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DM3725CBC Datasheet(PDF) 153 Page - Texas Instruments

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Part # DM3725CBC
Description  Digital Media Processors
PDF  280 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

DM3725CBC Datasheet(HTML) 153 Page - Texas Instruments

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ST
ANDARD
VIDEO
RANGE
TVOUT
10-bit
DAC code
IRE
units
Normal
mode
0
50
111
223
741
783
895
1007
1023
140
131
120
100
20
7.5
0
-20
-40
1.3 V *
pp
Sync level
Black level
Blanking level
Peak level
White level
SWPS038-130
DM3730, DM3725
www.ti.com
SPRS685D
– AUGUST 2010 – REVISED JULY 2011
Figure 5-4 describes the composite video signal levels.
Figure 5-4. Composite Video Signal Levels(1)(2)
(1) The 1.3 VPP (peak-to-peak) is referring to the output signal at cvideo1_out in the DAC + Buffer composite-video mode.
Note that the 1.3 VPP must apply to both cvideo1_out and cvideo2_out in DAC + Buffer s-video mode (dual-DAC mode configured for ac
or dc coupling).
(2) In AVDAC normal mode (DAC + Buffer), higher values of the DAC input code provided by the Video Encoder will result in lower output
voltage due to the inverting configuration of the TVOUT Buffer. See Figure 5-4 for more details on the relation between the composite
video signal levels and the DAC code values for normal mode of operation.
In AVDAC bypass mode (DAC only), higher values of the DAC input code will result in higher output voltage, as the TVOUTBuffer path
is bypassed.
5.5
TVOUT Bypass Mode Specifications (DAC-Only) Electrical Specifications Over
Recommended Operating Conditions
NOTE
The electrical characteristics for single- and dual-channel bypass modes are the same
except that the active current will double in the dual-channel configuration.
Copyright
© 2010–2011, Texas Instruments Incorporated
Video DAC Specifications
153
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Product Folder Link(s): DM3730 DM3725



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