Texas Instruments AN-1922 LM48511 Скачать руководство пользователя страница 15

IMPORTANT NOTICE

Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other
changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest
issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and
complete. All semiconductor products (also referred to herein as “components”) are sold subject to TI’s terms and conditions of sale
supplied at the time of order acknowledgment.

TI warrants performance of its components to the specifications applicable at the time of sale, in accordance with the warranty in TI’s terms
and conditions of sale of semiconductor products. Testing and other quality control techniques are used to the extent TI deems necessary
to support this warranty. Except where mandated by applicable law, testing of all parameters of each component is not necessarily
performed.

TI assumes no liability for applications assistance or the design of Buyers’ products. Buyers are responsible for their products and
applications using TI components. To minimize the risks associated with Buyers’ products and applications, Buyers should provide
adequate design and operating safeguards.

TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or
other intellectual property right relating to any combination, machine, or process in which TI components or services are used. Information
published by TI regarding third-party products or services does not constitute a license 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 significant portions 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. TI is not responsible or liable for such altered
documentation. Information of third parties may be subject to additional restrictions.

Resale of TI components or services with statements different from or beyond the parameters stated by TI for that component or service
voids all express and any implied warranties for the associated TI component or service and is an unfair and deceptive business practice.
TI is not responsible or liable for any such statements.

Buyer acknowledges and agrees that it is solely responsible for compliance with all legal, regulatory and safety-related requirements
concerning its products, and any use of TI components in its applications, notwithstanding any applications-related information or support
that may be provided by TI. Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards which
anticipate dangerous consequences of failures, monitor failures and their consequences, lessen the likelihood of failures that might cause
harm and take appropriate remedial actions. Buyer will fully indemnify TI and its representatives against any damages arising out of the use
of any TI components in safety-critical applications.

In some cases, TI components may be promoted specifically to facilitate safety-related applications. With such components, TI’s goal is to
help enable customers to design and create their own end-product solutions that meet applicable functional safety standards and
requirements. Nonetheless, such components are subject to these terms.

No TI components are authorized for use in FDA Class III (or similar life-critical medical equipment) unless authorized officers of the parties
have executed a special agreement specifically governing such use.

Only those TI components which TI has specifically designated as military grade or “enhanced plastic” are designed and intended for use in
military/aerospace applications or environments. Buyer acknowledges and agrees that any military or aerospace use of TI components
which have not been so designated is solely at the Buyer's risk, and that Buyer is solely responsible for compliance with all legal and
regulatory requirements in connection with such use.

TI has specifically designated certain components as meeting ISO/TS16949 requirements, mainly for automotive use. In any case of use of
non-designated products, TI will not be responsible for any failure to meet ISO/TS16949.

Products

Applications

Audio

www.ti.com/audio

Automotive and Transportation

www.ti.com/automotive

Amplifiers

amplifier.ti.com

Communications and Telecom

www.ti.com/communications

Data Converters

dataconverter.ti.com

Computers and Peripherals

www.ti.com/computers

DLP® Products

www.dlp.com

Consumer Electronics

www.ti.com/consumer-apps

DSP

dsp.ti.com

Energy and Lighting

www.ti.com/energy

Clocks and Timers

www.ti.com/clocks

Industrial

www.ti.com/industrial

Interface

interface.ti.com

Medical

www.ti.com/medical

Logic

logic.ti.com

Security

www.ti.com/security

Power Mgmt

power.ti.com

Space, Avionics and Defense

www.ti.com/space-avionics-defense

Microcontrollers

microcontroller.ti.com

Video and Imaging

www.ti.com/video

RFID

www.ti-rfid.com

OMAP Applications Processors

www.ti.com/omap

TI E2E Community

e2e.ti.com

Wireless Connectivity

www.ti.com/wirelessconnectivity

Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265

Copyright © 2013, Texas Instruments Incorporated

Содержание AN-1922 LM48511

Страница 1: ...1SQ Demonstration Board 2 Quick Start Guide Step 1 Apply a 3 0V to 5 5V power supply voltage to the VDD pin with respect to the ground GND pin Step 2 Set connectors SD_Amp SS_En Enable SD_Boost to Hig...

Страница 2: ...rtable devices such as GPS mobile phones and MP3 players The high 80 efficiency at 5V extends battery life when compared to boosted Class AB amplifiers Independent regulator and amplifier shutdown con...

Страница 3: ...cuit 7 Connections Table 1 LM48511 Demonstration Board Connections Designator Function or Use Supply Voltage VDD The supply voltage operating range is from 3 0V to 5 5V but the absolute maximum rating...

Страница 4: ...e 1 LM48511 Demonstration Board Connections continued Designator Function or Use Set the FB_SEL High for PV1 VFB 1 25 5k 4 87k where VFB 1 23V FB_SEL Set the FB_SEL Low for PV1 VFB 1 25 5k 9 31k where...

Страница 5: ...NCY www ti com Typical Performance Characteristics THD N vs Output Power THD N vs Output Power VDD 3 6V RL 8 VDD 3V RL 8 f 1kHz filter 22kHz PV1 7V f 1kHz filter 22kHz PV1 4 8V THD N vs Output Power T...

Страница 6: ...0 0 0 OUTPUT POWER W EFFICIENCY 0 5 1 0 1 5 2 0 2 5 80 10 Typical Performance Characteristics www ti com Boost Amplifier vs Output Power Boost Amplifier vs Output Power VDD 5V RL 8 VDD 3 6V RL 8 f 1k...

Страница 7: ...PECTRUM FIXED FREQUENCY 0 20 40 60 80 100 20 200 2k 20k PSRR dB FREQUENCY Hz FIXED FREQUENCY SPREAD SPECTRUM www ti com Typical Performance Characteristics PSRR vs Frequency PSRR vs Frequency VDD 3 6V...

Страница 8: ...SSIPATION W 0 4 0 OUTPUT POWER W 0 2 0 4 0 6 0 8 1 0 1 2 1 4 1 6 0 5 1 0 1 5 2 0 2 5 3 0 3 5 1 8 0 Typical Performance Characteristics www ti com Power Dissipation vs Output Power Supply Current vs Su...

Страница 9: ...LOAD CURRENT A EFFICIENCY 0 1 0 2 0 3 0 4 0 5 80 10 www ti com Typical Performance Characteristics Boost Converter Efficiency Boost Converter Efficiency vs vs ILOAD DC ILOAD DC VDD 5V PV1 7 8V VDD 3...

Страница 10: ...e distance priority to the quiet ground 10 Bill Of Materials Designator Description Footprint Qty Value Cf1 CHIP CAPACITOR GENERIC CAP 0805 1 470pF CINA CHIP CAPACITOR GENERIC CAP 1210 1 1 F CINB CHIP...

Страница 11: ...ion Board PCB Layout Figure 3 Top Silkscreen Figure 4 Top Layer 11 SNAA064C November 2008 Revised May 2013 AN 1922 LM48511 Evaluation Board Submit Documentation Feedback Copyright 2008 2013 Texas Inst...

Страница 12: ...PCB Layout www ti com Figure 5 Mid Layer 1 Figure 6 Mid Layer 2 12 AN 1922 LM48511 Evaluation Board SNAA064C November 2008 Revised May 2013 Submit Documentation Feedback Copyright 2008 2013 Texas Inst...

Страница 13: ...on Board PCB Layout Figure 7 Bottom Layer Figure 8 Bottom Overlay 13 SNAA064C November 2008 Revised May 2013 AN 1922 LM48511 Evaluation Board Submit Documentation Feedback Copyright 2008 2013 Texas In...

Страница 14: ...the title of Table 1 from LME49600 to LM48511 Edited Table 1 Demonstration Board Connections Edited Figure 2 Typical LM48511 Audio 1 02 10 18 12 Amplifier Circuit 14 AN 1922 LM48511 Evaluation Board S...

Страница 15: ...sponsible for compliance with all legal regulatory and safety related requirements concerning its products and any use of TI components in its applications notwithstanding any applications related inf...

Отзывы: