saeligcompany

Ruggedized clock oscillator provides 2 MHz to 60 MHz for industrial apps

August 21, 2020 By Heather Hall Leave a Comment

Saelig Company has launched the Euroquartz EQXO-75UIE Extended Industrial Temperature Ruggedized High-Reliability Oscillators. The EQXO-75UIE series is a ruggedized high-reliability SMD clock oscillator. Designed for demanding industrial applications, it provides reliable operation with excellent frequency stability across an extended industrial operating temp range of -40° C to +105° C. Mechanical shock survivability has been tested to 1500 g MIL-STD-883 K Meth 2002.5, Condition B. Temperature stabilities of ±50, 75 and 100 ppm are available, with tighter options by request (dependent on conditions). This component, available with short lead time, has no ITAR restrictions. All EQXO-75UIE crystals are pre-aged as part of an additional manufacturing process in order to improve long-term application stability. With an ageing specification of ±1 ppm maximum for the first year, an even tighter ageing specification is available by request.

If phase noise is a critical project design consideration then it is important to realize that vibration causes a degradation in both spectral output and phase noise. Even moderate levels of vibration can significantly introduce an unwanted signal variation. The acceleration-sensitivity (“g-sensitivity”) of components is often a limiting factor in these applications, and quartz crystals often prove to be a critical limiting component in a design.

Low-power narrow-band synthesized transceiver targets ISM band apps

July 6, 2020 By Aimee Kalnoskas Leave a Comment

Saelig Company, Inc. has announced the Circuit Design LMD-401 RF Transceiver Module for industrial applications, which is certified to FCC Part 90 in the USA and ISED RSS-119 in Canada. The LMD-401, a successor to the successful LMD-400-R, is a compact integrated module with the long-range transmission and excellent interference rejection characteristics demanded for today’s battery-operated radio equipment. The LMD-401 is pin- and performance-compatible with the LMD-400-R, but provides reduced current consumption and a greater operating temperature range. Users can set operating frequencies in 12.5kHz steps within the 458MHz to 462.5MHz band, now with improved RF output flatness up to 10mW. Receiver performance includes superior interference rejection characteristics that meet the highest European EN300220 receiver standard, category 1.

The LMD-401 is designed to have low spurious emissions and excellent interference rejection capabilities, with sensitivity to -116dBm. Users can expect stable operation, even in a site where multiple radio units are being operated simultaneously. All high-frequency circuits are enclosed inside a robust housing to provide exceptional resistance against shock and vibration. Using a TCXO as the reference oscillator circuit ensures high frequency stability over a wide temperature range.

This simple, compact and low power transceiver is designed for embedding in user equipment and is suitable for low power industrial telecontrol and telemetry applications requiring high performance and reliability. Applications include industrial remote control, telemetry, remote monitoring, security, data acquisition, SCADA, etc.

Features

FCC Part 90 and ISED RSS119 certified
12.5kHz channel spacing Narrow band FM
High receiver sensitivity with double super-heterodyne receiver circuit
Superior receiver performance (EN300220 category 1 receiver equivalent)
4800bps data rate
Transparent data interface: simple and easy serial data interface allowing use of user-specific protocols
Operating voltage: 3.0 to 5.5 V (typ. 46mA / TX, 36mA / RX)
Operating temperature range: -20 to +65degC

Programmable USB keyboard controller module simulates keystrokes for up to 64 keys

May 20, 2020 By Aimee Kalnoskas Leave a Comment

Saelig Company Inc. has introduced the KeyWarrior28, the smallest controller of the KeyWarrior family with a great deal of functionality that is more than just standard keyboard functions. The KeyWarrior28, available as 3.3V QFN28 chip or DIL28 module, controls up to 64 keys in an 8 x 8 matrix. Just a USB cable and the keys are connected to the module. The functionality of the keys is programmable via a USB-port and stored in internal FLASH memory. For instance, it can offer a key-operated mouse function, or media and application controls like Play, Pause, Mute, Start Browser, etc. Each individual key can be programmed with either a single key code, a key code plus a modifier (shift, ctrl, alt, gui), a macro, a mouse function, a media/application control, or a FN key. The two optional FN keys give the ability to switch to a second or third key layout. Like the modifier keys, FN keys can be programmed to act as ‘locking’ or ‘sticky’ (locking, but only for the next key). This allows mode switching, or single finger operation.

Each of the 19 macros can be programmed on to any of the keys. A maximum of 31 key codes can be in each macro. There are three different types of macros. A static macro acts as if all keys in the macro are pressed at the same time. Typing macros activate each code just momentarily. This allows repeating characters, special character use, and upper/lower case in the macro. Cell macros work like the text input on phones with numeric keypads. Pressing the key again removes the last character and replaces it with the next.

The KeyWarrior28 works with existing system drivers and does not require special software. Each unit has a unique serial number and a built-in counter to register the number of erase cycles.

KeyWarrior modules and ICs are designed by Code Mercenaries, a leading European supplier of industrial input devices and peripherals since 1998. They are available now from their USA distributor Saelig Company, Inc.