3 dB LSB GaAs MMIC 4-Bit Digital Attenuator, DC - 10 GHz

The HMC629ALP4E is a broadband 4-bit GaAs IC Digital Attenuator in a low cost leadless SMT package. This versatile digital attenuator incorporates off-chip AC ground capacitors for near DC operation, making it suitable for a wide variety of RF and IF applications. The dual mode control interface is CMOS/TTL compatible, and accepts either a three wire serial input or a 4-bit parallel word. The HMC629ALP4E is housed in a RoHS compliant 4x4 mm QFN leadless package, and requires no external matching components.

Applications

* Cellular/3G infrastructure

* WiBro / WiMAX / 4G

* Microwave radio & VSAT

* Test equipment and sensors

* IF & RF applications

* 3 dB LSB steps to 45 dB

* Power-up state selection

* Low insertion loss: 2.25 dB

* TTL/CMOS compatible, serial, parallel or latched parallel control

* ±0.25 dB typical step error

* Single +3V or +5V supply

* 24 lead 4x4mm SMT package: 16mm2