0.25 dB LSB 5-Bit Digital Attenuator SMT, DC - 4 GHz

The HMC539LP3(E) is a broadband 5-bit GaAs IC digital attenuator in low cost leadsurface mount package. This single positive control line per bit digital attenuator utilizes an off chip AC ground capacitor for near DC operation, making it suitable for a wide variety of RF and IF applications. Covering DC to 4.0 GHz, the insertion loss is less than 0.7 dB typical. The attenuator bit values are 0.25 (LSB), 0.5, 1, 2, and 4 dB for a total attenuation of 7.75 dB. Attenuation accuracy is excellent at ± 0.05 dB typical step error. The attenuator also features a high IIP3 of +50 dBm. Five TTL/CMOS control inputs are used to select each attenuation state. A single Vdd bias of +5V is required.

Applications

* Cellular Infrastructure

* ISM, MMDS, WLAN, WiMAX, WiBro

* Microwave Radio & VSAT

* Test Equipment and Sensors

* 0.25 dB LSB Steps to 7.75 dB

* ±0.05 dB Typical Step Error

* Low Insertion Loss: 0.7 dB

* High IP3: +50 dBm

* Single Control Line Per Bit