PGA2505
- 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%
- Equivalent Input Noise with ZS = 150
- 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.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 日期 |
|---|---|---|---|---|
| * | Data sheet | Digitally-Controlled Microphone Preamplifier datasheet (Rev. B) | 2009年 6月 10日 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
PGA2505EVM — PGA2505 評估模組
PGA2505EVM 提供方便好用的平台，適用於評估 PGA2505 產品的性能和功能。PGA2505 是數位控制的麥克風前置放大器，其設計用於放大動態和電容式麥克風的輸出，以及驅動高性能音訊類比轉數位 (A/D) 轉換器。
PGA2505EVMV2 — 具 USB 介面的 PGA2505 評估模組數位控制麥克風前置放大器
PGA2505EVMV2 評估模組 (EVM) 是一個方便使用的平台，適用於評估 PGA2505 產品的性能和功能。可編程增益放大器可編程為以單位增益貫通訊號，或對輸入訊號施加 9-dB 至 60-dB (3dB 步進) 的增益。增益和支援功能可透過使用 MSP430F5529 微控制器和 PGA2505EVMV2 圖形使用者介面 (GUI) 來控制。
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前，建立完整的終端設備設計和解決方案原型，進而縮短上市時間並降低開發成本。
在 PSpice for TI 設計與模擬工具中，您可以搜尋 TI (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SSOP (DB) | 24 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中的可靠性監測
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。