cx25870 Conexant Systems, Inc., cx25870 Datasheet - Page 100

• Manufacturer Part Number: cx25870
• Description: Video Encoder With Adaptive Flicker Filtering And Hdtv Output
• Manufacturer: Conexant Systems, Inc.

1.0 Functional Description
1.3 Device Description
1-84
four on-chip DACs by adjusting the appropriate OUT_MUXA/B/C/D[1:0] bits.
All of the OUT_MUX bits are contained in register 0xCE.
Component Video, the designer can choose to use the 4
DAC_D, for any purpose deemed necessary. This output can be configured to
either the P
going to be used whatsoever, Conexant recommends DAC_D be disabled by
setting DACDISD (bit 3, Register BA). This will save on power dissipation.
display medium. Correct Y, P
CX25870 output sees an equivalent impedance of 37.5
destination.
governing the Standard Definition TV Analog Component Video interface. The
name of these standards are as follows:
http://global.ihs.com/
Component Video output utilize the same DAC low-pass filters used for standard
definition TV outputs listed in
The analog Y, PB, and PR - Video[0-3] outputs can be routed out of any of the
Because the CX25870 device has four DACs and only three are needed for
The Component Video output signals expect a 75
The CX25870 is compliant with the major standards and technical reports
• EIA 770.2-A–Standard Definition TV Analog Component Video Interface
• EIA 770.1–Standard Definition TV Analog Component Video Interface
• ANSI/SMPTE Standard 170M (1994) (M/NTSC) for
To obtain any of these specifications, visit Global Engineering Documents at:
Conexant recommends that any designer utilizing the CX25870 with a
Television–Composite Analog Video Signal–NTSC for Studio
Applications
R
, Y, P
B,
Conexant
or Y_DELAY output via OUT_MUXD. If the output is not
Flicker-Free Video Encoder with Ultrascale Technology
R
, P
Figure 3-2
B
amplitudes will be generated only when each
of this data sheet.
"
"
th
load to ground from the
between the source and
output, usually from
CX25870/871
100381B