and Gain = 30dB: -123dBuAll trademarks are the property of their respective owners.
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). The PGA2505 features include low noise, wide dynamic range, and a differential signal path. An on-chip dc servo loop is employed to minimize dc offset, while a common-mode servo function may be used to enhance common-mode rejection.
The PGA2505 features a gain range of 9dB through 60dB (3dB/step), along with a unity gain setting. The wide gain range allows the PGA2505 to be used with a variety of microphones. Gain settings and internal functions are programmed using a 16-bit control word, which is loaded using a simple serial port interface. A serial data output pin provides support for daisy-chained connection of multiple PGA2505 devices. Four programmable digital outputs are provided for controlling the external switching of input pads, phantom power, and high-pass filters. The PGA2505 requires both +5V and -5V power supplies and is available in a small SSOP-24 package.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | Digitally-Controlled Microphone Preamplifier datasheet (Rev. B) | 10 Jun 2009 | |
| User guide | PGA2505EVMV2 User's Guide | PDF | HTML | 12 Oct 2021 | |
| EVM User's guide | PGA2505EVM User's Guide | 17 Jun 2009 |
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The PGA2505EVM is a convenient platform for evaluating the performance and features of the PGA2505. The PGA2505 is a digitally-controlled, microphone preamplifier designed for amplifying the output of dynamic and condenser microphones and driving high-performance audio analog-to-digital (A/D) (...)
The PGA2505EVMV2 evaluation module (EVM) provides a convenient platform for evaluating the performance and features of the PGA2505 product. The programmable gain amplifier can be programmed to either pass through the signal at unity gain, or apply 9-dB to 60-dB (3dB steps) of gain to the input (...)
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| SSOP (DB) | 24 | Ultra Librarian |
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