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LM49100GR

Category:Audio amplifier
Product Name:Mono Class AB audio subsystem, system with true terrestrial headphone amplifier
Manufacturers:NSC
Production Batch Number:10+
Encapsulation:ROHS
Stock Status:There is stock
Stock Quantity:3500
Minimum order quantity: 1
Details:

Product introduction

peculiarity

Mono and stereo inputs
Thermal overload protection
True ground headphone driver
I 2 C control interface
Input mute attenuation
Stage 2 headphone attenuator
Digital volume control in 32 steps
10 operating modes
Minimal external components
Click inhibition
Micropower shutdown
Save 3mm x 3mm in the available space with 25mm solder balls for the GR package
RF rejection

illustrate

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

The LM49100 has three input channels. Can be used for dual SE input and stereo signals. The other input channels are fully differential and can be used for mono input signals. The LM49100 features a 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 to prevent damage to the device under fault conditions. Advanced click suppression eliminates power-up/down and audible transient noise when off.

Main specifications

■ Power output in V_DD= 5V： Speaker (LS): _RL =8Ω，THD + N ≤ 1％	1.275W
Headset (HP's V_DD= 2.8V）： _RL =32Ω，THD + N ≤ 1％	50MW
■ Shutdown current	0.01μA

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mobile phone
Pocket PC
laptop
Portable electronics

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