Texas Instruments DS90UB96X-Q1EVM, User Manual, Page: 10 / 65

FB
4.7
P
H
1 .Ÿ
FAKRA
connector
FPD3 signal
VFEED_POC
100
P
H
1 .Ÿ
0.1
P
F
Demo Board Connections
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10 SNLU177 – July 2016
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DS90UB96X-Q1EVM User's Guide
Table 1-2. Power Supply (continued)
Reference Signal Description
J28.2 (Optional) +1.8V
1.8V ±5%
Alternative to Main Power
J29.2 (Optional) +3.3V
3.3V ±5%
Alternative to Main Power
1.8.2 Power Over Coax Interface
The DS90UB96X-Q1EVM offers four power over coax interfaces (POC) to connect cameras through a
coaxial cable with FAKRA connectors. Power is delivered on the same conductor that is used to transmit
video and control channel between the host and the camera. By default, 5V power supply is applied over
the coax cable. Refer
Table 1-3 to for other POC configurations.
For power over coax (POC) on the EVM, the circuit uses a filter network as shown in Figure 1-4 . The POC
network frequency response corresponds to the bandwidth compatible with DS90UB913A chipsets.
Figure 1-4. Power Over Coax Network
WARNING
Verify that the power voltage is properly set before plugging into
CN1, CN2, CN3, CN4. Power supply is not fused. Overvoltage will
cause damage to boards directly connected due to incorrect input
power supplies.