The module is housed in a 14-pin package, measures 60 x 60 mm, and can be connected to an external antenna via the integrated SMA connector. When the GNSS signal is lost, the internal 10 MHz OCXO switches to Holdover mode. This Holdover function achieves an accuracy of 1.5 µs under optimal conditions over a 24-hour period.
The standard operating temperature range for the module is -20 to +75 °C, but extended versions with a temperature range of -40 to +85 °C are also available. Additional specifications regarding the Holdover function are available upon request. The supply voltage is 5 V, and the output signal is a standard HCMOS signal. During the warm-up phase of the disciplined OCXO, power consumption reaches a maximum of 2 A, but under normal, stable operation, current consumption drops to 1 A.
The design includes an internal adaptive algorithm that allows the module to "learn" the GNSS signal parameters while connected to the GNSS signal. To achieve the specified Holdover function in case of signal failure, the module must have been used for at least 3 days. An internal alarm is also incorporated to alert of the loss of the GNSS signal connection and its subsequent re-establishment. Additionally, the module features a serial interface for detailed queries of the device's functions.
The IQCM-112 is designed for numerous applications, including terrestrial telecommunications systems and marine navigation systems, thus expanding the range of highly specialized modules and oven-controlled oscillators available from IQD.
Digi International and Digi-Key present a new XBee kit with wireless connectivity
Digi International® and Digi-Key Electronics have announced the availability of the Digi XBee® Wireless Connectivity Kit (XKB2-AT-WWC). Initially available exclusively through Digi-Key for the next 90 days,
