The LM49153 is a fully integrated audio subsystem designed for portable handheld applications such as cellular phones. Part of Texas Instruments' PowerWise family of products, the LM49153 combines an earpiece switch, a high efficiency 25mW class G headphone amplifier, and a high efficiency 1.35W class D loudspeaker into a single device.
The headphone amplifiers feature Texas Instruments' class G ground referenced architecture that creates a ground-referenced output with dynamic supply rails for optimum efficiency. The class D amplifier features an ALC (Automatic Level Control) with a noise gate that provides both no-clip and speaker protection.
Mode selection, shutdown control, and volume are controlled through an I2C compatible interface.
Click and pop suppression eliminates audible transients on power-up/down and during shutdown. The LM49153 is available in an ultra-small 25-bump 0.4mm pitch DSBGA package (2.30mm x 2.42mm).
All trademarks are the property of their respective owners.
| Audio input type | Analog Input |
| Architecture | Class-D |
| Speaker channels (max) | Mono |
| Rating | Catalog |
| Power stage supply (max) (V) | 5.5 |
| Power stage supply (min) (V) | 2.7 |
| Load (min) (Ω) | 8 |
| Output power (W) | 1.35 |
| SNR (dB) | 98 |
| THD + N at 1 kHz (%) | 0.02 |
| Iq (typ) (mA) | 1.2 |
| Control interface | I2C |
| Closed/open loop | Open |
| Analog supply (min) (V) | 2.7 |
| Analog supply voltage (max) (V) | 5.5 |
| PSRR (dB) | 94 |
| Operating temperature range (°C) | -40 to 85 |
| DSBGA (YFQ) | 25 | 4.84 mm² 2.2 x 2.2 |
关注公众号，优惠活动早知道！
Copyright ©2023 wlxmall.com万联芯城版权所有 | 电信与信息服务业务经营许可证100798号 | 粤ICP备14012234号 | 投诉建议
客服电话：4000-306-326 文明办网文明上网举报电话：010-82615762 违法不良信息举报中心
| * 我的问题/建议： | |
| * 联系电话： | |
| 上传图片（选填）： |
请您提交2M以内的jpg,gif,png格式文件 |
| 投诉订单号（选填）： | |
购物车中还没有商品，赶紧选购吧！
正在供货
加入购物车
