HMC624A-EP Datasheet

• Attenuation range: 0.5 dB (LSB) steps to 31.5 dB
• Low insertion loss: 1.6 dB at 3 GHz
• Excellent attenuation accuracy
• High linearity
  • Input 0.1dB compression (P0.1dB): 33 dBm typical
  • Input third-order intercept (IP3): 55 dBm typical
• High RF input power handling: 28 dBm
• Low phase shift: 25° at 3 GHz
• Single-supply operation: 3 V to 5 V
• CMOS-/TTL-compatible control
• 24-lead, 4 mm × 4 mm LFCSP package

ENHANCED PRODUCT FEATURES

• Supports defense and aerospace applications (AQEC standard)
• Extended industrial temperature range: −55°C to +105°C
• Controlled manufacturing baseline
• 1 assembly/test site
• 1 fabrication site
• Product change notification
• Qualification data available upon request 

• Cellular infrastructure
• Microwave radios and very small aperture terminals (VSATs)
• Test equipment and sensors
• Intermediate frequency (IF) and radio frequency (RF) designs 

The HMC624A-EP is a 6-bit digital attenuator with a 31.5 dB attenuation control range in 0.5 dB steps.

The HMC624A-EP offers excellent attenuation accuracy and high input linearity over the specified frequency range from100 MHz to 6.0 GHz. However, this digital attenuator features external ac grounding capacitors to extend the operation below 100 MHz.

The HMC624A-EP is integrated with two dies: a CMOS driver and a gallium arsenide (GaAs) RF attenuator. The CMOS driver provides both serial and parallel control of the RF attenuator.

The device also features a user-selectable power-up state and a serial output port for cascading other serial controlled components.

The HMC624A-EP operates with a single positive supply voltage from 3 V to 5 V and provides a CMOS-/TTLcompatible control interface.

The HMC624A-EP comes in a RoHS compliant, compact,4 mm × 4 mm LFCSP package.

Additional application and technical information can be found in the HMC624A data sheet.