Silicon Digital Attenuator, 0.125dB LSB, 8-Bit, 50MHz to 20GHz

The ADRF5702 is a 8-bit digital attenuator with a 31.875dB attenuation range and 0.125dB step size manufactured in a silicon on insulator (SOI) process.

This device operates from 50MHz to 20GHz with an insertion loss lower than 2.6dB and excellent attenuation accuracy. The ADRF5702 has RF input power handling capabilities of 27dBm average and 29dBm peak for all states from the ATTIN pin.

The ADRF5702 requires a single-supply voltage of 5V or 3.3V. The device does not support supply intermediate supply voltage levels except values given in the Electrical Specifications section.

The device features serial or parallel mode control and complementary metal-oxide semiconductor (CMOS)-/low voltage transistor to transistor logic (LVTTL)-compatible controls.

The ADRF5702 RF ports are designed to match a characteristic impedance of 50Ω.

The ADRF5702 comes in a 24-terminal, 4.0mm × 4.0mm, land grid array (LGA) package and can operate from −40°C to +105°C.

APPLICATIONS

* Industrial scanners

* Test and instrumentation

* Cellular infrastructure: 5G millimeter wave

* Military radios, radars, and electronic counter measures (ECMs)

* Microwave radios and very small aperture terminals (VSATs)

* Frequency range: 50MHz to 20GHz

* Attenuation range: 31.875dB with 0.125dB step size

* Low insertion loss

* 1.4dB typical up to 6GHz (5V supply)

* 1.8dB typical up to 12GHz (5V supply)

* 2.6dB typical up to 20GHz (5V supply)

* Attenuation accuracy: −(0.1 + 2.0% of attenuation state) typical up to 20GHz

* Step error: −0.30dB typical up to 20GHz (5V supply)

* High linearity

* Input P0.1dB

* Attenuation state < 8dB: 32dBm typical (5V supply)

* Attenuation state ≥ 8dB: 29dBm typical (5V supply)

* Input IP3

* Attenuation state < 16dB): 55dBm typical (5V supply)

* Attenuation state ≥ 16dB): 50dBm typical (5V supply)