3.0 PC Board Considerations
CX25870/871
3.3 Recommended Schematics and Layout for CX25870/871
Flicker-Free Video Encoder with Ultrascale Technology
3.3 Recommended Schematics and Layout for
CX25870/871
For the CX25870/871 to operate at an optimal technical level, it is imperative to
adopt the passive components, values, tolerances, and guidelines contained in the
following figures.
Conexant has done extensive lab testing with these components, and found
that they yield the best combination of performance and price.
The complete schematic diagram for a 3.3 V only design is illustrated in
Figure 3-4.
The complete schematic diagram for a mixed 3.3 V and 1.8 V design
environment is illustrated in Figure 3-5.
For a complete schematic diagram for a mixed 3.3V and lower voltage (1.5 V
or 1.1 V) design environment, request assistance from your local FAE. The
finished schematic for the 3.3 V/1.5 V or 3.3 V/1.1 V case will look similar to
Figure 3-5.
Substitution of resistors, capacitors, inductors, and crystals with
nonrecommended values or greater than recommended tolerances may degrade
the video output quality of the CX25870/871 encoder.
3-8
Conexant
100381B
CONEXANT [ CONEXANT SYSTEMS, INC ]
