0.1 GHz to 3 GHz,1 dB LSB, 5-Bit, GaAs Digital Attenuator

The HMC470A is a 5-bit digital attenuator with a 31 dB attenuation control range in 1 dB steps.

The HMC470A offers excellent attenuation accuracy and high input linearity over the specified frequency range from 100 MHz to 3 GHz. However, this digital attenuator features ACG pins for external ac grounding capacitors to extend the operation below 100 MHz.

The HMC470A operates with a single positive supply voltage from 3 V to 5 V and provides CMOS-/TTL-compatible parallel control interface by incorporating an on-chip driver. The HMC470A comes in a RoHS compliant, compact, 3 mm × 3 mm LFCSP package.

Applications

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Cellular infrastructure

* Microwave radios and very small aperture terminals (VSATs)

* Test equipment and sensors

* IF and RF designs

* Attenuation range: 1 dB LSB steps to 31 dB

* Insertion loss: 1.7 dB typical at 3 GHz

* Excellent attenuation accuracy: 0.3 dB typical

* High Input linearity

* 0.1dB compression (P0.1dB): 27 dBm typical

* Third-order intercept (IP3): 48 dBm typical

* High power handling: 27 dBm

* Low phase shift: 27° at 3 GHz

* Single-supply operation: 3 V to 5 V

* CMOS-/TTL-compatible parallel control

* 16-lead, 3 mm × 3 mm LFCSP package