Astronics 1260-152 - RF

Carte fille 700 MHz, 50 Ohms

The Racal Instruments™ 1260-152/172 is a high- frequency coaxial switch card for use in either the Adapt-a-Switch® 1260-100, VXI carrier, or the 1256, GPIB/RS-232 Switching Mainframe. This switch card is ideal for high-frequency RF switching, as required in the Telecom and Communications markets.

 The  1260-152/172 maintains excellent signal integrity as a result of the high-frequency RF relays and the matching coaxial interface. The 1260-152 has a -3 dB bandwidth of 1.2 GHz at 50 Ohms. The 1260-172 has a -3 dB bandwidth of 900 MHz at 75 Ohms. Both are comprised of 17 channels of SPDT switches and are capable of switching up to 30 V.

SPDT switches may be used independently or cascaded externally to make a multi-channel RF multiplexer. For example, 3 SPDTs can be cascaded to configure a 1X4 RF multiplexer.

All relays on the 1260-152/172 are electromechanical, making all inputs/outputs interchangeable to meet test requirements. Coaxial connector housings (shells) are included with each switch card; however, the connector pins must be purchased separately. Cables supplied with the coaxial pins at both ends (tested up to 1 GHz) are optional and may be ordered in 2, 6, or 12-foot lengths. By cutting the cable in half, the user can support 2 channels per cable and alleviate the need for a special crimp tool. See ordering information on the second page of the data sheet.

When used with the Adapt-a-Switch carrier, the 1260-152/172 requires an Option 01T to communicate with the switch cards and to provide both message-based operation for ease of use and register-based operation for maximum speed. When used with the 1256 Switching Mainframe, no controller is required, and message-based operation is available.

The Racal Instruments Adapt-a-Switch line includes drivers for LabWindows/CVI and LabView for VXI applications. It also includes VXIplug&play compliant support for WIN95/98/NT/2000 platforms.