DIGITAL-LOGIC AG
M Manual V1.0C
8
2.3 Multimedia, power and display features
The M with its flexible display support, 2D and 3D acceleration and reduced power
consumption includes following features:
-
Multiple display support with hydravision software (multiple desktop on one or more displays) like
-
Inegrated LVDS interface (24-bit) up to resolution 2048x1536
-
DVI compliant TMDS transmitter (165MHz) up to resolution of 1600x1200
-
TV-Out (CVBS or S-Video) up to resolution of 1024x768
-
Dual independent displays (DVI/LVDS, DVI/CRT, DVI/TV, CRT/TV)
-
MPEG-2 hardware decoding acceleration (iDCT and motion compensation) to enable DVD playback
without increasing CPU activity.
-
3D acceleration for both DX7 and OpenGL
-
Reduced power consumption with flexible operating frequency and voltage management.
-
66MHz core and memory frequency for 2D and switch to 180MHz core and 230MHz memory
frequency for 3D applications (POWERPLAY and POWER ON DEMAND technology)
2.4
Thermal and cooling considerations
Using M, one may consider using cooling (passive or active)
The following calculations may be performed to compute the maximal ambient temperature without any
implemented cooling solution.
2.4.1
Computing maximum operating ambient temperature
Introducing
CA
value (case-to-ambient thermal resistance) and considering the maximal allowed case
temperature (
TCmax
) of 105°C and the required power (
P
) for your application (examples are given in
tables from section 2.2), you can compute the maximal allowed ambient temperature
TAmax.
TAmax = TCmax - P x CA
With
CA
values of 11.3 [°C/W] with no airflow on the chip. Other values of
CA
may be 10.9 [°C/W] and 9.7
[°C/W] with respective airflow of 1 [m/s] and 2 [m/s]
Example: 3D heavy applications with 4.5W power and no airflow gives an maximum ambient temperature
of approximately 54°C.
The junction temperature from the chip must not exceed 125°C and can be computed using a junction to
case thermal resistance of 3 [°C/W] as following:
TJmax = (3 + CA) x P +TA
with
TA
the actual ambient temperature
Summary of Contents for MICROSPACE MSMVA104+
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