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ASI094MC Pro Manual
9
5.2 DDR Buffer
The ASI094 Pro camera includes a 256MB DDR3 memory buffer to help improve data
transfer reliability. Additionally, the use of a memory buffer minimizes amp-glow, which is caused
by the slow transfer speeds when the camera is used with a USB 2.0 port.
DDR memory buffer is the main difference between ASI “Cool” and “Pro” cameras.
5.3 Power Consumption
ASI094 Pro camera has one full frame sensor, so the power consumption (650mA@5V) is
much higher than other cameras. But USB3.0 can provide 1000mA current, so ASI094 Pro can run
standalone under USB3.0 host, it doesn’t need external power supply.
You need to connect the external 12v power supply if you connect the camera to USB 2.0
host which can only provide 500ma current.
Recommended cooler power supply: 12V @ 3-5A (or more) DC adapter (2.1×5.5mm, center
pole positive). Also suitable: DC battery with 9-15V.
Here is a test result of the cooler power consumption of ASI094 camera. It only needs 0.5A to
cool the camera to 20 degree below ambient.
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