SN75DP118
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................................................................................................................................................ SLLS916B – SEPTEMBER 2008 – REVISED APRIL 2009
PIN FUNCTIONS
PIN
I/O DESCRIPTION
SIGNAL NO.
MAIN LINK INPUT PINS
ML_IN 0 34, 35 I DisplayPort Main Link Channel 0 Differential Input
ML_IN 1 2, 3 I DisplayPort Main Link Channel 1 Differential Input
ML_IN 2 5, 6 I DisplayPort Main Link Channel 2 Differential Input
ML_IN 3 8, 9 I DisplayPort Main Link Channel 3 Differential Input
MAIN LINK OUTPUT PINS
ML_OUT 0 30, 29 O DisplayPort Main Link Port A Channel 0 Differential Output
ML_OUT 1 26, 25 O DisplayPort Main Link Port A Channel 1 Differential Output
ML_OUT 2 23, 22 O DisplayPort Main Link Port A Channel 2 Differential Output
ML_OUT 3 20, 19 O DisplayPort Main Link Port A Channel 3 Differential Output
HOT PLUG DETECT PINS0
HPD_OUT 11 O Hot Plug Detect Output to the DisplayPort Source
HPD_ IN 15 I Hot Plug Detect Input from the DisplayPort Connector
CABLE ADAPTER DETECT PINS
CAD _OUT 12 O Cable Adapter Detect Output to the DisplayPort Source
CAD _ IN 14 I Cable Adapter Detect Input from the DisplayPort Connector
CONTROL PINS
LP 33 I Low Power Select Bar
CAD_INV 31 I Output Port Priority selection
DP
adj
17 I DisplayPort Main Link Output Gain Adjustment
NC 16 Not Connected
SUPPLY AND GROUND PINS
VCC 4, 16, 24, 28, 36 Primary Supply Voltage
VDD 10 HPD and CAD Output Voltage
GND 1, 7, 13, 21, 27, 32 Ground
Table 1. Control Pin Lookup
SIGNAL LEVEL
(1)
STATE DESCRIPTION
H Normal Mode Normal operational mode for device
LP
Device is forced into a Low Power state causing the outputs to go to a high impedance
L Low Power Mode
state, All other inputs are ignored.
H CAD Inverted The CAD output logic is inverted from the CAD input
CAD_INV
L CAD not Inverted The CAD output logic follows the CAD input
4.53 k Ω Increased Gain Main Link DisplayPort Output will have an increased voltage swing
DP
adj
6.49 k Ω Nominal Gain Main Link DisplayPort Output will have a nominal voltage swing
10 k Ω Decreased Gain Main Link DisplayPort Output will have a decreased voltage swing
(1) (H) Logic High; (L) Logic Low
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