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PGA2505

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增益范围: 0dB 和 9dB 至 60dB（3dB 步长）

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PGA2505

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产品详情

Gain range (dB) 9dB through 60dB, in 3dB steps Input voltage noise (typ) (nV√Hz) 3 Power supply (typ) (V) ±5 Iq (typ) (mA) 30 Interface type Digital SPI Operating temperature range (°C) -40 to 85 Rating Catalog
Gain range (dB) 9dB through 60dB, in 3dB steps Input voltage noise (typ) (nV√Hz) 3 Power supply (typ) (V) ±5 Iq (typ) (mA) 30 Interface type Digital SPI Operating temperature range (°C) -40 to 85 Rating Catalog
SSOP (DB) 24 63.96 mm² 8.2 x 7.8
  • 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 = 150 and Gain = 30dB: -123dBu
    • Total Harmonic Distortion plus Noise (THD+N) with Gain = 30dB: 0.0006%
  • ZERO CROSSING DETECTION MINIMIZES AUDIBLE ARTIFACTS WHEN GAIN SWITCHING
  • INTEGRATED DC SERVO MINIMIZES OUTPUT OFFSET VOLTAGE
  • COMMON-MODE SERVO IMPROVES CMRR
  • FOUR-WIRE SERIAL CONTROL PORT INTERFACE:
    • Simple Interface to Microprocessor or DSP Serial Ports
    • Supports Daisy-Chaining of Multiple PGA2505 Devices
  • OVER-RANGE OUTPUT PIN PROVIDES CLIPPING INDICATION
  • FOUR GENERAL-PURPOSE DIGITAL OUTPUT PINS
  • ±5V POWER SUPPLIES
  • AVAILABLE IN AN SSOP-24 PACKAGE
  • APPLICATIONS
    • MICROPHONE PREAMPLIFIERS AND MIXERS
    • DIGITAL MIXERS AND RECORDERS
    • DIGITAL AUDIO EDITING SYSTEMS
    • BROADCAST EQUIPMENT
    • INTERCOMS

All trademarks are the property of their respective owners.
  • 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 = 150 and Gain = 30dB: -123dBu
    • Total Harmonic Distortion plus Noise (THD+N) with Gain = 30dB: 0.0006%
  • ZERO CROSSING DETECTION MINIMIZES AUDIBLE ARTIFACTS WHEN GAIN SWITCHING
  • INTEGRATED DC SERVO MINIMIZES OUTPUT OFFSET VOLTAGE
  • COMMON-MODE SERVO IMPROVES CMRR
  • FOUR-WIRE SERIAL CONTROL PORT INTERFACE:
    • Simple Interface to Microprocessor or DSP Serial Ports
    • Supports Daisy-Chaining of Multiple PGA2505 Devices
  • OVER-RANGE OUTPUT PIN PROVIDES CLIPPING INDICATION
  • FOUR GENERAL-PURPOSE DIGITAL OUTPUT PINS
  • ±5V POWER SUPPLIES
  • AVAILABLE IN AN SSOP-24 PACKAGE
  • APPLICATIONS
    • MICROPHONE PREAMPLIFIERS AND MIXERS
    • DIGITAL MIXERS AND RECORDERS
    • DIGITAL AUDIO EDITING SYSTEMS
    • BROADCAST EQUIPMENT
    • INTERCOMS

All 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.

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.
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类型 标题 下载最新的英语版本 日期
* 数据表 Digitally-Controlled Microphone Preamplifier 数据表 (Rev. B) 2009年 6月 10日
用户指南 PGA2505EVMV2 User's Guide PDF | HTML 2021年 10月 12日
EVM 用户指南 PGA2505EVM User's Guide 2009年 6月 17日
应用手册 所选封装材料的热学和电学性质 2008年 10月 16日

设计和开发

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评估板

PGA2505EVM — PGA2505 评估模块

PGA2505EVM 是一个方便快捷的平台，用于评估 PGA2505 的性能和特性。PGA2505 是一款数字控制的麦克风前置放大器，专用于放大动态和电容式麦克风的输出以及驱动高性能音频模数 (A/D) 转换器。

用户指南: PDF
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评估板

PGA2505EVMV2 — PGA2505 具有 USB 接口的数字控制麦克风前置放大器评估模块

PGA2505EVMV2 评估模块 (EVM) 是一个用于评估 PGA2505 产品性能和特性的便捷平台。可编程增益放大器可编程为在单位增益下传递信号，或对输入信号应用 9dB 至 60dB（3dB 步长）的增益。增益和支持功能可通过 MSP430F5529 微控制器和 PGA2505EVMV2 图形用户界面 (GUI) 进行控制。

用户指南: PDF | HTML
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订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
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  • 制造厂地点
  • 封装厂地点

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