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LM49100
www.ti.com
SNAS392F – JUNE 2007 – REVISED MAY 2013
LM49100
Mono Class AB Audio Sub-System with a TrueGround Headphone Amplifier
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FEATURES
1
•2 Mono and Stereo Inputs • Thermal Overload Protection • True-Ground Headphone Drivers • I2C Control Interface • Input Mute Attenuation • 2nd Stage Headphone Attenuator • 32-Step Digital Volume Control • 10 Operating Modes • Minimum External Components • Click and Pop Suppression • Micro-Power Shutdown • Available in Space-Saving 3mm x 3mm
25-Bump csBGA Package • RF Suppression
KEY SPECIFICATIONS
• Power Output at VDD = 5V: – Loudspeaker (LS): – RL = 8Ω, THD+N ≤: 1% 1.275W – Headphone (VDDHP = 2.8V): – RL = 32Ω, THD+N ≤ 1%: 50mW
• Shutdown current 0.