User’s Guide
SNLU108 – July 2012
SERDESUB-16OVT EVM User’s Guide
TABLE OF CONTENTS
TABLE OF CONTENTS.................................................................................................. 1
1.
DESCRIPTION......................................................................................................... 2
2.
KIT CONTENTS....................................................................................................... 3
3.
SYSTEM REQUIREMENTS .................................................................................... 3
4.
SETUP INSTRUCTIONS ......................................................................................... 4
5.
BLOCK DIAGRAMS................................................................................................ 5
6.
OPERATION............................................................................................................ 6
7.
BOM (BILL OF MATERIALS).................................................................................. 8
8.
APPENDIX............................................................................................................. 10
Serializer and Deserializer PCB Schematics......................................................... 10
SNLU108 – July 2012
SERDESUB-16OVT EVM User’s Guide
1
Description
1. DESCRIPTION
The SERDESUB-16OVT is an evaluation kit designed to demonstrate performance and
capabilities of the DS90UB901Q and DS90UB902Q FPD-Link III Serializer/Deserializer
Chipset for use with the OmniVision sensors. This serves as an add-on to the
OmniVision development systems by providing a serialized digital interface between
camera and controller. The chipset enables transmission of a high-speed video data
along with a low latency bi-directional control bus simultaneously over a single twisted
pair cable. The bidirectional control channel of the DS90UB901Q/902Q provides
seamless communication between the camera and Host Controller.
The Serializer board provides LVCMOS inputs and a bidirectional control channel (I2C
compatible) from the Image Sensor and is converted to a FPD-Link III LVDS data pair
on the DS90UB901Q Tx board. The DS90UB902Q Rx board receives the FPD-Link III
LVDS serialized data stream and converts it back into parallel LVCMOS signals and
clock together with the bidirectional control channel (I2C). The Host Controller
processes the video data from the image sensor and shows it on a display.
This manual is intended for developers who want a convenient way to begin system
development. It is assumed that the reader has a basic understanding of digital video
and still capturing concepts.
2
SERDESUB-16OVT EVM User’s Guide
SNLU108 – July 2012
Kit Contents
2. KIT CONTENTS
o One SERDESUB-16OVT Serializer Board with the DS90UB901Q
o One SERDESUB-16OVT Deserializer Board with the DS90UB902Q
3. SYSTEM REQUIREMENTS
The following items are required in order to use the SERDESUB-16OVT EVM kit:
o OmniVision camera sensor module
− OV10620, OV7710, OV9715
o Host Controller with I2C interface bus (I2C master)
− FPGA, Electronic Control Unit (ECU), Video Processor, Microcontroller
− Slave clock stretching must be supported by the I2C master controller
o CAT6 cable
o External +5VDC 1A Power Supply
SER
DES
+5VDC
OVT
Sensor
Figure 1: Imager Sensor – Serializer and Deserializer Board Connections
SNLU108 – July 2012
SERDESUB-16OVT EVM User’s Guide
3
Setup Instructions
4. SETUP INSTRUCTIONS
1. Connect the DS90UB901Q Serializer board to the Omnivision module via the J1
32-pin header (16 x 2 x 0.1"). Ensure that the camera module and the Serializer
board are connected properly by matching the ground (GND) pins.
2. Connect the DS90UB902Q Deserializer board to the Host Controller.
3. Connect the DS90UB901Q Serializer board to the DS90UB902Q Deserializer
board via CAT6 cable on the RJ45 connectors.
4. Apply 5V power supply to the Deserializer board J10 power jack.
5. Push “ON” button (S4) on Deserializer board. Green light should now be visible
on RJ45 connectors at Serializer (J4) board and Deserializer (J7) board to
indicate power is applied to the boards.
6. Initialize the Deserializer. Refer to the DS90UB901Q/902Q datasheet for startup
procedure and the definition of each register.
7. Verify that LOCK LED on D5 and the RJ45 orange lights are lit. This indicates the
chipset is Locked and ready to begin I2C communication with the image sensor.
8. Initialize the OmniVision image sensor. Refer to the appropriate sensor
datasheet for specific information.
9. Start video capture (or alternate control application).
4
SERDESUB-16OVT EVM User’s Guide
SNLU108 – July 2012
Block Diagrams
5. BLOCK DIAGRAMS
RJ45
Figure 2. Serializer Board Block Diagram
12V
5V
LP2992
1.8
LP38693
ADJ
RJ45
I2C
2
/
DS90UB902Q
16x2
Header
PCLK, D0-D9
HS, VS
To Processor
LM22671
5.0
SERDESUB-16OVT Deserializer
Figure 3. Deserializer Board Block Diagram
SNLU108 – July 2012
SERDESUB-16OVT EVM User’s Guide
5
Operation
6. OPERATION
This section describes how to I2C instructions between Host and image sensor through
the DS90UB902Q and DS90UB901Q pair function in a camera system application.
Figure 4 shows the configuration of evaluation boards for I2C communication with a
Host controller. Note a Host controller requires an I2C interface with slave clock
stretching support.
In Camera mode, I2C transactions originate from the Master controller at the
Deserializer side (Figure 4). The I2C slave core in the Deserializer will detect if a
transaction is intended for the Serializer or the camera sensor (slave device) at the
Serializer. Commands are sent over the bidirectional control channel to initiate the
transactions. The Serializer will receive the command and generate an I2C transaction
on its local I2C bus. At the same time, the Serializer will capture the response on the
I2C bus and return the response on the high speed forward channel. The Deserializer
parses the response and passes the appropriate response onto the Deserializer I2C
bus.
Figure 4. Typical System Block Diagram
6
SERDESUB-16OVT EVM User’s Guide
SNLU108 – July 2012
Operation
TROUBLESHOOTING CHART
Problem…
No image
Solution…
Check that RJ45 green lights are on
No green light on RJ45
connectors
Check that 5V power supply is applied, and CAT
cable connection is good
All lights on, but no image
Cycle “ON” button on Deserializer
board
Check that orientation of board
connections is correct
No image
Check that lens cap is removed from
camera
Power, ground, input data and
input clock are connected
correctly, but no outputs.
Check the Power Down pins of both Serializer and
Deserializer boards to make sure that the devices are
enabled (PDB=Vdd) for operation.
SNLU108 – July 2012
SERDESUB-16OVT EVM User’s Guide
7
Bill of Materials
7. BOM (BILL OF MATERIALS)
Item
Quantity Reference
Part
PCB Footprint
______________________________________________________________________________________
8
1
2
3
4
5
6
1
1
5
2
3
9
7
8
1
14
9
25
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
2
1
1
1
1
1
1
2
4
1
1
2
1
1
2
1
2
1
3
1
1
1
11
33
34
35
36
1
1
2
1
C1
C2
C3,C4,C5,C28,C29
C6,C30
C7,C35,C52
C8,C16,C18,C57,C59,C70,
C72,C73,C75
C9
C10,C11,C13,C19,C20,C22,
C24,C31,C32,C36,C38,C43,
C47,C60
C12,C14,C15,C17,C21,C23,
C25,C33,C37,C39,C44,C45,
C46,C48,C51,C53,C55,C56,
C58,C61,C63,C64,C69,C71,
C74
C26,C27
C34
C40
C41
C42
C49
C50
C54,C62
C65,C66,C67,C68
D1
D2
D3,D4
D5
J1
J2,J6
J3
J4,J7
J5
J8,J9,J11
J10
L1
L2
L3,L4,L5,L6,L7,L8,L9,L10,
L11,L12,L13
P1
P2
Q1,Q2
Q3
SERDESUB-16OVT EVM User’s Guide
5pF_open
5pF_open
0.1uF
10uF
1uF
10uF
CAP_HDC_0603
CAP_HDC_0603
CAP_HDC_0603
CAP_HDC_0603
CAP_HDC_0603
CAP_HDC_1206
10uF
0.01uF
CAP_HDC_1206
CAP_HDC_0603
0.1uF
CAP_HDC_0603
100pF
22uF
22uF
0.1uF
1uF
100uF
0.01uF
10uF
4.7uF
Green_LED,0603
DIODE SCHOTTKY
DIODE SCHOTTKY
Orange_LED,0603
HEADER 16X2
IDC1X3
2x3-Pin Header
RJ45
HEADER 16X2
CON2
CONN JACK PWR
39uH
100uH
FB 1000 Ohm,0402
CAP_HDC_0603
805
Radial_Surface_Mount
CAP_0603
CAP_HDC_0805
3216_12_EIA_1206
CAP_HDC_0603
CAP_HDC_0805
CAP_HDC_0805
603
SC_90_SOD_323F
S_Mini_2P
603
Through_Hole_Right_Angle
Header_1X3P
Header_2X3P
RJ45_LED
hdr_100mil_16X2
CON2
3_terminal_thru_hole_power_jack
Surface_Mount_
100uH
RES_HDC-0402
HSD_2X2_open
HSD_2X2_open
MN1382N
PMOSFET
CON_HSD-4P_1
CON_HSD-4P
SC_75
PMOSFET
SNLU108 – July 2012
Bill of Materials
Item
Quantity Reference
Part
PCB Footprint
______________________________________________________________________________________
RES_0603
9 R1,R10,R12,R15,R32,R33,
10K
37
R35,R37,R46
38
4 R2,R3,R19,R29
4.7K
RES_0603
39
6 R4,R18,R20,R28,R31,R41
220 ohm
RES_0603
40
9 R5,R7,R8,R9,R23,R24,R25,
33 ohm
RES_0603
R26,R27
1 R6
33 ohm
RES_0603
41
42
5 R11,R13,R34,R36,R38
1.0K
RES_0603
1 R14
1K
RES_0603
43
44
2 R16,R17
33 ohm_open
RES_0603
45
2 R21,R22
1.8K
RES_0603
2 R30,R54
75 ohm,0603
RES_0603
46
47
1 R39
0 Ohm
RES_HDC_0603
48
1 R40
1.0K_open
RES_0603
1 R42
0ohm
RES_HDC_0603
49
50
1 R43
976_open
RES_HDC_0603
1 R44
10K
RES_HDC_0402
51
52
1 R45
470K
RES_HDC_060
53
2 R47,R51
9.31K
RES_HDC_0603
54
2 R48,R52
5.62K
RES_HDC_0603
55
2 R49,R53
51K
RES_HDC_0603
56
1 R50
0ohm_open
RES_HDC_0603
2 R58,R59
0 ohm_open
RES_0402
57
58
1 S1
SW DIP-2
Surface_Mount
59
2 S2,S4
SW PUSHBUTTON SPST_NO
60
1 S3
SW DIP-4
CT2184LPST
1 U1
DS90UB901Q
32ld_LLP
61
62
1 U2
ATtiny25
8_SOIC
63
2 U3,U7
MN1382N, 3.4-3.7V Mini_3P
1 U4
LP2992AIM5-3.3
SOT_23_5
64
65
2 U5,U11
LP2992AIM5-1.8
SOT_23_5
66
1 U6
DS90UB902Q
40ld_LLP
67
1 U8
LM22671MRE-5.0
8_PSOP
68
1 U9
NC7SZ14/SOT23
SC70_5
69
1 U10
NC7SZ74
US8_8_VSSOP
70
2 U12,U13
LP38693MP-ADJ
SOT223-4
71
1 Y1
OSC4/SM
4_PIN_SMT
SNLU108 – July 2012
SERDESUB-16OVT EVM User’s Guide
9
Appendix
8. APPENDIX
Serializer and Deserializer PCB Schematics
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FCC Warning
This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION
PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general customer use. It generates, uses, and
can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to part 15
of FCC rules, which are designed to provide reasonable protection against radio frequency interference. Operation of this equipment
in other environments may cause interference with radio communications, in which case the user at his own expense will be
required to take whatever measures may be required to correct this interference.
EVALUATION BOARD/KIT IMPORTANT NOTICE
Texas Instruments (TI) provides the enclosed product(s) under the following conditions:
This evaluation board/kit is intended for use for ENGINEERING DEVELOPMENT, DEMONSTRATION, OR EVALUATION
PURPOSES ONLY and is not considered by TI to be a finished end-product fit for general consumer use. Persons handling the
product(s) must have electronics training and observe good engineering practice standards. As such, the goods being provided are
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including product safety and environmental measures typically found in end products that incorporate such semiconductor
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Copyright © 2012, Texas Instruments Incorporated
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