LM4908 Datasheet | National Semiconductor

Description The LM4908 is a dual audio power amplifier capable of delivering 120m W per channel of continuous average power into a 16Ω load with 0.1% (THD+N) from a 5V power supply. Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external ponents using surface mount packaging. Since the LM4908 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems. The unity-gain stable LM4908 can be configured by external gain-setting resistors. j Output power at 0.1% THD+N at 1k Hz into 32Ω 75m W (typ) Features n n n n n n Up to 10k V ESD protection on all pins MSOP, SOP, and LLP surface mount packaging Switch on/off click suppression Excellent power supply ripple rejection Unity-gain stable Minimum external ponents Key Specifications j THD+N at 1k Hz at 120m W continuous average output power into 16Ω j THD+N at 1k Hz at 75m W Applications n Headphone Amplifier n Personal puters n Portable electronic devices 0.1% (typ) continuous average output power into 32Ω 0.1% (typ) Typical Application - Refer to the Application Information Section for information concerning proper selection of the input and output coupling capacitors. FIGURE 1. Typical Audio Amplifier Application Circuit Boomer ® is a registered trademark of National Semiconductor Corporation. © 2004 National Semiconductor Corporation DS200752 .national. Connection Diagrams SOP (MA) and MSOP (MM) Package .. Top View Order Number LM4908MA, LM4908MM See NS Package Number M08A, MUA08A LLP (LQ) Package 200752A2 Top View Order Number LM4908LQ See NS Package Number LQB08A .national. Absolute Maximum Ratings (Note 3) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage Storage Temperature Input Voltage Power Dissipation (Note 4) ESD...