Product Description

The RF2420 is a multistage monolithic programmable attenuator. The device is built using an advanced Gallium Arsenide process technology and has an attenuation programmability over a 44dB range in 2dB steps. The attenuation is set by five bits of digital data. The input and output of the device have a low VSWR 50Ω match. This unit is intended for use in systems that require RF transmit power control by digital means. Typical applications are in dual mode IS-54/55 compatible cellular transceivers and TETRA systems. No negative supply voltages are required.

Features

• Single 3V to 6V Supply

• 0dB to 44dB Attenuation Range

• 4dB Insertion Loss

• 5-bit Digitally Controlled Attenuation

• Digitally Controlled Power Down Mode

• DC to 950MHz Frequency Range

Typical Applications

• Power Control in Communication Systems

• CMOS Compatible Programmable Attenuators

• Commercial and Consumer Systems

• Portable Battery-Powered Equipment