LM49100GR

所属类别：音频放大器
产品名称：单声道AB类音频子系统，系统与地面真耳机放大器
厂商：NSC
生产批号：10+
封装：ROHS
库存状态：有库存
库存量：3500
最低订购量：1
详细资料：

Product Introduction

peculiarity

Mono and stereo inputs
Thermal overload protection
Headphone driver on the ground
I 2 C control interface
Input silent attenuation
Stage 2 headphone attenuator
Digital volume control with 32 steps
10 working modes
Minimal external components
Click inhibition
Micropower shutdown
Save 3mm x 3mm GR package of 25 bumps in available space
RF suppression

illustrate

LM49100 is a fully integrated audio subsystem capable of delivering a continuous average power of 1.275W, 1% THD+N, and 5V power in a mono 8Ω bridge load (BTL). LM49100 also has a stereo real terrestrial headphone amplifier capable of a continuous average power of 50mW per channel to a 32Ω single-ended (SE) load with 1% THD+N

LM49100 has three input channels. Dual SE inputs and stereo signals are available. The other input channels are fully differential and can be used for mono input signals. LM49100 features 32-step digital volume control and 10 different output modes. Mixer, volume control and device mode selection control, via I 2 C compatible interface.

Overheating protection against damage to equipment under fault conditions. Advanced click suppression eliminates audible transient noise when power-up/down and off.

Key specifications:

■ Power output at V DD = 5V: Speaker (LS): R L =8Ω，THD + N ≤ 1％	1.275W
Headphones (HP's V DD = 2.8V): R L =32Ω，THD + N ≤ 1％	50MW
■ Turn off the current	0.01μA

apply

mobile phone
handheld computer
laptop
Portable electronics

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