LM48557
- Integrated Charge Pump
- Bridge-Tied Load Output
- Differential Input
- High PSRR
- I2C Volume and Mode Control
- Reset Input
- Advanced Click-and-Pop Suppression
- Low Supply Current
- Minimum External Components
- Micro-Power Shutdown
- Available in Space-Saving 16-Bump DSBGA Package
Key Specifications
- Output Voltage at VDD = 4.2V
- RL = 1µF +22Ω, THD+N ≤ 1%: 5.8 VRMS (Typ)
Boomer is a trademark of Texas Instruments. All trademarks are the property of their respective owners.
The LM48557 is a single supply, mono, ceramic speaker driver with an integrated charge-pump, designed for portable devices, such as cell phones and portable media players, where board space is at a premium. The LM48557 charge pump allows the device to deliver 5.8VRMS from a single 4.2V supply.
The LM48557 features high power supply rejection ratio (PSRR), 80dB at 217Hz, allowing the device to operate in noisy environments without additional power supply conditioning. Flexible power supply requirements allow operation from 2.7V to 4.5V. The LM48557 features an active low reset input that reverts the device to its default state. Additionally, the LM48557 features a 36-step I2C volume control and mute function. The low power Shutdown mode reduces supply current consumption to 0.01µA.
The LM48557’s superior click and pop suppression eliminates audible transients on power-up/down and during shutdown. The LM48557 is available in an ultra-small 16-bump DSBGA package (1.965mm x 1.965mm).
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | Mono, Bridge-Tied Load, Ceramic Speaker Driver w/I2C Volume Control & Reset datasheet (Rev. D) | 2013年 5月 2日 |
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
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點