LM4947TL National Semiconductor, LM4947TL Datasheet
LM4947TL
Specifications of LM4947TL
Related parts for LM4947TL
LM4947TL Summary of contents
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... BTL (3.3V) ■ THD+N at 1kHz, 37mW into 32Ω SE (3.3V) ■ Single Supply Operation ( ■ Single Supply Operation Boomer® registered trademark of National Semiconductor Corporation. © 2007 National Semiconductor Corporation Features ■ Control Interface ■ programmable National 3D Audio ■ ...
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Typical Application FIGURE 1. Typical Audio Amplifier Application Circuit-Output Capacitor-less FIGURE 2. Typical Audio Amplifier Application Circuit-Single Ended www.national.com 2 201735d3 201735d4 ...
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Connection Diagrams 25-Bump micro SMD Top View micro SMD Marking 20173507 Top View XY - Date Code TT - Die Traceability G - Boomer Family 201735d2 www.national.com ...
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Pin Descriptions Bump Name Description A1 R Right Input Channel 2 or Right Differential Input - IN2 A2 L Left Input Channel 1 or Left Differential Input + IN1 A3 MIN+ Mono Channel Non-inverting Input A4 RHP Right Headphone 3D ...
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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 ESD Susceptibility (Note 3) ESD Machine model (Note 6) Junction Temperature ( Solder Information Electrical Characteristics 3.3V The following specifications apply for V ...
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Symbol Parameter Power Supply Rejection Ratio Loudspeaker out PSRR Power Supply Rejection Ratio R and L OUT OUT η Class D Efficiency CMRR Common-Mode-Rejection Ratio XTALK Crosstalk T Wake-Up Time from Shutdown WU Volume Control Step Size Error Digital Volume ...
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Electrical Characteristics 5V The following specifications apply for V Symbol Parameter I Quiescent Supply Current DDQ I Shutdown Current SD V Output Offset Voltage OS P Output Power O THD+N Total Harmonic Distortion + Noise N Output Noise OUT (Notes ...
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Symbol Parameter Power Supply Rejection Ratio Loudspeaker out PSRR Power Supply Rejection Ratio R and L OUT OUT η Class D Efficiency CMRR Common-Mode Rejection Ratio XTALK Crosstalk T Wake-Up Time from Shutdown WU Volume Control Step Size Error Digital ...
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(Notes 2, 7) The following specifications apply for V Symbol Parameter t Clock Period 1 t Clock Setup Time 2 t Data Hold Time 3 t Start Condition Time 4 t Stop Condition Time 5 V SPI ...
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... IC with no external series resistor (resistance of discharge path must be under 50Ω). Note 7: All voltages are measured with respect to the ground pin, unless otherwise specified. Note 8: The given θ for an LM4947TL mounted on a demonstration board with a 9in JA Note 9: Datasheet min/max specifications are guaranteed by design, test, or statistical analysis. ...
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Typical Performance Characteristics THD+N vs Output Power = 8Ω 1kHz V = 3.3V Mode 1, MONO THD+N vs Output Power = 8Ω 1kHz V = 3.3V Mode 5, MONO THD+N ...
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THD+N vs Output Power = 32Ω 1kHz, Diff 3.3V Mode 4, SE THD+N vs Output Power = 32Ω 1kHz, Diff 3.3V Mode 6, SE ...
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THD+N vs Output Power = 32Ω 1kHz, Diff 5V Mode 2, OCL 20173555 THD+N vs Output Power = 32Ω 1kHz, Diff 5V Mode 4, ...
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THD+N vs Frequency = 8Ω 3.3V Diff In, Mode 1 THD+N vs Frequency = 8Ω 3.3V Diff In, Mode 3 THD+N vs Frequency = 32Ω ...
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THD+N vs Frequency = 32Ω 3.3V 12mW Mode 4,7, SE 20173531 THD+N vs Frequency = 32Ω 3.3V 12mW Mode 6, SE 20173533 THD+N vs ...
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THD+N vs Frequency = 32Ω 5V Diff In, Mode 2, OCL THD+N vs Frequency = 32Ω 5V Diff In, Mode 4,7, OCL THD+N vs Frequency = 32Ω, P ...
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PSRR vs Frequency V = 3.3V 0dB DD V Mode 1, MONO 20173516 PSRR vs Frequency V = 3.3V 0dB DD V Mode 2, SE 20173518 PSRR vs Frequency V = 3.3V 0dB DD ...
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PSRR vs Frequency V = 3.3V Mode 5, MONO PSRR vs Frequency V = 3.3V Mode 6, SE PSRR vs Frequency Mode 1, MONO www.national.com = 0dB 20173522 ...
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PSRR vs Frequency 0dB DD V Mode 2, SE 201735a8 PSRR vs Frequency 0dB DD V Mode 4, OCL 201735b0 PSRR vs Frequency 0dB DD ...
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PSRR vs Frequency Mode 6, SE Power Dissipation vs Output Power = 32Ω 1kHz V = 3.3V Mode 7, OCL Power Dissipation vs Output Power = 8Ω ...
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Power Dissipation vs Output Power = 32Ω 1kHz V = 3.3V Mode 20173598 Power Dissipation vs Output Power = 32Ω 1kHz Mode 7, ...
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Crosstalk vs Frequency = 32Ω 3.3V Mode 4, OCL Crosstalk vs Frequency = 32Ω 5V Mode 4, OCL Supply Current vs Supply Voltage No Load, Mode 7, OCL ...
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Supply Current vs Supply Voltage No Load, Mode MONO 201735d1 Supply Current vs Supply Voltage No Load, Mode Headphone SE 20173581 Output Power vs Supply Voltage = 32Ω, Mode OCL R ...
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Output Power vs Supply Voltage = 32Ω, Mode 7, OCL R L Efficiency vs Output Power = 8Ω, Mode BTL V = 3.3V www.national.com Output Power vs Supply Voltage R L 20173590 Efficiency vs ...
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Application Information PIN DESCRIPTION SDA: This is the serial data input pin. SCL: This is the clock input pin. ID_ENB: This is the address select input pin COMPATIBLE INTERFACE The LM4947 uses a serial ...
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Low Medium High Maximum Select L and R Stereo Pair IN1 IN1 Select L and R Stereo Pair IN2 IN2 Select L +L and R +R Stereo Pair IN1 IN2 IN1 IN2 Sets Stereo Inputs to Differential X = Don't ...
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Volume Step xVC4 ...
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Output MC2 MC1 MC0 Mode Number Note: L and R are selected by modes from Table ...
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AC gain where M represents some ratio of the nominal internal resistor, 20kΩ (see exam- ple below). (3D 2π M)(20kΩ 3dB C (nF) ...
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Further allowance should be made for increased ambient temperatures. The above examples assume that a device is a surface mount part operating around the maximum power dissipation point. Since internal power dissipation is a ...
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DEMO BOARD SCHEMATIC 31 www.national.com ...
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Revision History Rev 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 www.national.com Date 06/16/06 Initial release. 06/19/06 Changed the Class D Efficiency (n) on Typical limit (from 79 to 86) on the 5V specification table. 06/22/06 Added more ...
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... Physical Dimensions inches (millimeters) unless otherwise noted X = 2.517 ± 0. – Bump micro SMD Order Number LM4947TL NS Package Number TLA25BBA Dimensions are in millimeters = 2.517 ± 0. 0.600 ± 0. www.national.com ...
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