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PGA2505 - MICROPHONE PREAMPLIFIER

General Description

The PGA2505 is a digitally-controlled, analog microphone preamplifier designed for use as a front-end for high-performance audio analog-to-digital converters (ADCs).

Key Features

  • 1.
  • 234 FULLY.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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PGA2505 PGA2505 Burr-Brown Audio www.ti.com ......................................................................................................................................................... SBOS396B – MARCH 2009 – REVISED JUNE 2009 ™ Digitally-Controlled MICROPHONE PREAMPLIFIER FEATURES 1 •234 FULLY DIFFERENTIAL lNPUT-TO-OUTPUT ARCHITECTURE • DIGITALLY-CONTROLLED GAIN USING SPI™: – Gain Range: 9dB through 60dB, 3dB per Step – Unity (0dB) Gain Setting via Serial Port • DYNAMIC PERFORMANCE: – Equivalent Input Noise with ZS = 150Ω and Gain = 30dB: –123dBu – Total Harmonic Distortion plus Noise (THD+N) with Gain = 30dB: 0.