DS90UH949-Q1 Datasheet, PDF (32/87 Pages) Texas Instruments – 1080p HDMI to FPD-Link III Bridge Serializer with HDCP

DS90UH949-Q1
SNLS453 – NOVEMBER 2014
www.ti.com
Device Functional Modes (continued)
Table 6. MODE_SEL[1:0] Settings
Mode
EDID_SEL: Display ID Select
AUTO-SS: Auto Sleep-State
AUX_I2S: AUX Audio Channel
EXT_CTL: External Controller
Override
COAX: Cable Type
REM_EDID_LOAD: Remote
EDID Load
Setting
0
1
0
1
0
1
0
1
0
1
0
1
Function
Look for remote EDID, if none found, use internal SRAM EDID. Can be overridden
from register. Remote EDID address may be overridden from default 0xA0.
Use external local EDID.
Disable.
Enable.
HDMI audio.
HDMI + AUX audio channel.
Internal HDCP/HDMI control.
External HDCP/HDMI control from I2C interface pins.
Enable FPD-Link III for twisted pair cabling.
Enable FPD-Link III for coaxial cabling.
Use internal SRAM EDID.
If available, remote EDID is copied into internal SRAM EDID.
1.8V
R₃
VR4
1.8V
R₄
R5
VR6
R₆
MODE_SEL0
MODE_SEL1
Serializer
Figure 20. MODE_SEL[1:0] Connection Diagram
#
Ratio
V_R4/V_DD18
1
0
2
0.208
3
0.323
4
0.440
5
0.553
6
0.668
7
0.789
8
1
#
Ratio
V_R6/V_DD18
1
0
2
0.208
3
0.323
4
0.440
Target V_R4
(V)
0
0.374
0.582
0.792
0.995
1.202
1.420
1.8
Table 7. Configuration Select (MODE_SEL0)
Suggested
Resistor Pull-Up
R3 kΩ (1% tol)
Suggested
Resistor Pull-
Down R4 kΩ (1%
tol)
OPEN
40.2
118
30.9
107
51.1
113
88.7
82.5
102
68.1
137
56.2
210
13.3
OPEN
EDID_SEL
0
0
0
0
1
1
1
1
AUTO_SS
0
0
1
1
0
0
1
1
Target V_R6
(V)
0
0.374
0.582
0.792
Table 8. Configuration Select (MODE_SEL1)
Suggested
Resistor Pull-Up
R5 kΩ (1% tol)
Suggested
Resistor Pull-
Down R6 kΩ (1%
tol)
OPEN
40.2
118
30.9
107
51.1
113
88.7
EXT_CTL
0
0
0
0
COAX
0
0
1
1
AUX_I2S
0
1
0
1
0
1
0
1
REM_EDID_LOA
D
0
1
0
1
32
Submit Documentation Feedback
Product Folder Links: DS90UH949-Q1
Copyright © 2014, Texas Instruments Incorporated