LM49150TLEVAL - Texas Instruments

LM49150TLEVAL Mono Class D Audio Subsystem

The LM49150 is a fully integrated audio subsystem designed for portable handheld applications such as cellular phones. Part of TI's PowerWise™ product family, the LM49150 consumes very low power in the various modes of operation and still providing great audio performance. The LM49150 combines a 1.25W mono E2S (Enhanced Emission Suppression) class D amplifie.

Features

1
•23 E2S Class D Amplifier
• Ground Referenced Headphone Outputs — Eliminates Output Coupling Capacitors
• I2C Volume and Mode Control
• Mono Earpiece Amplifier
• Flexible Output for Speaker and Headphone Output
• 20
  –Bump DSBGA Package
• Soft Enable Function
• “Click and Pop” Suppression Circuitry
• Thermal Shutdown Protection
• Low Supply Current
• Micro-Power Shutdown KEY SPECIFICATIONS
• Output power at VDD = 5V:
  – Speaker: RL = 8Ω BTL, THD+N ≤ 1%: 1.25W (typ)
  – Headphone: RL = 32Ω SE, THD+N ≤ 1%: 42mW (typ)
  – Earpiece: RL = 8Ω SE, THD+N ≤ 1%: 135mW (typ)
• Output power at VDD = 3.3V:
  – Sp.