Datalogic, Barcode Scanner, DL3 CMOS single chip bar code decoder

DL3
Chip decoder

Features
Applications
Description
Models/Accessories
Specifications

FEATURES

•	Decodes optic pens, fixed beam, badge and CCD readers, hand held laser scanners
•	Single chip IC available in DIL or chip carrier package
•	Decodes the most common bar code symbologies
•	TTL-ASCII parallel or serial communication interface
•	Programmable also through the communication port
•	CMOS technology (low power consumption)

APPLICATIONS

•	Data collection and registration via bar codes
•	Built into cash registers and keyboards
•	Control systems, scales, measuring and laboratory equipment
•	Time registration and identification terminals

GENERAL DESCRIPTION

The DL3 chip decoder is an advanced integrated single chip bar code decoder. It decodes signals generated by fixed beam, moving beam or CCD bar code readers.
Only a few additional components are needed for a full working decoder, making the DL3 ideal as a built-in part of customized equipment.
The DL3 decodes bar codes into ASCII characters which are transferred to the receiving system through serial asynchronous full duplex communication or parallel communication with handshaking (8255 compatible). All necessary parameters, such as bar code type and checksum algorithms, can be set either from the host system or via external DIP switches.
In spite of its small size, the DL3 is a very powerful and flexible bar code decoder. It reads the most common bar code symbologies and auto-discriminates between several codes.
Several transmission parameters are selectable: Parity, ACK/NACK protocol, and choice of preambles and postambles of the transferred character string. Serial baud rate is set either internally or from an external clock signal.
The DL3 can be set to echo back all received data in the original format onto its transmission port.
An acoustic signal can be generated by connecting a beeper or another device to the beeper output of DL3.
The DL3 is available in both a 40 pin DIL package and a 54 pin surface mount flat pack case.

MODELS AND ACCESSORIES

*Models*
•	DL3-01 - 40 pin DIP package
•	DL3-02 - 54 pin flat pack

SPECIFICATIONS

•	POWER SUPPLY 5 Vdc ±10%
•	POWER CONSUMPTION 7 mA typ., 10 mA max.
•	COMPATIBLE READERS Optic pens, Fixed and slot readers, Hand-held CCD and laser readers, Readers with pen emulation output
•	MEMORY TYPE CMOS static RAM
•	OUTPUT INTERFACES (*) TTL ASCII output, serial or parallel (8255 compatible)
•	BAUD RATE 300 to 9600 or other using an external clock
•	PARITY Mark, Space, Odd or Even
•	TRANSMISSION FORMAT 7 or 8 bits with 1 stop bit
•	INPUT SIGNAL TTL compatible (trigger for hand-held laser scanners)
•	OUTPUT SIGNAL Good read (NPN open collector)
•	READABLE BAR CODES EAN/UPC/JAN families with or without Add-On Code, 2/5 family, code 39, Codabar
•	MAX. NUMBER OF DIGITS 60
•	BAR CODE READING Single code or auto-discrimination
•	PROGRAMMING METHOD DIP switch setting or software commands
•	DIMENSIONS DL3-01 53.4 x 14.0 x 5.1 mm (2.1 x 0.5 x 0.2 in.) DL3-02 25.6 x 19.6 x 2.9 mm (1.0 x 0.8 x 0.1 in.)
•	OPERATING TEMPERATURE 0 to 70 °C (32 to 158 °F)
•	STORAGE TEMPERATURE -55 to 150 °C (-67 to 302 °F)
•	(*) Parallel output is available only in pen decoder configuration