3 - 4
Power Conditioning and Interruptions
Always apply power to the imager
after
connecting to the interface device.
A clean and stable power source is required for the imager. Momentary power interruptions or fluctuations put the imager into
Power Off mode.
AC Characteristics
The following diagrams indicate the typical timing for the Power-up and Power-off.
The following imager interface timing diagrams may be used for reference when designing a custom image engine to decoder
flex circuit for a non-bracketed system. The diagrams indicate the timing signals as they originate from the imager, and timing
relationship that is required at the decoder board connector.
Power Up From Power Off State (Low Power Mode)*
The PWRDWN signal goes low ~1.1ms after the wake up event occurs, indicating that the device is powered up and ready
to start scanning.
nTrig - Activating the trigger*
nWake - Toggling nWake*
Warning! Connecting the imager to live power (“hot plugging”) may damage the electronic components of
the imager.
!
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