanged.
IC2D00 decodes and outputs analog RGB/H/V sig-
nals for selection by the TV input select circuitry.
Firewire is a trademark of Apple Computer, Inc.
DVI is a trademark of the Digital Display Working Group.
VESA, DDC and EDID are trademarks of the Video Electronics Standard
Association.
TMDS is a trademark of Silicone Image, Inc.
HDCP is a trademark of Digital Content Protection, LLC.