RFSA3523

5 - 6000 MHz Serial Controlled Digital Step Attenuator, 5-Bit, 0.5 dB Steps

Discontinued >

End of Life announced May 29, 2020 (PCN 20-0070).
Last Time Buy: December 9, 2020
Contact your local sales representative for assistance.

Key Features

  • 5-Bit, 15.5dB Range, 0.5dB Step
  • Patented Circuit Architecture
  • Overshoot-free Transient Switching Performance
  • Frequency Range 5MHz to 6000MHz
  • High Linearity, IIP3 >55dBm
  • Serial Control Interface
  • Fast Switching Speed, <120nsec Typical
  • Serial Addressable Supports Up to Eight Addresses
  • Single Supply 3V to 5V Operation
  • RF Pins Have No DC Voltage, Can be DC Grounded Externally
  • Power-up Default Setting Is Maximum Attenuation

Qorvo's RFSA3523 is a 5-bit digital step attenuator (DSA) that features high linearity over the entire 15.5dB gain control range with 0.5dB steps. The RFSA3523 uses serial control interface. The RFSA3523 has a low insertion loss of 1.4dB at 2GHz. Patent pending circuit architecture provides overshoot-free transient switching performance. External address pins allow up to eight DSAs to be controlled on a single bus. The RFSA3523 is available in a 3mm x 3mm QFN package.