SN65DP159_15 Datasheet, PDF (43/63 Pages) Texas Instruments – SNx5DP159 6 Gbps DP++ to HDMI Retimer

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SN65DP159, SN75DP159
SLLSEJ2A – JULY 2015 – REVISED AUGUST 2015
Application Information (continued)
Figure 30 shows the original connection of SNx5DP159 on mother board through the DDC channel. The DDC
DR default is 100 kHz and is capable to adjust to 400 kHz.
SNx5DP159RGZ
ML0p
0.1uF
2 _{IN_D2p}
35
OUT_D2p
ML0n
0.1uF
3 _{IN_D2n}
OUT_D2n ³⁴
ML1p
0.1uF
5 _{IN_D1p}
32
OUT_D1p
ML1n
0.1uF
6 _{IN_D1n}
31
OUT_D1n
ML2p
0.1uF
8 _{IN_D0p}
29
OUT_D0p
ML2n
0.1uF
9 _{IN_D0n}
28
OUT_D0n
ML3p
0.1uF
11 _{IN_CLKp}
OUT_CLKp ²⁶
ML3n
HPD
DDC_SCL
DDC_SDA
0.1uF
12
4
VCC_3.3V
2<3
2<3
46
Note 1 ₄₇
IN_CLKn
HPD_SRC
SCL_SRC
SDA_SRC
OUT_CLKn
SCL_SNK
SDA_SNK
HPD_SNK
25
5V
CEC
2<3 _2<3
38
39 Note 1
33
VCC_3.3V
17 NC
AUXp
AUXn
0.1uF
0.1uF
45
AUX_SRCp
44
AUX_SRCn
65l3
1
SWAP/POL
7
GND
I2C_EN/PIN ¹⁰
VCC_3.3V
19
GND
20
PRE_SEL
30
GND
21
EQ_SEL/A0
100<3
CAD_DET
2<3
I2C_SCL
I2C_SDA
2<3
15
SCL_CTL
16 _{SDA_CTL}
27
HDMI_SEL/A1
TX_TERM_CTL ³⁶
SLEW_CTL ⁴⁰
HDMI/DVI
Receptacle
1 _{TMDS_D2p}
2
GND1
3 _{TMDS_D2n}
5
GND2
4 _{TMDS_D1p}
8
GND3
6
11
TMDS_D1n GND4
7
14
TMDS_D0p GND5
9
17
TMDS_D0n GND6
10
TMDS_CLKp
12
TMDS_CLKn
13
CEC
20
CASE_GND1
15
21
DDC_SCL CASE_GND2
16
22
DDC_SDA CASE_GND3
19
HPD
23
CASE_GND4
65l3
0.01uF
1D3
VCC_3.3V
0.1uF 0.1uF 10uF
Optional
42
OE
0.1uF
22
VSADJ
CEC
CEC
7<3
1%
65l3
65l3
13
VCC
43
VCC
VCC_3.3V
VDD_1.1V
0.1uF 0.1uF 0.1uF 0.1uF 0.01uF 0.01uF ^10uF
14 23 24 37 48 41
VDD_1.1V
Note 1: For applications where the GPU or Sink does not support clock stretching the DDC lines from the GPU/DP TX should bypass the SCL_SRC and SDA_SRC
but still connect to the SCL_SNK and SDA_SNK pins on the DP159. Note that if the GPU/DP TX cannot support the 5V DDC lines from the connector, a level
shifter is needed to step down the 5V signals to the voltage level the GPU/DP TX can support.
Figure 31. Implementation for Mother Board 2
Figure 31 shows the connection for both DDC and AUX GPU connections with the SNx5DP159RGZ. Only one
can be implemented at a time. Only RGZ package supports the I²C-over-AUX implementation. The control pin
pull up and pull down resistors are shown for reference. If a high is needed only use the pull up. If a low is
needed only use the pull down. If mid level is to be selected do not use either resistors and leave the pin
floating/No connect.
Copyright © 2015, Texas Instruments Incorporated
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