LM49120
- RF Immunity
- Selectable OCL/SE Headphone Drivers
- 32 Step Volume Control
- Click and Pop Suppression
- Independent Speaker and Headphone Gain Settings
- Minimum External Components
- Thermal Over Load Protection
- Micro-power Shutdown
- Space Saving 16–bump DSBGA Package
- Thermal Shutdown Protection
- Micro-power Shutdown
- I2C Control Interface
Key Specifications
- Output Power at VDD = 5V:
- Speaker: RL = 8Ω BTL, THD+N ≤ 1%: 1.3W (typ)
- Headphone: RL = 32Ω, SE, THD+N ≤ 1%: 85mW (typ)
- Output Power at VDD = 3.6V:
- Speaker: RL = 8Ω, BTL, THD+N ≤ 1%: 632mW (typ)
- Output Power at VDD = 3.3V:
- Speaker: RL = 8Ω, BTL, THD+N ≤ 1%: 540mW (typ)
- Headphone: RL = 32Ω, OCL/SE, THD+N ≤ 1%: 35mW (typ)
All trademarks are the property of their respective owners.
The LM49120 is a compact audio subsystem designed for portable handheld applications such as cellular phones. The LM49120 combines a mono 1.3W speaker amplifier, stereo 85mW/ch output capacitorless headphone amplifier, 32 step volume control, and an input mixer/multiplexer into a single 16–bump DSBGA package.
The LM49120 has three input channels: two single-ended stereo inputs and a differential mono input. Each input features a 32-step digital volume control. The headphone output stage features an 8 step (-18dB – 0dB) attenuator, while the speaker output stage has two selectable (0dB/+6dB) gain settings. The digital volume control and mode control are programmed through a two-wire I2C compatible interface.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | Audio Subsystem with Mono Class AB Loudspeaker Amp & Stereo OCL/SE Headphone Amp datasheet (Rev. C) | 2013年 5月 1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