ADI ADL5243-EVALZ

Усилитель с переменным коэффициентом усиления100 МГц ~ 4 ГГцADL5243

Overview

The VGA integrates two high performance amplifiers and a digital step attenuator (DSA). Amplifier 1 (AMP1) is an internally matched gain block amplifier with 20 dB gain, and Amplifier 2 (AMP2) is a broadband ¼ W driver amplifier that requires very few external tuning components. The DSA is 6-bit with a 31.5 dB gain control range, 0.5 dB steps, and ±0.25 dB step accuracy. The attenuation of the DSA can be controlled using a serial or parallel interface.

The ADL5243ACPZ-R7 consumes 175 mA and operates off a single supply ranging from 4.75 V to 5.25 V. The VGA is packaged in a thermally efficient, 5 mm × 5 mm, 32-lead LFCSP and is fully specified for operation from −40°C to +85°C. A fully populated evaluation board is available.

Features

Applications

• Modem
• MAC
• PA
• TR Switch
• Power Management Unit (PMU)
• Remote monitoring
• Building automation
• Building security
• Industrial
• Automation