This document describes how to use and configure the TDP158RSBEVM and provides recommendations
for system hardware implementation. These recommendations are only guidelines and it is the designer’s
responsibility to consider all system characteristics and requirements. Refer to the TDP158 data sheet
(SLLSEX2) for technical details such as device operation, terminal description, and so forth.
5Bill of Materials ............................................................................................................. 11
Trademarks
Aardvark is a trademark of Total Phase, Inc..
All other trademarks are the property of their respective owners.
1Overview
1.1What is the TDP158?
The TDP158 is a DisplayPort to Transition Minimized Differential Signal (TMDS) redriver supporting Digital
Video Interface (DVI) 1.0 and High Definition Multimedia Interface (HDMI) 1.4b and 2.0 output signals.
The TDP158 supports the Dual Mode Standard version 1.1 type 1 and type 2 through the DDC link. The
TDP158 supports a data rate of up to 6Gbps per data lane to support UltraHD (4K×2K/60Hz) 8-bits per
color high-resolution video and HDTV with 16-bit color depth at 1080p (1920×1080/60Hz).
1.2What is the TDP158 EVM?
The TDP158 EVM is a PCB created to help customers evaluate the TDP158 device for video applications.
This EVM can also be used as a hardware reference design for implementation of the TDP158 in the RSB
package. PCB design and layout files can be provided upon request to provide PCB design illustrations of
the routing and placement rules. Figure 1 is a picture of the EVM.
•I2C programming interface for external I2C host connection
•USB interface (utility available)
2Hardware Description
Figure 2 illustrates the EVM block diagram.
Hardware Description
2.1Video Connectors for TDP158 Ports
The EVM has a DP connection for the source and an HDMI connection for the sink. J2 is a standard DP
connector (Molex 47272-0001). J4 is a standard HDMI connector (Molex 4715-10001). There is a third
video connection on the board for an HDMI source (J1), this function is not supported on the TDP158RSB
EVM.
2.2Local I2C Access
Access to the local I2C signals on the TDP158 is provided via input connector J18. Note that the I2C signal
levels should be at 3.3 V when the I2C interface is accessed through the connector.
A standalone external I2C host can be connected via J18 for debug and control purposes. An example of
an external I2C Host controller is the Total Phase Aardvark™ I2C/SPI Host Adapter (Total Phase Part#:
TP240141). Sample scripts for this I2C Host controller are provided by request.
NOTE: The target I2C address for the TDP158 can be modified with the EVM jumper settings.
2.3Enable and Reset
There are three device enable and reset options to use with the EVM.
A. Supervisor circuitry option
This is the default configuration on the TDP158 EVM. The enable (EN) signal is held low until the
power good (PG) from the 3.3-V voltage regulator reaches a stable high-voltage level then is released
high.
B. RC timing option
The C35 external capacitor and internal resistor are used to control the EN ramp time after the device
is powered on. The C35 is a DNI (Do Not Install option) by default. The C35 needs to be installed and
R70 needs to be uninstalled to enable this option.
C. External control option
A push button (SW1) is provided for manual control of the EN and OE input of the TDP158.
Table 1. Aardvark I2C (J18) Pin-Out
J18 Pin #DescriptionJ18 Pin #Description
1SCL_CTL2GND
3SDA_CTL4NC
5NC6NC
7NC8NC
9NC10GND
Table 2. TDP158 Target I2C Address
TDP158 I2C Target Address
Bit 5
A4
Bit 4
A3
7 Bit Address = 5Eh
Bit 3
A2
Bit 2
A1
Bit 1
A0
www.ti.com
Bit 0 (W/R)
2.4Power
A DC power jack (J13) to accept a 5-V wall power adapter is provided on the EVM. The DC power jack
(CUI Inc. PJ-202AH) has an inner diameter of 2.1 mm and an outer diameter of 5.5 mm. The tip of the 5-V
power supply must be positive. A 5-V power supply of at least 1.5 A that meets the stated requirements
can be used to power the TDP158RSBEVM. Power is provided to the EVM when SW1 is set to
position 1.
Do not plug in any power source higher than the configured voltage (5 V).
Alternately, it is possible to power the EVM by connecting a USB micro cable to a host and setting SW1 to
position 3. Note that this usage may exceed USB compliance requirements for power consumption.
Jumpers are provided to operate the device and EVM in different configurations, see Table 3.
DIP SW NoSignal NameDescriptionDefault Config
J3HPD_SNKJP 2–3 for external HPD
JP 2–1 for board_5V
J5PREJP 1–2 for 3 db
JP 2–3 for 0 db
When I2C_EN is low
J6SWAPJP 1–2 for SWAP
JP 2–3 for Normal
When I2C_EN is low
J7I2C_ENJP 1–2 for I2C_EN = High; Puts Device into I2C Control Mode
JP 2–3 for I2C_EN = Low; Puts Device into Pin Strap Mode
J8TERMJP 1–2 for 75–150 Ω
JP 2–3 for 150–300 Ω
NC; no termination
J9VSADJJP 1–2 for 5.5 kΩ
JP 2–3 for adjustable resistance (6 kΩ)
NC – N/A
J10EQ1_SEL_A0JP 1–2 for:
• tabI2C Addr bit A0 = 1, when I2C_EN = H
• tabFixed EQ at 14 dB @ 3G, when I2C_EN = L
JP 2–3 for:
• tabI2C Addr bit A0 = 0, when I2C_EN = H
• tabFixed EQ at 7.5 dB @ 3G, when I2C_EN = L
NC for Adaptive EQ
J11EQ2_SEL_A1JP 1–2 for:
• tabI2C Addr bit A0 = 1, when I2C_EN = H
• tabFixed EQ at 14 dB @ 3G, when I2C_EN = L
JP 2–3 for:
• tabI2C Addr bit A0 = 0, when I2C_EN = H
• tabFixed EQ at 7.5 dB @ 3G, when I2C_EN = L
NC for Adaptive EQ
J12SLEWJP 1–2 for fast
JP 2–3 for slowest
NC for mid range
Hardware Description
Table 3. SW1 DIP Switch Setting
JP 2–3
JP 2–3
JP 2–3
JP 2–3
Puts Device into Pin Strap Mode
NC
Note: When TMDS_CLOCK_RATIO_STATUS
bit = 1, the TDP158 automatically sets source
termination at 75 Ω to 150 Ω.
JP 2–3
The default value is 6 kΩ on early EVMs (prior to
revision B)
NC
NC
NC
2.6Component Population Configuration
To allow the TDP158 EVM to support both HDMI or DP input, there are many components that need to be
removed, placed, or modified depending on the board configuration. Table 4 provides a summary of the
component configuration for the TDP158 RSB. In addition, the unused source receptacle can be
depopulated.
To accommodate systems that do not properly resend DDC commands after HPD goes low, TI has
implemented an DDC snoop mode on the TDP158RSB EVM. This mode allows the HPD line to be routed
around the TDP158, but remain connected to the TDP158 on the sink side to allow the TDP158 to snoop
its state. This snoop mode is disabled, by default, on the TDP158RSB EVMs.
•Pop R22, R23, no pop R19, R20, R12, R13 for HDMI, DDC snoop
•Pop R24, R25, no pop R38, R39, R29, R30 for DP, DDC snoop
•Pop R19, R20, R12, R13, no pop R22, R23 for HDMI, DDC on
•Pop R38, R39, R29, R30, no pop R24, R25 for DP, DDC on
2.6.2HPD Snoop Option
Not available for the TDP158RSB EVM.
2.7USB Interface via TUSB3410
Use the following settings for USB interface via TUSB3410:
•J19 must be set to SDA – SDA_USB
•J17 must be set to SCL – SCL_USB
•Attached USB micro cable to J16 and to the host computer
•Start the Eye Scan Tool software. Refer to the EyesScan Tool User's Guide (SLUUBK2) for details.
www.ti.com
3Quick Start Guide
Use the following steps for quick-start procedures:
1. Apply 5-V power to the EVM, turn on SW1. LED D1 should light up.
2. If using external I2C adapter instead of pin straps, configure the TDP158 at this step.
3. Plug in a DP source using a standard DP cable into J2 (Standard DP connector).
4. Plug in an HDMI video sink device into J4 (Standard HDMI connector) using a standard HDMI cable.
This section contains the schematics and bill of materials for the EVM.
4.1Schematic
Figure 3 through Figure 6 illustrates the EVM schematics.
Figure 3. TDP158RSBEVM Schematics (1 of 4) - Input Connectors
SDA_CTL and SCL_CTL are configuration
inputs when I2C_ EN is low. J5 and J6 will set
the values of these pins a nd J17 and J19
should not be populated .
221 J132.1mm x 5.5mmPJ-202AHCUI Inc.PJ-202AH (PJ-002AH)2.1mm x 5.5mmCONN PWR JACK 2.1X5.5MM HIGH CUR
231 J16USB Micro BUSBMicro BFCI10103592-0001LFUSB MICROCONN RCPT REV MICRO USB B R/A
2410 LP1,LP2,LP3,LP4,LP5,L
P6,LP7,LP8,LP9,LP10
LPTESTLOOPKeystone Electronics5006THRUTESTPOINT PC COMPACT .063"D BLK
251 L12.2 uH1008TDKVLS252010ET-2R2M1008INDUCTOR POWER 2.2UH 1.3A SMD
261 L21 uH1008TDKNLCV25T-1R0M-EFR1008INDUCTOR POWER 1.0UH 1008
272 J1,J4HDMICON_HDMI_RT_19_0p50mmMolex471510001CON_HDMI_RT_19_0p5
Request the latest scripts from your TI representative.
7References
1. TDP158 6-Gbps AC-Coupled to TMDS™/HDMI™ Redriver
2. Aardvark™ Adapter User Manual
3. High-Definition Multimedia Interface Specification Version 1.4b.
4. High-Definition Multimedia Interface Specification Version 2.0.
Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Original (February 2017) to A Revision .................................................................................................. Page
•Changed the EVM Figure 1.............................................................................................................. 2
•Corrected Reference Designators column in Table 4 ................................................................................ 5
•Corrected TPD158 coulmn resistor values in Table 4................................................................................ 5
•Changed the Section 2.6.1............................................................................................................... 6
•Changed the Section 2.6.2............................................................................................................... 6
•Changed From: TDP158 product preview To: the production datasheet in Section 7 ......................................... 16
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Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et
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