Chapter 2: Hardware Overview
Table 2-2: Camera Connector Pinout (Cont’d)
R
Pin Number
4
5
6
7
8
Signal Name
VCC (5V)
SCL
CLK_N
SDA
GND
Direction
Out
I/O
In
I/O
-
Warning: The RJ45 connectors on FMC-Video are not Ethernet ports. Connecting anything other
than the camera supplied with VSK to these ports could result in damage to your equipment.
Deserializer
The data stream from the camera is in the form of a high-speed LVDS data stream. This
stream is received and deserialized using a National DS92LV1212A deserializer. This is
capable of carrying LVDS data from a camera which has a pixel rate of 26.6 MHz.
The deserializer requires a reference clock that is provided via a fixed-frequency 27 MHz
oscillator.
Composite/S-Video Output
Connectors
This video interface is provided via two connectors: a female DIN 4 connector for S-Video
and an RCA phone jack for composite signals. These connectors are industry standard.
Video Encoder
The Analog Devices ADV7179 PAL/NTSC Video Encoder IC is used to drive the S-Video
output. This part is given 8-bit 4:2:2 component video data. The pixel clock frequency is
generated by the carrier.
I 2 C Buses
FMC-Video includes two completely separate I 2 C buses. One is defined by the FMC
specification, the other is for general control of components on the carrier card.
FMC I 2 C
The FMC specification includes an I 2 C bus as part of the interface. The mezzanine card is
required to include an EEPROM that is read by the carrier card to identify and configure
the interface for the mezzanine card. The only device connected to this I 2 C bus is this
EEPROM, which is powered by the 3P3VAUX power supply.
18
FMC-Video Daughter Board
UG458 (v1.1) February 8, 2008
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