Motorola SE3300, Руководство по интеграции

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CHAPTER 2 INSTALLATION
Introduction
This chapter provides information for mounting and installing the SE3300, including physical and electrical
considerations, and recommended window properties for the SE3300.
General Information
Electrostatic Discharge (ESD)
The SE3300 is protected from ESD events that can occur in an uncontrolled environment. Use care when
handling this component and apply standard ESD handling procedures such as using grounding wrist straps
and handling in a properly grounded work area.
Environment
The engine and decoder must be sufficiently enclosed to prevent dust from gathering on the aiming lens,
imaging lens, and illumination system LEDs. Dust and other external contaminants eventually degrade engine
performance. Motorola does not guarantee performance of the SE3300 when used in an exposed application.
Power Supply Noise
For reliable operation a low-noise power supply is required. Pay proper attention to power supply quality and
testing to ensure the best possible performance from the SE3300. In bar code applications, up to 100 mV
peak-to-peak noise is acceptable on all three power input pins (10 Hz to 100 kHz). For image capture
applications, power supply noise for VCC_SENSOR must be limited to 30 mV (peak-to-peak), across the same
frequency range. To improve image quality use an additional filter on VCC_SENSOR; to achieve optimal
performance use a separate linear regulator to supply VCC_SENSOR. Switching power supplies for
VCC_SENSOR are not recommended.