- 参考价格:¥7.04-¥7.66
更新日期:2024-04-01 00:04:00
产品简介:具有 I2C 接口的 1.3W 立体声、模拟输入 AB 类音频放大器
查看详情- 参考价格:¥7.04-¥7.66
LM49120TLX/NOPB 供应商
- 公司
- 型号
- 品牌
- 封装/批号
- 数量
- 地区
- 日期
- 说明
- 询价
-
TI
-
原厂原装
22+ -
3288
-
上海市
-
-
-
一级代理原装
LM49120TLX/NOPB 中文资料属性参数
- 制造商:National Semiconductor (TI)
- 产品:Class-AB
- 输出功率:1.3 W x 1 at 8 Ohms, 0.085 W x 2 at 32 Ohms
- 输出类型:1-Channel Mono, 2-Channel Stereo
- 共模抑制比(最小值):61 dB (Typ)
- THD + 噪声:0.05 %, 0.015 %
- 电源电流:7.2 mA at 5 V
- 最大工作温度:+ 85 C
- 安装风格:SMD/SMT
- 封装 / 箱体:uSMD
- 封装:Reel
- 音频负载电阻:32 Ohms
- 双重电源电压:3 V, 5 V
- 输入信号类型:Differential
- 最小工作温度:- 40 C
- 输出信号类型:Differential, Single
- 工厂包装数量:3000
- 电源类型:Dual
产品特性
- 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
- Output Power at VDD = 5V:Speaker: RL = 8Ω BTL, THD+N ≤ 1%: 1.3W (typ)Headphone: RL = 32Ω, SE, THD+N ≤ 1%: 85mW (typ)
- 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)
- 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)
- Speaker: RL = 8Ω, BTL, THD+N ≤ 1%: 540mW (typ)
- Headphone: RL = 32Ω, OCL/SE, THD+N ≤ 1%: 35mW (typ)
产品概述
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.
LM49120TLX/NOPB 电路图

LM49120TLX/NOPB 电路图
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