 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
LM4982 Datasheet(PDF) 1 Page - National Semiconductor (TI) |
|
|
|
|||||||||||||||||||||||||||||
LM4982 Datasheet(HTML) 1 Page - National Semiconductor (TI) |
|
|
1 / 21 page  LM4982 Ground-Referenced, Ultra Low Noise, 80mW Stereo Headphone Amplifier with IntelliSense and I2C Volume Control General Description The LM4982 is a ground referenced, variable gain audio power amplifier capable of delivering 80mW of continuous average power into a 16 Ω single-ended load with less than 1% THD+N from a 3V power supply. The I 2C volume control allows +18 to -76 dB gain settings. The LM4982 utilizes advanced charge pump technology to generate the LM4982’s negative supply voltage. This elimi- nates the need for output-coupling capacitors typically used with single-ended loads. IntelliSense is a new circuit technology that allows the LM4982 to detect whether a mono or stereo headphone plug has been inserted into the output jack. Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4982 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 LM4982 incorporates selectable low-power consump- tion shutdown and channel select modes. The LM4982 contains advanced pop & click circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions. Key Specifications j Improved PSRR at 217Hz 66dB j Stereo Output Power at VDD = 3V, R L =32 Ω, THD+N = 1% 51mW (typ) j Shutdown current 0.1µA (typ) Features n Ground referenced outputs n I 2C Volume and mode controls n Available in space-saving micro SMD package n Ultra low current shutdown mode n Advanced pop & click circuitry eliminates noises during turn-on and turn-off transitions n 1.6 – 4.0V operation n No output coupling capacitors, snubber networks, bootstrap capacitors or gain-setting resistors required n Mono/Stereo headphone detect Applications n Notebook PCs n Desktop PCs n Mobile Phones n PDAs n Portable electronic devices n MP3 Players Boomer® is a registered trademark of National Semiconductor Corporation. February 2006 © 2006 National Semiconductor Corporation DS201614 www.national.com |
Similar Part No. - LM4982 |
|
Similar Description - LM4982 |
|
|
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | Link Exchange | Manufacturer List 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 |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
