LM4808MMX

The LM4808MMX is one member of the LM4808 family which is designed as the dual 105mW headphone amplifier that can be used in wide range of applications such as:(1)headphone amplifier; (2)personal computers; (3)microphone preamplifier; (4)PDA's. This device features an externally controlled, active-low, micropower consumption shutdown mode, and is optimally suited for low-power portable systems.

Features of the LM4808MMX are:(1)Active-low shutdown mode; (2)"Click and Pop" reduction circuitry; (3)Low shutdown current; (4)LLP, MSOP, and SO surface mount packaging; (5)No bootstrap capacitors required; (6)Unity-gain stable. And the key specifications of this device are:(1)THD+N at 1kHz at 105mW continuous average power into 16 0.1% (typ); (2)THD+N at 1kHz at 70mW continuous average power into 32 0.1% (typ); (3)Shutdown Current 0.4A (typ).

The absolute maximum ratings of the LM4808MMX can be summarized as:(1)Supply Voltage: 6.0 V;(2)Storage Temperature: -65°C to +150°C;(3)ESD Susceptibility: 3.5 kV;(4)ESD Machine model: 250 V;(5)Junction Temperature: 150°C;(6)Soldering Information Small Outline Package Vapor Phase (60 sec.): 215°C;(7)Temperature Range TMIN TA TMAX: -40°C T A 85°C.

The electrical characteristics of this device can be summarized as:(1)Supply Current: 1.4 to 3 mA (max);(2)Shutdown Current: 0.4 to 2 A(max);(3)Output Offset Voltage: 4.0 to 50 mV(max);(4)Total Harmonic Distortion: 0.3 %;(5)Channel Separation: 70 dB;(6)Power Supply Rejection Ratio: 70 dB;(7)Shutdown Voltage Input High: 0.8 x VDD V (min);(8)Shutdown Voltage Input Low: 0.2 x VDD V (max). If you want to know more information about it, please download the datasheet in www.seekic.com or www.chinaicmart.com .