Datasheet

3 SERDESUB-21USB User’s Guide SNLU101April 2012
System Requirements:
In order to demonstrate, the following are required:
1) Display module with 1.8V or 3.3V LVCMOS parallel interface
2) Microcontroller (MCU) or FPGA with I
2
C interface bus (I
2
C master)
a. slave clock stretching must be supported by the I2C master controller/MCU.
3) External peripheral device that supports I
2
C (slave mode)
4) Power supply for 1.8V (required) and 3.3V (optional)
Contents of the Demo Evaluation Kit:
1) One Serializer board with the DS90UB903Q
2) One Deserializer board with the DS90UB904Q
3) One 2-meter high speed USB 2.0 cable (4-pin USB A to 5-pin mini USB)
4) Evaluation Kit Documentation (this manual)
5) DS90UB903Q/904Q Datasheet
DS90UB903Q/904Q Serdes Typical Application:
DS90UB903Q
Serializer
DS90UB904Q
Deserializer
DIN
[20:0]
SDA
SCL
DOUT-
RIN-
DOUT+
RIN+
PCLK
SDA
SCL
PCLK
SDA
SCL
Bidirectional
Control Bus
Graphics
Controller
--------
Video
Processor
I2C CNTL
Video Data
HSYNC
VSYNC
Pixel Clock
SDA
SCL
Bidirectional
Control Bus
I2C CNTL
Video Data
HSYNC
VSYNC
Pixel Clock
GPO[3:0]
GPO
GPI[3:0]
GPI
FPD-Link III
ROUT
[20:0]
LCD
Display
Timing Controller
Display Module
DS90UB903Q
Serializer
DS90UB904Q
Deserializer
DIN
[20:0]
SDA
SCL
DOUT-
RIN-
DOUT+
RIN+
PCLK
SDA
SCL
PCLK
SDA
SCL
Bidirectional
Control Bus
Graphics
Controller
--------
Video
Processor
I2C CNTL
Video Data
HSYNC
VSYNC
Pixel Clock
SDA
SCL
Bidirectional
Control Bus
I2C CNTL
Video Data
HSYNC
VSYNC
Pixel Clock
GPO[3:0]
GPO
GPI[3:0]
GPI
FPD-Link III
ROUT
[20:0]
LCD
Display
Timing Controller
Display Module
Figure 1. Typical Application
The diagram above illustrates a typical application of DS90UB903Q/904Q chipset. The
MCU/FPGA can program device registers on the DS90UB903Q, DS90UB904Q, and
remote peripheral device, such as a display module.