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![qsop-28 qsop-28](http://cdn.baofuxin.cn/wp-content/uploads/2021/07/qsop-28.png)
![QSOP-28-1 QSOP-28-1](http://cdn.baofuxin.cn/wp-content/uploads/2021/07/QSOP-28-1.png)
THAT4320Q28-U 模拟引擎动态处理器
- 预调整的 VCA 和 RMS 检测器
- 宽电源电压范围:4.5V~16V
- 低电源电流:3.7mA 典型值。(5V)
- 四个运算放大器
- 一个低噪声运算放大器 (<5nV/√Hz)
- 机载 PTAT 参考
- 宽动态范围:120dB 作为压扩器
技术规格
电源电压(最低) Supply Voltage (minimum) | 4.5V |
电源电压(最大) Supply Voltage (maximum) | 16V |
电源类型 Supply Type | Single |
电源电流 Supply Current | 1.7mA |
总谐波失真 Total Harmonic Distortion | 0.05% |
总增益范围 Total Gain Range | -100, +40dB |
详细描述
THAT4320 是一款单芯片模拟引擎®,针对低电压、低功耗运行进行了优化。
该表面贴装部件结合了一个高性能压控放大器 (VCA)、RMS 电平传感器和四个运算放大器,面向电池供电的音频应用,例如无线麦克风、无线仪器和入耳式监听器。
4320 可在低至 +4.5 Vdc 的单电源电压下工作,仅消耗 3.7 mA。
VCA 在晶圆阶段进行了预修整,无需进一步调整即可提供低失真。
一个运算放大器足够安静,可以用作麦克风前置放大器。
该部件专为用作压扩降噪系统而开发,借鉴了 THAT 在 dbx® 降噪技术方面的悠久历史和经验。然而,该部件具有 22 个有源引脚,非常灵活,可以针对各种应用进行配置,包括单频段和多频段压扩器、压缩器、限幅器、AGC、de-esser 等。
演示板 THAT4320DEMO 可用于该产品。
The THAT4320 is a single-chip Analog Engine® optimized for low-voltage, low-power operation.
Incorporating a high-performance voltage- controlled amplifier (VCA), RMS-level sensor, and four op-amps, the surface mount part is aimed at battery-operated audio applications such as wireless microphones, wireless instruments and in-ear monitors.
The 4320 operates from a single supply voltage down to +4.5 Vdc, drawing only 3.7 mA.
The VCA is pre-trimmed at wafer stage to deliver low distortion without further adjustment.
One op-amp is quiet enough to be used as a microphone preamp.
The part was developed specifically for use as a companding noise reduction system, drawing from THAT's long history and experience with dbx® technology for noise reduction. However, with 22 active pins, the part is extremely flexible and can be configured for a wide range of applications including single and multi-band companders, compressors, limiters, AGCs, de-essers, etc.
Demonstration Board THAT4320DEMO is available for this product.