Welcome Here  Shenzhen Mingjiada Electronics Co., Ltd.

The PGA2500IDB is a digitally controlled analogue microphone preamplifier designed specifically for the front end of high-performance audio analogue-to-digital (A/D) converters. Key features of the PGA2500IDB include low noise, wide dynamic range, and differential signal paths. The chip's built-in DC servo loop minimises DC offset, while the common-mode servo function can be used to enhance common-mode rejection ratio.

The PGA2500IDB offers a gain range of 10dB to 65dB (1dB per step) and includes a unity gain setting. The wide gain range enables the PGA2500IDB to be used with a variety of microphones. Gain settings and internal functions are programmed via a 16-bit control word, which can be loaded through a simple serial port interface. The serial data output pin supports daisy-chain connection of multiple PGA2500IDB devices. Four programmable digital outputs are provided for controlling external input pad switching, phantom power, high-pass filter, and polarity reversal functions. The PGA2500IDB requires +5V and -5V power supplies and is housed in a compact SSOP-28 package.

PGA2500IDB Features

Fully differential input-to-output architecture  

Digital gain control via serial port interface:  

Gain range: 10dB to 65dB, in 1dB steps  

Unit gain (0dB) can be set via the serial port or dedicated control pin  

Dynamic performance:  

Equivalent noise (ZS = 150 and gain = 30dB): –128dBu

Total harmonic distortion plus noise (THD+N) at gain = 30dB: 0.0004%  

Zero-crossing detection minimises audible distortion during gain switching  

Integrated DC servo minimises output bias voltage  

Common-mode servo improves common-mode rejection ratio (CMRR)  

Four-wire serial control port interface:  

Simple interface with microprocessor or DSP serial port

Supports daisy-chain connection of multiple PGA2500 devices

Dedicated input pin for selecting unity gain

Overload output pin provides clipping indication

Four general-purpose digital output pins

Requires ±5V power supply

Available in SSOP-28 package

PGA2500IDB Applications

Microphone preamplifiers and mixers

Digital mixers and recorders

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

• 3.Can you provide the qualification certificate of the original factory or agent?

  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

• 4.Can I make an inquiry through the company's website?

  A: You can inquire through the website, or by phone and email.

• 5.When can I deliver the goods after placing an order? How long will it take to get there?

  A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.

• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.