LIST OF FIGURES ....................................................................................................................................... 1
LIST OF TABLES ......................................................................................................................................... 1
3.3.1. SYSTEM REQUIREMENTS .............................................................................................................. 7
3.3.2. CD CONTENTS ................................................................................................................................. 7
3.3.3. INSTALLATION OF THE ALP SOFTWARE .................................................................................... 7
3.3.4. INSTALLATION OF THE USB DRIVER ........................................................................................... 8
Table 1: Bill of Materials .............................................................................................................................. 29
Sept2012 DS90UB926QSEVB User’s Guide 1
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1. Introduction
The Texas Instruments DS90UB926QSEVB evaluation kit (EVB) provides an easy way to evaluate the
operation and performance of the DS90UB926Q 2.975Gbps FPD-Link III deserializer.
1.1. Contents of DS90UB926QSEVB
1- DS90UB926Q EVB, 1- CD with ALP software, 1- USB cable
1.2. Highlights of EVB
External 1.8V here*
Apply 3.3V here
ALP
Interface
(for register access)
FPD-Link III
Input
B
3.3V
GND
CMLOUT
Output
Monito
LVCMOS
Outputs
video
LVCMOS
I/Os
GPIOs, I2S
Figure 1: DS90UB926Q EVB
* The default factory configuration is VDDIO = 3.3V. 3.3V does not have to be applied externally. To
interface to 1.8V inputs, 1.8V must applied externally. For VDDIO = 1.8V, move jumper on JP2 to short pins 1
and 2.
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1.3. Operation – Quick Setup
Make sure S1, S2, S3, S4, S5, and JP2 are configured as shown in Figure 1.
1) Turn on the serializer and apply PCLK.
Typically this would be the DS90UB925Q EVB.
2) If interfacing to 3.3V LVCMOS, skip this step, otherwise:
when interfacing to 1.8V LVCMOS inputs (downstream device), move factory jumper from pin-2/3 to pin 1
to connect to pin-1/2 and apply 1.8V power to pin 1 of JP1. This will connect the external 1.8V to the
DS90UB926Q VDDIO, otherwise skip this step.
3) Apply 3.3V power to the DS90UB926Q VDD.
3.3V
4) Look for the green LED2 to light up on the DS90UB926Q EVB. If the green LED is lit and stable, then the
DS90UB926Q is LOCKED to the FPD-Link III serial stream. To be absolutely sure the DS90UB926Q is
locked, use a scope to monitor off JP6 (pin 1 = LOCK, pin 2 = VSS).
CONGRATULATIONS, you are up and running!
If not continue to the next step…
1.4. Trouble Shooting the EVB
1) Check power supply polarity!!! Warning: reverse supply polarity can damage the board.
2) Check to make sure there is sufficient current by checking that the voltage (3.3V) is correct at J6.
3) Check polarity of SER to DES cable interface. e.g. SER DOUT+ is going to RIN+ of DES and vice versa.
4) Check to make sure there is a FPD-Link III signal by probing on both
5) Go back to figure 1 and double check factory settings.
Sept 2012 Literature Number: SNLU114 3
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2. Board Setup Details
This section describes, in detail, the connectors and jumpers on the board as well as how to properly
connect, set up, and use the DS90UB926Q EVB.
2.1. Power Connections
1) Connect ground to J7.
2) Connect an external 3.3V into J6. This is the core voltage of the DS90UB926Q.
3) For VDDIO = 1.8V, connect ground to pin 2 of JP1.
4) Connect an external 1.8V into pin 1 of JP1. This is VDDIO power.
2.2. FPD-Link III Connection
J12, J13 – is the default SMA connector. Apply an FPD-Link III serial stream into J12 and J13. Note: J12
goes to RxIN+, J13 goes to RxIN- of the DS90UB926Q. Typically the serializer will be the DS90UB925Q.
2.3. Factory Set Switch Settings and Jumpers Default Configuration
S1, S2, S3, S4, S5, and JP2 are factory configured as shown in Figure 2 for plug and play operation. For
each of these 3-pin headers JP2, a jumper must be placed as shown.
1)
The S1 switch is factory set as shown below.
The PDB switch is set HIGH and will turn on the DS90UB926Q upon power up.
SW2 is a momentary switch. Instead of toggling switch 1 of S1 to do a PDB toggle, press SW2 to do a
PDB toggle.
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2) The S2 switch is factory set as shown below.
The OEN and OSS_SEL switch are set HIGH and will enable the DS90UB926Q outputs to toggle upon
power up.
3) The S3 and S4 switches are factory set as shown below.
All switches are set HIGH except 58 on S4. This sets IDx address to 58. Note only one switch is allowed
LOW at a time.
8
7
5
4) The S5 switch is factory set as shown below.
All switches are set HIGH except 1. This sets MODE_SEL address to 1. Note only one switch is allowed
LOW at a time.
5) On JP2, a 2-pin jumper is factory placed as shown below.
The jumper sets VDDIO to 3.3V. Note 3.3V does not need to be applied externally.
Figure 2: Factory Switch (S1,S2,S3,S4,S5) and Jumper (JP2) Configuration
2.4. LVCMOS Output Connector Description
J10 – R[7:0], G[7:0], B[7:0], HS, VS, DE, PCLK is the output connector for the DS90UB926Q data outputs.
These are the LVCMOS outputs of the DS90UB926Q, which are the odd numbered pins (left side pins on the
board). The even numbered pins (right side pins on the board) go to pin 2 (labeled “STRAP”) of JP12. The
factory configuration has a jumper resistor R145 that ties the even numbered pins (STRAP) to ground.
J10HEADER 28x 2
12
34
56
78
910
1112
1314
1516
1718
1920
2122
2324
2526
2728
2930
G0
R0
R1
R2
R3
R4
R5
R6
R7
G1
G6
G3B5G2
G5
G4
R145
0ohm
0603
3132
3334
3536
3738
3940
4142
4344
4546
4748
4950
5152
5354
5556
G7
B0
B1
B2
B3
B4
B6
B7
HS
VS
DE
PCLK
VSS
VDD IOc
STRAP
R79
10K
JP12
1
2
3
Sept 2012 Literature Number: SNLU114 5
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3. Appendix – I2C, integrated SPA Dongle
3.1. I2C SPA Dongle Hookup
Connect to PC
with supplied
USB cable
FPD-Link III
Input
B
3.3V
GND
3.2. IDx Board Default Address
The IDx address on the EVB has been preset at 58.
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3.3. ALP Software Setup
3.3.1. System Requirements
Operating System: Windows XP or Vista
USB: 2.0
3.3.2. CD contents
Extract the “ALPF_xxxxxxxx_xxx_xxxx.exe” file to a temporary location that can
be deleted later.
Make sure J4 on the DS90UB926 is connected to a PC USB port with the
supplied USB cable and power is applied to the DS90UB926 EVB
The following installation instructions are for the Windows XP Operating System.
3.3.3. Installation of the ALP software
Execute the ALP Setup Wizard program called “ALPF_monthdayyear_major
version_minor version.exe” that was extracted to a temporary location on the local
drive of your PC.
There are 7 steps to the installation once the setup wizard is started:
1. Select the “Next” button.
2. Select “I accept the agreement” and then select the “Next” button.
3. Select the location to install the ALP software and then select the “Next” button.
4. Select the location for the start menu shortcut and then select the “Next”
button.
5. There will then be a screen that allows the creation of a desktop and Quick
Launch icon. After selecting the desired choices select the “Next” button.
6. Select the “Install” button, and the software will then be installed to the selected
location.
7. Uncheck “Launch Analog LaunchPAD” and select the “Finish” button. The ALP
software will start if “Launch Analog LaunchPAD” is checked, but it will not be
useful until the USB driver is installed.
Connect J4 of the DS90UB926Q EVB board to a PC/laptop with the supplied mini
USB cable. Power the DS90UB926Q EVB board with a 3.3 VDC power supply.
The “Found New Hardware Wizard” will open on the PC/laptop. Proceed to the
next section to install the USB driver.
Sept 2012 Literature Number: SNLU114 7
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3.3.4. Installation of the USB driver
There are 6 steps to install the USB driver:
1. Select “No, not at this time” then select the “Next” button.
2. Select “Install from a list or specific location” then select the “Next” button.
3. Select “Search for the best driver in these locations”. Uncheck “Search
removable media” and check “Include this location in the search”.
4. Browse to the Install Directory which is typically located at “C:\Program
Files\National Semiconductor Corp\Analog LaunchPAD\vx.x.x\Drivers” and
select the “Next” button. Windows should find the driver.
5. Select “Continue Anyway”.
6. Select the “Finish” button.
The software installation is complete. The ALP software may now be launched, as
described in the next section.
3.3.5. Startup - Software Description
Make sure all the software has been installed and the hardware is powered on
and connected to the PC. Execute “Analog LaunchPAD” from the start menu.
The default start menu location is “Programs\National Semiconductor
Corp\Analog LaunchPAD vx.x.x\Analog LaunchPAD”.
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The application should come up in the state shown in the figure below. If it does
not, see “Trouble Shooting” at the end of this document.
Under the Devices tab click on “DS90UB926” to select the device and open up
the device profile and its associated tabs.
Figure 3: Initial ALP Screen
After selecting the DS90UB926, the following screen should appear.
Appears only
when
deserializer is
detected
Sept 2012 Literature Number: SNLU114 9
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Information Tab
The Information tab is shown below. Please note the device revision could be different.
Appears only
when
deserializer is
detected
SER Pattern Generator Tab
The SER Pattern Generator tab is shown below.
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DES Pattern Generator Tab
The DES Pattern Generator tab is shown below.
Registers Tab
The Registers tab is shown below.
Sept 2012 Literature Number: SNLU114 11
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