Nokia 6800 Series - Manual (Page 110)

6800/7000 Series - Distribution and Routing Products Installation and Operation Manual 83
VPD-6830-DLY Series Chapter 8: VPD-6830 Programmable Video DA Series
VPD-6830-DLY Series
The VPD-6830-DLY module series provides selectable amounts of delay,
up to 1235 ns. The delay submodule includes a delay line with
jumper-selectable delay (0 to 235 ns), fine delay adjust (5 ns range), and
a socket for an additional fixed delay line that can be one of 200, 400,
600, 800, or 1000 ns increments. Different model numbers allow users to
specify how much total delay is desired.
The following diagram illustrates the VPD-6830-DLY240 signal flow:
Figure 8-13. VPD-6830-DLY240 Block Diagram
Input Coupling
Section
AC
Input
Differential
Amplifier
DC
EQ
GAIN
CLAMP
Clamp Mode
Selection
No
Clamp
Hard
Soft
Eight
Coax
Outputs
Output
Amplifier
Delay 1 Delay 2
5nS
Delay
X X EQ
AC