LM4992
- Available in Space-Saving WSON Package
- Ultra Low Current Shutdown Mode
- BTL Output Can Drive Capacitive Loads
- Improved Click and Pop Circuitry Eliminates Noise During Turn-On and Turn-Off Transitions
- 2.2 - 5.5V Operation
- No Output Coupling Capacitors, Snubber Networks or Bootstrap Capacitors Required
- Unity-Gain Stable
- External Gain Configuration Capability
Key Specifications
- Improved PSRR at 217Hz & 1KHz: 64 dB (1KHz)
- Stereo Output Power at 5.0V, 1% THD, 8Ω: 1.07 W (typ)
- Stereo Output Power at 3.3V, 1% THD, 8Ω: 420 mW (typ)
- Shutdown Current, Vdd = 3.3V: 0.2 µA (typ)
All trademarks are the property of their respective owners.
The LM4992 is a stereo audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications. It is capable of delivering 1 watt, per channel, of continuous average power to an 8Ω BTL load with less than 1% distortion (THD+N) from a 5VDC power supply.
Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4992 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other low voltage applications where minimal power consumption is a primary requirement.
The LM4992 features independent shutdown control for each channel and a low-power consumption shutdown mode, which is achieved by driving both shutdown pins with logic low. Additionally, the LM4992 features an internal thermal shutdown protection mechanism.
The LM4992 contains advanced click and pop circuitry which eliminates noise which would otherwise occur during turn-on and turn-off transitions.
The LM4992 is unity-gain stable and can be configured by external gain-setting resistors.
技术文档
类型 | 标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | LM4992 420mW Stereo Cell Phone Audio Amplifier 数据表 (Rev. B) | 2013年 5月 2日 |
设计和开发
如需其他信息或资源,请点击以下任一标题进入详情页面查看(如有)。
LM4992SDBD — 420mW 立体声手机音频放大器
The LM4992 is a stereo audio power amplifier capable of delivering 1 watt, per channel, of continuous average power to an 8Ω BTL load with less than 1% distortion (THD+N) from a 5VDC power supply.
The LM4992 features independent shutdown control for each channel and a low-power consumption shutdown (...)
PSPICE-FOR-TI — 适用于 TI 设计和模拟工具的 PSpice®
借助 PSpice for TI 的设计和仿真环境及其内置的模型库,您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案,然后再进行布局和制造,可缩短产品上市时间并降低开发成本。
在 PSpice for TI 设计和仿真工具中,您可以搜索 TI (...)
封装 | 引脚 | 下载 |
---|---|---|
WSON (NHK) | 14 | 查看选项 |
订购和质量
- 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
- 制造厂地点
- 封装厂地点