Texas Instruments TPA0253 User's Manual
Contents
1. This section includes the TPA0253 EVM schematic the EVM parts list and the 2 5 1 EVM Schematic Figure 2 5 shows the TPA0253 EVM schematic Figure 2 5 TPA0253 EVM Schematic Diagram C2 R2 50kQ 47 uF uds R3 r4 TPA0253 e Lin 12kQ0 c SHUT DOWN T S1 No Ri i 100 kQ ce R4 50kQ 0 47 uF dd T Rin 12ko C5 m s la Ro Mo 0 47 uF VDD i 4 STEREO GND c3 cl R7 100 kQ MONO 10 uF 1 ur 2 7 2 5 2 EVM Parts List Table 2 2 is the TPA0253 EVM parts list Table 2 2 TPA0253 EVM Parts List s EVM Manufacturer Ref Description Size Qty Part Number Vendor Number C1 C4 Capacitor 1 uF 16 V 1206 2 Murata Arrow 80 20 nonpolarized GRM42 6Y5V105Z16BL GRM426Y5V105Z 016 C2 C5 Capacitor 0 47 uF 16 V 0805 3 Murata Arrow C6 80 20 nonpolarized GRM40 Y5V474716 GRM40Y5V474Z 016 C3 Capacitor 10 uF 9 6 3 V A 1 Panasonic Digi Key ECS TOJY106R PCS1106CT ND C7 C8 Capacitor 220 uF O 10 V 7 3 mm L 2 Sanyo POSCAP 4 3 mm W 10TPB220M R2 R4 Potentiometer 50 kO 1 2 W 2 Bourns Digi Key through hole 3323P 50K 3323P 503 ND R6 R9 Resistor 1 kO 1 10 W 596 0805 2 Panasonic Digi Key ERJ 6GEYJ102V P1 0KACT ND R1 R7 Resistor 100 kQ 1 10 W 0805 3 Panasonic Digi Key R8 596 ERJ 6GEYJ104V P100KACT ND R3 R5 Resistor 12 kO 1 10 W 596 0805 2 Panasonic Digi Key ERJ 6GEYJ123V P12KACT ND S1 Switch momentary 12. automatically making all signal control and power connections Platform provides flexible power options Jumpers on the platform select power and module control options Switches on the platform route signals Platform provides quick and easy audio input and output connections Platform power options m External 5 V 15 V DC Vcc supply inputs B External regulated Vpp supply input B Socket for onboard 5 V 3 3 V Vpp voltage regulator EVM BH Onboard overvoltage and reverse polarity power protection Platform audio input and output connections B Left and right RCA phono jack inputs B Miniature stereo phone jack input B Mono right RCA phono jack output m Mono right compression speaker terminal output mH Miniature stereo headphone jack output 1 2 Introduction 1 2 Description Description The TPA0253 audio power amplifier evaluation module is a complete 1 watt mono audio power amplifier with stereo headphone drive It consists of the TI TPA0253 mono 1 W audio power amplifier IC along with a small number of other parts mounted on a circuit board that measures approximately 2 1 4 inches by 1 1 2 inches Figure 1 1 Figure 1 1 The TI TPA0253 Audio Amplifier Evaluation Module VDDO OGND RO MO O GND O LO MO O STEREO MONO O TEXAS INSTRUMENTS 2000 C8 Ro mn Rs SHUTDOWN O R3 ED ER li C5 SHUTDOWN C3 VDD O GNDO O LIN O GND GND O TPA0253 EVM Board SLOP2
3. Eher 1 1 1 1 Feature Highlights ooooooccoocccnno enn 1 2 1 2 Description sssususssssesssslse sh 1 3 1 8 TPA0253 EVM Specifications sssssssssesse III 1 3 2 Operation 20 20 E ige ee 2 1 21 PrLyeCautlOlis i ios terea di o oo c os RO eee cid 2 2 2 2 Quick Start List for Platform 0 ccc eens 2 3 2 3 Quick Start List for Stand Alone 0 00 cece tte 2 4 2 4 Stand Alone Connection Diagrams 00000 c cece eens 2 5 2 4 1 TPA0253 EVMs Connected for Stereo BTL Output 02 0 5 2 5 2 4 2 TPA0253 EVM Connected for SE Stereo Headphone Output 2 6 2 5 Reference uec iiia i ea ER LUCR a P OUR RUD RU a gcd B RR ed CR RO EU Ru ae 2 7 251 EVM SchemaliC nee desde Shaded beau ds id 2 7 2 5 2 EVM Parts List 242 222 ei es bee Dane 2 8 2 5 8 Module PCB LayerS sssssssssse sese 2 9 Figures 1 1 The TI TPA0253 Audio Amplifier Evaluation Module 0 000 c eee lees 1 3 2 1 Quick Start Platform Map 00 ccc nennen nennen nenn 2 2 22 Modulo MaD restresor nipi nar car parias ar ra aa 2 4 2 3 TPA0253 EVMs Connected for Stereo BTL Output 0 00 2 5 2 4 TPA0253 EVM Connected for Single Ended Stereo Headphone Output 2 6 2 5 TPA0253 EVM Schematic Diagram 20 00 cee eee eee nenn 2 7 2 6 TIPAO258 EVMUPGB etri ror ale rk ae aaa RR pate ee ee 2 9 2 7 TPA0253 EVMISIIKSCIG
4. Panasonic Digi Key EVQ PJS04K P8050SCT ND J1 MINI STEREO PHONE 3 5 mm 1 Mouser JACK PCB MOUNT 161 3504 Terminal Post Headers 14 Sullins Digi Key PTC36SABN S1022 36 ND U1 IC TPA0253 1 W mono MSOP 10 1 TI audio amplifier TPA0253DGN 2 8 2 5 3 Module PCB Layers The following illustrations depict the TPA0253 EVM PCB layers and silkscreen These drawings are notto scale Gerber plots can be obtained from any TI Sales Office Figure 2 6 TPA0253 EVM PCB vDO OGcnD RO M0 O TEXAS o Pigs INSTRUMENTS o 2000 STEREO MONO O R3 GNDO TPA 253 EVM Board vopOcnDO 9 SLOP270 2 9 Figure 2 8 TPA0253 EVM Bottom Layer 2 10
5. express or implied is granted under any patent right copyright mask work right or other intellectual property right of TI covering or relating to any combination machine or process in which such semiconductor products or services might be or are used Tl s publication of information regarding any third party s products or services does not constitute Tl s approval warranty or endorsement thereof Copyright 2000 Texas Instruments Incorporated Preface Related Documentation From Texas Instruments FCC Warning m TI Plug N Play Audio Amplifier Evaluation Platform literature number SLOUO11 provides detailed information on the evaluation platform and its use with TI audio evaluation modules m TPA0253 1 W Mono Audio Power Amplifier With Headphone Drive literature number SLOS280 This is the data sheet for the TPA0253 audio amplifier integrated circuit This equipment is intended for use in a laboratory test environment only It generates uses and can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to subpart J of part 15 of FCC rules which are designed to provide reasonable protection against radio frequency interference Operation of this equipment in other environments may cause interference with radio communications in which case the user at his own expense will be required to take whatever measures may be required to correct this interference Contents
6. level or adjust potentiometers R2 and R4 on the EVM as needed 2 3 2 3 Quick Start List for Stand Alone Follow these steps to use the TPA0253 EVM stand alone or when connecting it into existing circuits or equipment Connections to the TPA0253 module header pins can be made via individual sockets wire wrapping or soldering to the pins either on the top or the bottom of the module circuit board Numbered callouts for selected steps appear in Figure 2 2 Figure 2 2 Module Map VDDO O GND RO MO O GND O LO MO O STEREO MONO O INSTRUMENTS 2000 dd OLIN c2 O GND SHUTDOWN C3 VDD O GNDO TPA0253 EVM Board Power supply 1 Ensure that all external power sources are set to OFF 2 Connectan external regulated power supply set to 5 V to the module VDD and GND pins taking care to observe marked polarity Inputs and outputs 3 Ensure that audio signal source level adjustments are set to minimum 4 Connectthe right left positive lead of the audio source to the module RIN LIN pins and the negative lead to the GND pin 5 Connect a speaker to the module RO MO and LO MO pins OR plug a headphone into to EVM headphone jack J1 Evaluation module preparations 6 Adjust EVM potentiometers R2 and R4 to approximately mid point Power up 7 Verify correct voltage and input polarity and set the external power supply to ON The EVM should begin operation 8 Adjust the signal source
7. 70 Single in line header pins extend from the underside of the module circuit board to allow the EVM to be plugged into the TI plug n play audio amplifier evaluation platform or to be wired directly into existing circuits and equipment when used stand alone The platform has room for a single TPA0253 evaluation module and is a convenient vehicle for demonstrating Tl s audio power amplifier and related evaluation modules The EVMs simply plug into the platform which automatically provides power to the modules interconnects them correctly and connects them to a versatile array of standard audio input and output jacks and connectors Easy to use configuration controls allow the platform and EVMs to quickly model many possible end equipment configurations There is nothing to build nothing to solder and nothing but the speakers included with the platform to hook up 1 3 TPA0253 EVM Specifications Supply voltage range VDD Hs se sn seen 2 5 V to 5 5 V Supply current IDD rs eresescerrcrrsisre eee eee eee 0 5A max Continuous output power per channel Po 8 Q BTL Vpp 5 V 1W Audio Input Voltage Vj nes Rar Ie da 5 Vp p max Minimum load impedance RL eee eee 80 Introduction 1 3 Introduction Chapter 2 Operation Quick start lists in this chapter contain steps that can be followed to quickly prepare the TI plug n play audio amplifier evaluation platform for use with the TPA0253 audio amplifie
8. On 232 44 822220 0 rr tea 2 9 2 8 11240253 EYM Bottom Layar arena ia 2 10 1 Platform Jumper and Switch Settings for the TPAO253 0c eee eee 2 3 TPA0253 EVM Parts List 0000 cece ee n 2 8 D vi Chapter 1 Introduction This chapter provides an overview of the Texas Instruments TI TPA0253 audio amplifier evaluation module SLOP270 It includes a list of EVM features a brief description of the module illustrated with a pictorial diagram and a list of EVM specifications Topic Page Vel EM Ne EY sononansanononoconocangonoraoncaoasoboan agar 1 2 Us LES NU aanouncdoochossdandanseonsdnonnoannononsdoonooodanr 1 3 1 3XSTIPA0253IEVMiSpecifications creer 1 3 Feature Highlights 1 1 Feature Highlights The TI TPA0253 audio amplifier evaluation module and the TI plug n play audio amplifier evaluation platform include the following features J TPA0253 mono 1 W audio power amplifier with stereo headphone drive evaluation module B Single channel bridge tied load BTL or dual channel single ended operation Internal summing of left and right channels to generate mono signal 1 W output power into 8 Q at 5 V BTL 0 3 W output power into 8 O at 3 V BTL Low current consumption in shutdown mode 1 uA Stereo headphone drive Quick and easy configuration with the TI plug n play audio amplifier evaluation platform B Evaluation module is designed to simply plug into the platform
9. Wi TEXAS INSTRUMENTS TPAO253 Audio Power Amplifier Evaluation Module Users Guide December 2000 Mixed Signal Products SLOU100 IMPORTANT NOTICE Texas Instruments and its subsidiaries TI reserve the right to make changes to their products or to discontinue any product or service without notice and advise customers to obtain the latest version of relevant information to verify before placing orders that information being relied on is current and complete All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgment including those pertaining to warranty patent infringement and limitation of liability TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with Tl s standard warranty Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty Specific testing of all parameters of each device is not necessarily performed except those mandated by government requirements Customers are responsible for their applications using Tl components In order to minimize risks associated with the customer s applications adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards Tl assumes no liability for applications assistance or customer product design TI does not warrant or represent that any license either
10. level or adjust potentiometers R2 and R4 on the EVM as needed 2 4 2 4 Stand Alone Connection Diagrams The power supply range is 2 5 V to 5 5 V and isolated RO MO and LO MO lines for BTL operation are required Note that the source of any shutdown signal applied to the EVM SHUTDOWN pin must be able to sink the current flowing through the pullup resistor on the module 100 kQ when the pin is held low 2 4 1 TPA0253 EVMs Connected for Stereo BTL Output Figure 2 3 shows two TPA0253 EVMs connected for stereo BTL operation Figure 2 3 TPA0253 EVMs Connected for Stereo BTL Output 5 VDC VDD TEXAS INSTRUMENTS Audio 2000 Input gt gt Right ED OLIN c2 O GND SHUTDOWN TPA0253 EVM Board TEXAS INSTRUMENTS 2000 Audio Input gt LIN Left SHUTDOWN c3 I TPA0253 EVM Board VDD O GNDO Right GND O SLOP270 Left 2 5 2 4 TPA0253 EVM Connected for Single Ended Stereo Headphone Output Figure 2 4 shows a TPA0253 EVM connected for single ended stereo headphone operation Figure 2 4 TPA0253 EVM Connected for Single Ended Stereo Headphone Output 5 VDC RO MO O GND O uum TEXAS INSTRUMENTS LOMO O 2000 STEREO MONO amp 5 VDC Audio Input gt a Right A R7 Ro E Re SHUTDOWN O VDD Audio Input gt Left SHUTDOWN C3 GND O TPA0253 EVM Board VDD O GN SLOP270 2 6 2 5 Reference module PCB layers
11. oards with power applied damage to the EVM board the platform or both may result Figure 2 1 Quick Start Platform Map oF D m y E Q DC e Power In Out Power p Input AGO go L a lt 7 R1 Sm oF 89 OS ES Signal Conditioning S 3 Bu O 2 Oz Je i Audio m Speaker Input e O d j mr oy s gt go e O N 8 Ob gt EE ll CAUTION Do not insert or remove Eo EVM boards with power applied oZzn Headphone Plug N Play Audio Amplifier Pan Output Evaluation Platform 23 Out E Sa O 5 SLOP097 Rev C 1 a BO 2 2 2 2 Quick Start List for Platform Follow these steps when using the TPA0253 EVM with the TI plug n play audio amplifier evaluation platform see the platform user s guide SLOUO11 for additional details Table 2 1 shows typical platform jumper and switch settings and numbered callouts for selected steps appear in Figure 2 1 Table 2 1 Platform Jumper and Switch Settings for the TPA0253 mum Jrs 3 5 9 PNP prom Mode x m lez X Notes 1 X Don t care 2 Set S2to ON when signal conditioning board is installed in U1 set S2 to OFF when no signal conditioning board is installed Platform preparations 1 Ensurethatall external power sources are set
12. r EVM or to connect the TPA0253 audio amplifier EVM for stand alone operation Using the TPA0253 audio amplifier evaluation module with the TI evaluation platform is a quick and easy way to connect power signal and control inputs and signal outputs to the EVM using standard connectors The TPA0253 audio amplifier evaluation module can also be used stand alone by making connections directly to the module pins and it can be wired directly into existing circuits or equipment Stand alone connection diagrams appear below A schematic parts list and PCB and layer illustrations for the EVM are included in the Reference section of this chapter Topic Page 2 1 PRECAUTIONS svn wise ccs net eus eese eise eie sisse rr n aee Es 2 2 2 2 Quick Start ListioriPlatorm a 2 3 2 3 Quick Start List for Stand Alone oooooocccccccconn nen 2 4 2 4 Stand Alone Connection Diagrams Leeueeeeeee 2 5 2 5 Reference 7 0 toallas 2 7 2 1 2 1 Precautions Power Supply Input Polarity and Maximum Voltage Always ensure that the polarity and voltage of the external power connected to Vcc power input connector J1 J2 and or Vpp power input connector J6 are correct Overvoltage or reverse polarity power applied to these terminals can open onboard soldered in fuses and cause other damage to the platform installed evaluation modules and or the power source Inserting or Removing EVM Boards Do not insert or remove EVM b
13. to OFFand thatthe platform power switch S1 is set to OFF 2 Install a TPA0253 module in platform socket U2 taking care to align the module pins correctly 3 Use switch S2 to select or bypass the signal conditioning EVM U1 4 Set Mode Mute jumper JP6 to Mode and Polarity jumper JP8 to Hi UY Power supply 5 Selectand connect the power supply ensure power supply is setto OFF a Connectanexternal regulated power supply setto5 V to platform Vpp power input connector J6 taking care to observe marked polarity or b Install a voltage regulator EVM SLVP097 or equiv in platform socket U6 Connect a 7 V 12 V power source to a platform Vcc power input J1 or J2 and jumper the appropriate power input see platform user s guide Inputs and outputs 6 Ensure that the audio signal source level is set to minimum 7 Connectthe audio source to left and right RCA phono jacks J3 and J5 or stereo miniature phone jack J4 8 Connect the speaker to the right RCA jack J7 or to the stripped wire speaker connector J8 Make sure the speaker is connected to the Right and terminals J Power Up 9 Verify correct voltage and input polarity and set the external power supply to ON If Vcc and an onboard regulator EVM are used to provide Vpp set platform power switch S1 to ON Platform LED2 should light indicating the presence of Vpp and the evaluation modules installed on the platform should begin operation 10 Adjust the signal source
Download Pdf Manuals
Related Search