Brompton TESSERA M2, User Manual

Page: 223 / 296

TESSERA - V3.0 | USER M ANUAL - REV B | 14.6 - HIGH FRAM E RATE
223
14.6 - HIGH FRAME RATE
The Tessera SX40 and Tessera S8 LED Processor s support up to 144 fps, this increase to fram e
rate allows for input content (if input is being sent at high fram e rate) to appear sm oother, or
allows for m ore action- packed scenes to appear in m ore detail. This im plem entation is not
without its trade-off between capacity and fram e rates. Due to HDMI bandwidth lim itations with
the increase to fram e rate, the processor video input pixel capacity is also reduced. SDI inputs
do not support High Fram e Rate.
E.g. Tessera SX40 processor capacity at 60Hz is approxim ately 9 m illion pixels. By doubling the
fram e rate to 120 Hz, this halves to 4.5 m illion pixels. At the m axim um of 144 Hz, the capacity is
3.75 m illion pixels.
With the addition of High Fram e Rate and the reduced pixel capacity, canvas properties
supports additional resolutions and refresh rates for high fram e rate: 3K (3072 x 1728) up to 100
Hz, 2.8K (2800 x 1575) up to 120 Hz, QHD (2560 x 1440) up to 144 Hz and HD (1920 x 1080) up to
144 Hz. It’s also possible to specify any custom resolution and refresh rate that rem ains within
the pixel capacity lim it. (This generates a custom EDID to help configure the source.)
1G output capacity also scales according to fram e rate (e.g. 525,000 pixels at 8-bit 60Hz halves to
262,500 pixels at 8-bit 120 Hz). High fram e rate requires high fram e rate-capable Tessera R2
Receiver Card -based fixtures with approxim ately 108,000 pixels or fewer, with suitable driver
chips and sufficient headroom in the fixture electrical design to cope with the increased fram e
rate.
Depending on the fixture, driver chips m ay need to be run at lower bit depths to achieve high
fram e rates. In this case, the fixture will operate at the original bit depth whenever possible,
dropping autom atically to a lower bit depth when required for High Fram e Rate. This reduction
in bit depth is com pensated for by Dark Magic, which offers im proved results at higher fram e
rates.
N OTE High Fram e Rate is not supported by all fixtures. Please contact our Brom pton
Support Team at support@brom ptontech.com to check whether your fixtures
support this feature.