LM4839LQ NSC [National Semiconductor], LM4839LQ Datasheet
LM4839LQ
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LM4839LQ Summary of contents
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... Note 1: When properly mounted to the circuit board, the LM4839LQ and LM4839MTE will deliver 2W into 4 . The LM4839MT will deliver 1.1W into 8 . See the Application Information section for LM4839LQ and LM4839MTE usage information ...
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Connection Diagrams See NS Package Number MXA28A for Exposed-DAP TSSOP www.national.com (Continued) TSSOP Package Top View Order Number LM4839MT See NS Package Number MTC28 for TSSOP Order Number LM4839MTE 2 DS200134-2 ...
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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 ESD Susceptibility (Note 12) ESD Susceptibility (Note 13) Junction Temperature Soldering ...
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Electrical Characteristics for Single-Ended Mode Operation (Notes 7, 10) The following specifications apply for V Symbol Parameter P Output Power O THD+N Total Harmonic Distortion+Noise PSRR Power Supply Rejection Ratio SNR Signal to Noise Ratio X Channel Separation talk Electrical ...
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Electrical Characteristics for Bridged Mode Operation Note 15: Datasheet min/max specification limits are guaranteed by design, test, or statistical analysis. Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level). (Continued) 5 www.national.com ...
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Typical Application www.national.com 6 ...
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Truth Table for Logic Inputs Mute Mux Control HP Sense Note 16: If system beep is detected on the Beep in pin (pin 11) and beep is fed to inputs, ...
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Non-MTE Specific Characteristics THD+N vs Frequency DS200134-57 THD+N vs Frequency DS200134-15 THD+N vs Frequency DS200134-18 THD+N vs Frequency DS200134-21 www.national.com THD+N vs Frequency DS200134-58 THD+N vs Frequency DS200134-16 THD+N vs Frequency DS200134-19 THD+N vs Frequency DS200134-22 8 THD+N vs Frequency ...
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Non-MTE Specific Characteristics THD+N vs Output Power DS200134-25 THD+N vs Output Power DS200134-28 THD+N vs Output Power DS200134-31 THD+N vs Output Power DS200134-34 (Continued) THD+N vs Output Power DS200134-26 THD+N vs Output Power DS200134-29 THD+N vs Output Power DS200134-32 THD+N ...
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Non-MTE Specific Characteristics Output Power vs Load Resistance DS200134-62 Power Supply Rejection Ratio DS200134-35 Noise Floor DS200134-41 www.national.com (Continued) Output Power vs Load Resistance DS200134-6 Dropout Voltage DS200134-53 Noise Floor DS200134-42 10 Output Power vs Load Resistance DS200134-7 Output Power ...
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Non-MTE Specific Characteristics Power Dissipation vs Output Power DS200134-51 Power Derating Curve DS200134-63 Output Power vs Supply voltage DS200134-54 (Continued) Power Dissipation vs Output Power DS200134-52 Crosstalk DS200134-49 Output Power vs Supply Voltage DS200134-56 11 External Gain/Bass Boost Characteristics DS200134-61 ...
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Typical Performance Characteristics Output Power vs Load Resistance DS200134-62 Power Supply Rejection Ratio DS200134-35 Noise Floor DS200134-41 www.national.com Output Power vs Load Resistance DS200134-6 Dropout Voltage DS200134-53 Noise Floor DS200134-42 12 Output Power vs Load Resistance DS200134-7 Output Power vs ...
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Typical Performance Characteristics Power Dissipation vs Output Power DS200134-51 Power Derating Curve DS200134-63 Output Power vs Supply voltage DS200134-54 (Continued) Power Dissipation vs Output Power DS200134-52 Crosstalk DS200134-49 Output Power vs Supply Voltage DS200134-56 13 External Gain/ Bass Boost Characteristics ...
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... LM4839MTE can continuously drive a 3 power. The LM4839LQ achieves the same output power level without forced air cooling. In all circumstances and conditions, the junction temperature must be held below 150˚C to prevent activating the LM4839’s thermal shutdown protection. The LM4839’ ...
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Application Information The LM4839 has two operational amplifiers per channel. The maximum internal power dissipation per channel operating in the bridge mode is four times that of a single-ended ampli- fier. From Equation (3), assuming a 5V power supply and ...
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Application Information Higher value capacitors need more time to reach a quiescent DC voltage (usually V /2) when charged with a fixed cur- DD rent. The amplifier’s output charges the input capacitor through the feedback resistor Thus, pops ...
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Application Information microprocessor microcontroller. When using a switch, connect an external 10k pull-up resistor between the SHUTDOWN pin and V . Connect the switch between the DD SHUTDOWN pin and ground. Select normal amplifier opera- tion by closing ...
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Application Information When the bass boost is enabled, the output amplifiers will be internally set at a gain low frequencies (gain bridged mode). As shown in Figure 1, CBS sets the cutoff frequency for ...
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Volume Control Table ( Table 2 ) Gain (dB) Voltage Range (% of Vdd) Low High Recommended 0 77.5% 100.00% -1 75.0% 78.5% -2 72.5% 76.25% -3 70.0% 73.75% -4 67.5% 71.25% -5 65.0% 68.75% -6 62.5% 66.25% -8 60.0% ...
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AUDIO POWER AMPLIFIER DESIGN Audio Amplifier Design: Driving 1W into an 8 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 minimum supply voltage ...
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RECOMMENDED PRINTED CIRCUIT BOARD LAYOUT Figure 4. Recommended LQ PC Board Layout: Component-Side Silkscreen 21 (Continued) DS200134-78 www.national.com ...
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RECOMMENDED PRINTED CIRCUIT BOARD LAYOUT www.national.com Figure 5. Recommended LQ PC Board Layout: Component-Side Layout 22 (Continued) DS200134-79 ...
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RECOMMENDED PRINTED CIRCUIT BOARD LAYOUT Figure 6. Recommended LQ PC Board Layout: Upper Inner-Layer Layout 23 (Continued) DS200134-80 www.national.com ...
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RECOMMENDED PRINTED CIRCUIT BOARD LAYOUT www.national.com Figure 7. Recommended LQ PC Board Layout: Lower Inner-Layer Layout 24 (Continued) DS200134-81 ...
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RECOMMENDED PRINTED CIRCUIT BOARD LAYOUT Figure 8. Recommended LQ PC Board Layout: Bottom-Side Layout 25 (Continued) DS200134-82 www.national.com ...
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RECOMMENDED PRINTED CIRCUIT BOARD LAYOUT Analog Audio LM4839 LLP28 Eval Board (LQ Package) Assembly Part Number: 980011368-100 Revision: A1 Bill of Material Item Part Number Part Description 1 551011368-001 LM4838 Eval Board PCB 10 482911368-001 LM4838 28L LLP 20 151911368-001 ...
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Recommended Printed Circuit Board Layout - MT/MTE Packages Top Layer SilkScreen + Pad - ( Not to Scale ) Top Layer - Not to scale - ( Not to Scale ) 27 DS200134-84 DS200134-85 www.national.com ...
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Layer 2 - Not to scale - ( Not to Scale ) Layer Not to scale ) 28 DS200134-86 DS200134-87 ...
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Bottom Layer - ( Not to scale ) 29 DS200134-88 www.national.com ...
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Analog Audio LM4839 MSOP Eval Board Assembly Part Number: 980011373-100 Revision: A Bill of Material Item Part Number Part Description 1 551011373-001 LM4839 Eval Board PCB 10 482911373-001 20 151911368-001 Cer Cap 0.068µF 50V 10% 25 152911368-001 Tant Cap ...
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... Physical Dimensions inches (millimeters) unless otherwise noted NS Package Number LQA028AA For Exposed-DAP LLP LLP Package Order Number LM4839LQ 31 www.national.com ...
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Physical Dimensions www.national.com inches (millimeters) unless otherwise noted (Continued) TSSOP Package Order Number LM4839MT NS Package Number MTC28 for TSSOP 32 ...
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Physical Dimensions inches (millimeters) unless otherwise noted (Continued) NS Package Number MXA28A for Exposed-DAP TSSOP Exposed-DAP TSSOP Package Order Number LM4839MTE 33 www.national.com ...
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LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support ...