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 compact, 3 mm ´ 3 mm LFCSP package. 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
Controlled manufacturing baseline
One assembly/test site
One fabrication site
Applications
Cellular infrastructure
Microwave radios and very small aperture terminals (VSATs)
Test equipment and sensors
IF and RF designs