HMC881ALP5E

HMC881ALP5E is a monolithic microwave integrated circuit (MMIC) low-pass filter that features a user-selectable cutoff frequency. The cutoff frequency can be varied from 2.4GHz to 4GHz by applying a single analogue tuning voltage between 0V and 14V. This low-pass filter provides a low 3dB insertion loss, 16.5dB return loss, and 1.35 × f3dB stopband attenuation of >20dB. This tunable filter can be used as a much smaller alternative to physically large switched filter banks and cavity tuned filters. The HMC881A has excellent microphonics due to the monolithic design, and provides a dynamically adjustable solution in advanced communications applications. Applications include testing and measurement equipment, military radar and electronic warfare/electronic countermeasures (ECMs), satellite communication and space, industrial and medical equipment.

• Single-chip replacement for mechanically tuned designs
• Amplitude settling is 200ns typical at (TA = 25°C)
• Cutoff frequency range from 2.4 to 4GHz
• Insertion loss is 3dB typical at (TA = 25°C)
• Return loss is 16.5dB typical at (TA = 25°C)
• Input third-order intercept is 41dBm typical at (Input power (PIN) = 20dBm, two-tone)
• Group delay is 0.5ns typical at (TA = 25°C)
• Drift rate is 0.6MHz/°C typical at (TA = 25°C)
• Tunning voltage is 14V maximum at (TA = 25°C)
• Operating temperature range from -40°C to +85°C, 32-lead LFCSP package