Motor de Búsqueda de Datasheet de Componentes Electrónicos |
|
LM48860 Datasheet(PDF) 1 Page - National Semiconductor (TI) |
|
|
LM48860 Datasheet(HTML) 1 Page - National Semiconductor (TI) |
1 / 18 page October 17, 2008 LM48860 Ground-Referenced, Ultra Low Noise, Fixed Gain Stereo Headphone Amplifier General Description The LM48860 is a ground referenced, fixed-gain audio power amplifier capable of delivering 40mW per channel of contin- uous average power into a 16 Ω single-ended load with less than 1% THD+N from a 3V power supply. The LM48860 features a new circuit technology that utilizes a charge pump to generate a negative reference voltage. This allows the outputs to be biased about ground, thereby elimi- nating output-coupling capacitors typically used with normal single-ended loads. Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM48860 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other low voltage appli- cations where minimal power consumption is a primary re- quirement. The LM48860 features a low-power consumption shutdown mode selectable for either channel separately. This is accom- plished by driving either the SD_RC (Shutdown Right Chan- nel) or SD_LC (Shutdown Left Channel) (or both) pins with logic low, depending on which channel is desired shutdown. Additionally, the LM48860 features an internal thermal shut- down protection mechanism. The LM48860 contains advanced pop & click circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions. The LM48860 has an internal fixed gain of 1.5V/V. Key Specifications ■ PSRR at 217Hz (V DD = 3.0V) 80dB (typ) ■ Stereo Power Output at V DD = 3V R L = 16Ω, THD+N = 1% 40mW (typ) ■ Shutdown Current 0.1μA (typ) ■ Internal Fixed Gain 1.5V/V (typ) ■ Operating Voltage 2.0V to 5.5V Features ■ Fixed logic levels with supply voltage ■ Ground referenced outputs ■ High PSRR ■ Available in space-saving micro SMD package ■ Ultra low current shutdown mode ■ Improved pop & click circuitry eliminates noises during turn-on and turn-off transitions ■ No output coupling capacitors, snubber networks, bootstrap capacitors, or gain-setting resistors required ■ Shutdown either channel independently Applications ■ Mobile Phones ■ MP3 Players ■ PDAs ■ Portable electronic devices ■ Notebook PCs Boomer® is a registered trademark of National Semiconductor Corporation. © 2008 National Semiconductor Corporation 300068 www.national.com |
Número de pieza similar - LM48860 |
|
Descripción similar - LM48860 |
|
|
Enlace URL |
Política de Privacidad |
ALLDATASHEET.ES |
¿ALLDATASHEET es útil para Ud.? [ DONATE ] |
Todo acerca de Alldatasheet | Publicidad | Contáctenos | Política de Privacidad | Intercambio de Enlaces | Lista de Fabricantes All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |