|
|
PDF LM2896 Data sheet ( Hoja de datos )
| Número de pieza | LM2896 | |
| Descripción | Dual Audio Power Amplifier | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de LM2896 (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
|
No Preview Available !
February 1995
LM1896 LM2896 Dual Audio Power Amplifier
General Description
The LM1896 is a high performance 6V stereo power amplifi-
er designed to deliver 1 watt channel into 4X or 2 watts
bridged monaural into 8X Utilizing a unique patented com-
pensation scheme the LM1896 is ideal for sensitive AM
radio applications This new circuit technique exhibits lower
wideband noise lower distortion and less AM radiation than
conventional designs The amplifier’s wide supply range
(3V – 9V) is ideal for battery operation For higher supplies
(VS l 9V) the LM2896 is available in an 11-lead single-in-
line package The LM2896 package has been redesigned
resulting in the slightly degraded thermal characteristics
shown in the figure Device Dissipation vs Ambient Tempera-
ture
Features
Y Low AM radiation
Y Low noise
Y 3V 4X stereo Po e 250 mW
Y Wide supply operation 3V – 15V (LM2896)
Y Low distortion
Y No turn on ‘‘pop’’
Y Adjustable voltage gain and bandwidth
Y Smooth waveform clipping
Y Po e 9W bridged LM2896
Applications
Y Compact AM-FM radios
Y Stereo tape recorders and players
Y High power portable stereos
Typical Applications
TL H 7920 – 1
FIGURE 1 LM2896 in Bridge Configuration (AV e 400 BW e 20 kHz)
Order Number LM1896N Order Number LM2896P
See NS Package Number N14A See NS Package Number P11A
C1995 National Semiconductor Corporation TL H 7920
RRD-B30M115 Printed in U S A
1 page  
Typical Applications (Continued)
6 9 No connection on LM1896
( ) Indicates pin number for LM2896
TL H 7920 – 7
FIGURE 2 Stereo Amplifier with AV e 200 BW e 30 kHz
TL H 7920 – 8
External Components (Figure 2)
Components
1 R2 R5 R10 R13
2 R3 R12
3 Ro
4 C1 C14
5 C2 C13
6 C3 C12
7 C5 C10
8 C7
9 Cc
10 Co
11 CS
Comments
Sets voltage gain AV e 1 a R5 R2 for one channel and AV e 1 a R10 R13
for the other channel
Bootstrap resistor sets drive current for output stage and allows pins 3 and 12 to
go above VS
Works with Co to stabilize output stage
Input coupling capacitor Pins 1 and 14 are at a DC potential of VS 2 Low
frequency pole set by
1
fL e 2q RIN C1
Feedback capacitors Ensure unity gain at DC Also a low frequency pole at
1
fL e 2qR2C2
Bootstrap capacitors used to increase drive to output stage A low frequency
pole is set by
1
fL e 2qR3C3
Compensation capacitor These stabilize the amplifiers and adjust their
bandwidth See curve of bandwidth vs allowable gain
Improves power supply rejection (See Typical Performance Curves) Increasing
C7 increases turn-on delay
Output coupling capacitor Isolates pins 5 and 10 from the load Low frequency
pole set by
1
fL e 2q CcRL
Works with Ro to stabilize output stage
Provides power supply filtering
5
5 Page 
IMPORTANT NOTICE
Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements,
and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should
obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are
sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment.
TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard
warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where
mandated by government requirements, testing of all parameters of each product is not necessarily performed.
TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and
applications using TI components. To minimize the risks associated with customer products and applications, customers should provide
adequate design and operating safeguards.
TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right,
or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information
published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a
warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual
property of the third party, or a license from TI under the patents or other intellectual property of TI.
Reproduction of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied
by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive
business practice. TI is not responsible or liable for such altered documentation. Information of third parties may be subject to additional
restrictions.
Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all
express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not
responsible or liable for any such statements.
TI products are not authorized for use in safety-critical applications (such as life support) where a failure of the TI product would reasonably
be expected to cause severe personal injury or death, unless officers of the parties have executed an agreement specifically governing
such use. Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products
and any use of TI products in such safety-critical applications, notwithstanding any applications-related information or support that may be
provided by TI. Further, Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products in
such safety-critical applications.
TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products are
specifically designated by TI as military-grade or "enhanced plastic." Only products designated by TI as military-grade meet military
specifications. Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is solely at
the Buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use.
TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products are
designated by TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated
products in automotive applications, TI will not be responsible for any failure to meet such requirements.
Following are URLs where you can obtain information on other Texas Instruments products and application solutions:
Products
Audio
Amplifiers
Data Converters
DLP® Products
DSP
Clocks and Timers
Interface
Logic
Power Mgmt
Microcontrollers
RFID
OMAP Mobile Processors
Wireless Connectivity
Applications
www.ti.com/audio
Communications and Telecom www.ti.com/communications
amplifier.ti.com
Computers and Peripherals www.ti.com/computers
dataconverter.ti.com
Consumer Electronics
www.ti.com/consumer-apps
www.dlp.com
Energy and Lighting
www.ti.com/energy
dsp.ti.com
Industrial
www.ti.com/industrial
www.ti.com/clocks
Medical
www.ti.com/medical
interface.ti.com
Security
www.ti.com/security
logic.ti.com
Space, Avionics and Defense www.ti.com/space-avionics-defense
power.ti.com
Transportation and Automotive www.ti.com/automotive
microcontroller.ti.com
Video and Imaging
www.ti.com/video
www.ti-rfid.com
www.ti.com/omap
www.ti.com/wirelessconnectivity
TI E2E Community Home Page
e2e.ti.com
Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265
Copyright © 2011, Texas Instruments Incorporated
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet LM2896.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| LM2893 | LM1893/LM2893 Carrier-Current Transceiver | National Semiconductor |
| LM2893M | LM1893/LM2893 Carrier-Current Transceiver | National Semiconductor |
| LM2893N | LM1893/LM2893 Carrier-Current Transceiver | National Semiconductor |
| LM2896 | Dual Audio Power Amplifier | National Semiconductor |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |