Zebra DS457 User Manual

1 - 4 DS457 Fixed Mount Imager Integration Guide
DS457 Decoder/Interface Board
Marvell PXA320 Processor
The digital system is built on a Marvell PXA320 (Intel XScale
®
) super-pipelined RISC microarchitecture core.
The major features of the core are:
• CPU clock speed up to 624 MHz with external DDR SDRAM bus speed of 133 MHz.
• 32 KB instruction/32 KB data L1 cache, 256 KB unified L2 cache, 728 KB internal SRAM
Power Management
The DS457 decoder/interface board has various power management options depending on the host interface.
• USB (SNAPI, USB HID Keyboard, etc.) - The DS457 automatically manages its power usage, including
USB suspend mode. Additionally, when drawing power from the USB bus, the DS457 does not exceed
the USB limit of 500 mA.
• SSI or RS-232 - When using SSI or any RS-232 host interface, the DS457 uses one of the following power
modes. See Power Mode (RS-232 Hosts Only) on page 6-17.
• Continuous Power: The DS457 is fully awake and running, even when not in a decode session.
• Low Power (default): The DS457 draws less current at idle than when in Continuous Power mode.

Zebra DS457 Specifications

General

Type	Fixed bar code reader
Wavelength	655 nm
Sensor type	-
Scanner type	1D/2D
Optical sensor resolution	752 pixels
Standard interfaces	USB
Connectivity technology	Wired
Input voltage	5 V
Power consumption	450 mA
Safety	ETL, VDE, CETL, EN60950, Ctick, VCCI
Certification	FCC, RoHS
Product color	Black
Storage temperature (T-T)	-40 - 70 °C
Operating temperature (T-T)	-20 - 50 °C
Cables included	USB, VGA
Harmonized System (HS) code	84716070

Weight and Dimensions

Depth	58.4 mm
Width	62 mm
Height	29.2 mm
Weight	111 g