数据手册:MAX4298, MAX4299 具有极高PSRR的立体声耳机驱动器 .pdf [英文Rev.1(PDF,340kB)]
{状况:生产中。}
The MAX4298 and MAX4299 are audio system ICs designed for single +5V applications. The MAX4299 features a stereo headphone driver, a microphone amplifier, and a +3.3V linear regulator; the MAX4298 features a stereo headphone driver. The MAX4298/MAX4299 are designed specifically for harsh digital environments where board space is at a premium and the digital power supply is noisy. The design uses innovative design techniques to achieve ultra-high power-supply rejection across the audio signal band while, at the same time, delivering a high-current Rail-to-Rail output drive capability. The chip is designed to drive highly capacitive loads that may be encountered when driving long cables to a remote load such as desktop/notebook headphones or speakers. These devices are fully compliant with PC99 standards.
The amplifiers exhibit 115dB of DC power-supply rejection and 80dB at 100kHz. The output amplifiers are capable of driving a 1.5VRMS signal into a 10-kilohm load with 0.0008% THD+N. They can also drive 32Ω headphones to 1.2VRMS with 0.02% distortion. At +3.3V, the linear regulator can output 100mA of current. The MAX4298 is available in a tiny 10-pin µMAX® while the MAX4299 is available in the space-saving 16-pin TSSOP package.
产品关键特性
- Audio System IC (MAX4299)
- Ultra-High PSRR Stereo Headphone Driver
- Ultra-High PSRR Microphone Amp
- 100mA, 3.3V Linear Regulator
- 93dB typ PSRR at 20kHz Operates Directly from Noisy Digital Supplies
- Clickless/Popless Power Up, Power Down, Mute and Unmute
- PC99 Compliant Output Drivers:
- Better than 1VRMS Output into 16Ω Load and 1.5VRMS and 0.0008% THD+N into 10kΩ Load
- PC99-Compliant Microphone Amplifier:
- 0.005% THD+N into 10kΩ Load
- 22nF Capacitive Load Drive Capability
- 4.5V to 5.5V Single-Supply Operation
- Internally Generated Bias Voltage
- All Gains Externally Adjustable
- Available in Space-Saving Packages
- 10-Pin µMAX (MAX4298)
- 16-Pin TSSOP (MAX4299)
| 应用与使用范围
- 计算机:台式机、工作站和服务器
- 消费类音频
- 无绳电话
- 笔记本电脑
- 掌上电脑
- 笔输入掌上电脑
|
典型工作电路典型工作电路
![MAX4298, MAX4299 典型工作电路典型工作电路](/downLoad/maxim/diagram/2332_1.gif)
芯片订购型号
订购型号 | 产品状态 | 封装形式 | 工作温度 | RoHS/无铅 |
MAX4298ESD | 生产中 | | SOIC(N);14引脚;54.2mm²封装信息 | -40°C至+85°C |
MAX4298ESD+ | 生产中 | | SOIC(N);14引脚;54.2mm²封装信息 | -40°C至+85°C |
MAX4298ESD+T | 生产中 | | SOIC(N);14引脚;54.2mm²封装信息 | -40°C至+85°C |
MAX4298ESD-T | 生产中 | | N.SO;14引脚封装信息 | -40°C至+85°C |
MAX4298EUB | 生产中 | | µMAX;10引脚;15.4mm²封装信息 | -40°C至+85°C |
MAX4298EUB+ | 生产中 | | µMAX;10引脚;15.4mm²封装信息 | -40°C至+85°C |
MAX4298EUB+T | 生产中 | | µMAX;10引脚;15.4mm²封装信息 | -40°C至+85°C |
MAX4298EUB-T | 生产中 | | µMAX;10引脚;15.4mm²封装信息 | -40°C至+85°C |
MAX4299EUE | 停止供货 | MAX97220AETE+ | TSSOP;16引脚;33.4mm²封装信息 | -40°C至+85°C |
MAX4299EUE+ | 停止供货 | MAX97220AETE+ | TSSOP;16引脚;33.4mm²封装信息 | -40°C至+85°C |
MAX4299EUE+T | 停止供货 | MAX97220AETE+ | TSSOP;16引脚封装信息 | -40°C至+85°C |
MAX4299EUE-T | 停止供货 | MAX97220AETE+ | TSSOP;16引脚封装信息 | -40°C至+85°C |
MAX4299EWP | 停止供货 | MAX97220AETE+ | SOIC(W);20引脚;137.3mm²封装信息 | -40°C至+85°C |
MAX4299EWP+ | 停止供货 | MAX97220AETE+ | SOIC(W);20引脚;137.3mm²封装信息 | -40°C至+85°C |
MAX4299EWP+T | 停止供货 | MAX97220AETE+ | W.SO;封装信息 | -40°C至+85°C |
MAX4299EWP-T | 停止供货 | MAX97220AETE+ | W.SO;20引脚封装信息 | -40°C至+85°C |
功能接近器件
MAX4165 | 高输出驱动、精密的低功耗、单电源、满摆幅输入/输出运算放大器,带有关断 |
MAX4166 | 高输出驱动、精密的低功耗、单电源、满摆幅输入/输出运算放大器,带有关断 |
MAX4167 | 高输出驱动、精密的低功耗、单电源、满摆幅输入/输出运算放大器,带有关断 |
MAX4322 | 单/双/四路、低成本、UCSP/SOT23封装、低功耗、满摆幅输入/输出运算放大器 |
MAX4323 | 单/双/四路、低成本、UCSP/SOT23封装、低功耗、满摆幅输入/输出运算放大器 |
MAX4326 | 单/双/四路、低成本、UCSP/SOT23封装、低功耗、满摆幅输入/输出运算放大器 |