LM4838MTEX/NOPB National Semiconductor, LM4838MTEX/NOPB Datasheet
LM4838MTEX/NOPB
Specifications of LM4838MTEX/NOPB
Related parts for LM4838MTEX/NOPB
LM4838MTEX/NOPB Summary of contents
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... Note 2: An LM4838LQ and LM4838MTE that have been properly mounted to the circuit board and forced-air cooled will deliver 2.2W into 3Ω. Block Diagram Boomer ® registered trademark of NationalSemiconductor Corporation. © 2004 National Semiconductor Corporation Key Specifications THD+N O into 3Ω (LQ & MTE) n into 4Ω ...
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Connection Diagrams See NS Package Number LQA028AA for Exposed-DAP LLP See NS Package Number MXA28A for Exposed-DAP TSSOP www.national.com LLP Package Top View Order Number LM4838LQ TSSOP Package Top View Order Number LM4838MT See NS Package Number MTC28 for TSSOP ...
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Connection Diagrams 6 NC Right Out - 5 GND Right Gain 2 4 Bypass Sense NC 2 GND Left Gain Left Out - Pin A Designator (Continued) 36 Bump micro SMD 20013388 Top View ...
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Connection Diagrams 7 Right Out - Right Gain 1 6 Right Out - Right Gain 2 5 VDD VDD 4 Right Out + Right Out + 3 GND GND 2 Shutdown Gain Select 1 Mode Mute Pin A Designator www.national.com ...
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... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage Storage Temperature Input Voltage Power Dissipation (Note 11) ESD Susceptibility (Note 12) ESD Susceptibility (Note 13) Junction Temperature Soldering Information Small Outline Package Vapor Phase (60 sec ...
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Electrical Characteristics for Single-Ended Mode Operation 10) (Continued) The following specifications apply for V Symbol Parameter THD+N Total Harmonic Distortion+Noise PSRR Power Supply Rejection Ratio SNR Signal to Noise Ratio X Channel Separation talk Electrical Characteristics for Bridged Mode Operation ...
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Electrical Characteristics for Bridged Mode Operation Note 16: All bumps have the same thermal resistance and contribute equally when used to lower thermal resistance. The LM4838ITL demo board (views featured in the Application Information section four layer board ...
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Typical Performance Characteristics MTE Specific Characteristics LM4838MTE THD+N vs Output Power LM4838MTE THD+N vs Output Power LM4838MTE Power Dissipation vs Output Power Note 19: These curves show the thermal dissipation ability of the LM4838MTE at different ambient temperatures given these ...
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Typical Performance Characteristics Non-MTE Specific Characteristics THD+N vs Frequency THD+N vs Frequency THD+N vs Frequency THD+N vs Frequency 20013357 THD+N vs Frequency 20013314 THD+N vs Frequency 20013316 9 20013358 20013315 20013317 www.national.com ...
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Typical Performance Characteristics Non-MTE Specific Characteristics THD+N vs Frequency THD+N vs Frequency THD+N vs Frequency www.national.com (Continued) THD+N vs Frequency 20013318 THD+N vs Frequency 20013320 THD+N vs Output Power 20013322 10 20013319 20013321 20013324 ...
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Typical Performance Characteristics Non-MTE Specific Characteristics THD+N vs Output Power THD+N vs Output Power THD+N vs Output Power (Continued) THD+N vs Output Power 20013325 THD+N vs Output Power 20013327 THD+N vs Output Power 20013329 11 20013326 20013328 20013330 www.national.com ...
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Typical Performance Characteristics Non-MTE Specific Characteristics THD+N vs Output Power THD+N vs Output Power THD+N vs Output Voltage Docking Station Pins www.national.com (Continued) THD+N vs Output Power 20013331 THD+N vs Output Power 20013333 THD+N vs Output Voltage Docking Station Pins ...
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Typical Performance Characteristics Output Power vs Load Resistance Output Power vs Load Resistance Power Supply Rejection Ratio 20013362 20013306 20013339 13 Dropout Voltage 20013353 Output Power vs Load Resistance 20013307 Output Power vs Load Resistance 20013308 www.national.com ...
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Typical Performance Characteristics Noise Floor Volume Control Characteristics Power Dissipation vs Output Power www.national.com (Continued) 20013341 Bass Boost Characteristics 20013340 Power Dissipation vs 20013351 14 Noise Floor 20013342 External Gain/ 20013361 Output Power 20013352 ...
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Typical Performance Characteristics Power Derating Curve Output Power vs Supply voltage Supply Current vs Supply Voltage Note 20: These curves show the thermal dissipation of the LM4838ITL at different ambient temperatures with a thermal plane of size shown on an ...
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... TSSOP and LQ packages are shown in the Demonstration Board Layout section. Further detailed and specific infor- mation concerning PCB layout, fabrication, and mounting an LQ (LLP) package is available in National Semiconductor’s AN1187. The micro SMD and GR packages (LM4838ITL and LM4838GR) thermals work in a similar way to the LQ and MTE packages in that a thermal plane increases the heat transfer from the die ...
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Application Information amplifier’s half-supply bias voltage across the load. This increases internal IC power dissipation and may perma- nently damage loads such as speakers. POWER DISSIPATION Power dissipation is a major concern when designing a successful single-ended or bridged amplifier. ...
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Application Information INPUT CAPACITOR VALUE SELECTION Amplifying the lowest audio frequencies requires a high value input coupling capacitor (0.33µF in Figure 2), but high value capacitors can be expensive and may compromise space efficiency in portable designs. In many cases, ...
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Application Information MICRO-POWER SHUTDOWN The voltage applied to the SHUTDOWN pin controls the LM4838’s shutdown function. Activate micro-power shut- down by applying V to the SHUTDOWN pin. When active, DD the LM4838’s micro-power shutdown feature turns off the amplifier’s bias ...
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Application Information GAIN SELECT FUNCTION (Bass Boost) The LM4838 features selectable gain, using either internal or external feedback resistors. Either set of feedback resistors set the gain of the output amplifiers. The voltage applied to the GAIN SELECT pin controls ...
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Application Information VOLUME CONTROL TABLE ( Table 2 ) Gain Voltage Range (% of Vdd) (dB) Low High Recommended 0 77.5% 100.00% 100.000% -1 75.0% 78.5% 76.875% -2 72.5% 76.25% 74.375% -3 70.0% 73.75% 71.875% -4 67.5% 71.25% 69.375% -5 ...
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Application Information AUDIO POWER AMPLIFIER DESIGN Audio Amplifier Design: Driving 1W into an 8Ω Load The following are the desired operational parameters: Power Output: Load Impedance: Input Level: Input Impedance: Bandwidth: 100 Hz−20 kHz The design begins by specifying the ...
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Recommended Printed Circuit Board Layout FIGURE 5. Recommended LQ PC Board Layout: FIGURE 6. Recommended LQ PC Board Layout: (Continued) Component-Side Silkscreen Component-Side Layout 23 20013377 20013378 www.national.com ...
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Recommended Printed Circuit Board Layout www.national.com FIGURE 7. Recommended LQ PC Board Layout: Upper Inner-Layer Layout FIGURE 8. Recommended LQ PC Board Layout: Lower Inner-Layer Layout 24 (Continued) 20013379 20013380 ...
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Recommended Printed Circuit Board Layout FIGURE 9. Recommended LQ PC Board Layout: (Continued) Bottom-Side Layout 25 20013381 www.national.com ...
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Item Part Number Part Description 1 551011368-001 LM4838 Eval Board PCB etch 001 10 482911368-001 LM4838 28L LLP 20 151911368-001 Cer Cap 0.068µF 50V 10% 1206 25 152911368-001 Tant Cap 0.1µF 10V 10% Size = A 3216 26 152911368-002 Tant ...
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LM4838 MT & MTE Demo Board Artwork Top Layer SilkScreen Top Layer TSSOP 27 20013382 20013383 www.national.com ...
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LM4838 MT & MTE Demo Board Artwork www.national.com (Continued) Inner Layer (2) LM4838MT/MTE Inner Layer (3) LM4838MT/MTE 28 20013385 20013386 ...
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LM4838 MT & MTE Demo Board Artwork Item Part Number 1 551011373-001 10 482911373-001 20 151911368-001 25 152911368-001 26 152911368-002 27 152911368-003 28 152911368-004 29 152911368-005 30 472911368-001 31 472911368-002 32 472911368-003 33 472911368-004 (Continued) Bottom Layer TSSOP Analog Audio ...
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Item Part Number 40 131911368-001 41 131911368-002 42 131911368-003 43 131911368-004 44 131911368-005 45 131911368-006 www.national.com Analog Audio LM4838 TSSOP Eval Board Assembly Part Number: 980011373-100 Revision: A Bill of Material (Continued) Part Description Qty Stereo Headphone Jack 1 W/ ...
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LM4838 ITL Demo Board Artwork FIGURE 10. LM4838 micro SMD Silk Screen FIGURE 11. LM4838 micro SMD Top Layer 31 20013392 20013389 www.national.com ...
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LM4838 ITL Demo Board Artwork www.national.com (Continued) FIGURE 12. LM4838 micro SMD Upper Inner Layer FIGURE 13. LM4838 micro SMD Lower Inner Layer 32 20013390 20013391 ...
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LM4838 ITL Demo Board Artwork (Continued) FIGURE 14. LM4838 micro SMD Bottom Layer 33 20013393 www.national.com ...
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Part Description µΩ LM4838 TLA36 Evaluation Board PCB LM4838ITL Ceramic Capacitor 0.068µF 50V 10% Size = 1206 Tantalum Capacitor 0.1µF 10V 10% Size = 1206 Tantalum Capacitor 0.33µF 10V 10% Size = 1206 Tantalum Capacitor 1.0µF 16V 10% Size = ...
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Physical Dimensions inches (millimeters) unless otherwise noted NS Package Number LQA028AA For Exposed-DAP LLP LLP Package Order Number LM4838LQ 35 www.national.com ...
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Physical Dimensions NS Package Number MXA28A for Exposed-DAP TSSOP www.national.com inches (millimeters) unless otherwise noted (Continued) TSSOP Package Order Number LM4838MT NS Package Number MTC28 for TSSOP Exposed-DAP TSSOP Package Order Number LM4838MTE 36 ...
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Physical Dimensions inches (millimeters) unless otherwise noted (Continued 3.000 1 36-Bump micro SMD Order Number LM4838ITL, LM4838ITLX NS Package Number TLA36AAA ± ± 0. 3.000 0. 0.600 ± 0.075 www.national.com ...
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... BANNED SUBSTANCE COMPLIANCE National Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. ...