LM4946SQ National Semiconductor, LM4946SQ Datasheet
LM4946SQ
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LM4946SQ Summary of contents
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... It delivers high quality output power from a surface-mount package and requires only sev- en external components in the OCL mode (two additional components in SE mode). Boomer® registered trademark of National Semiconductor Corporation. © 2007 National Semiconductor Corporation Key Specifications ■ ...
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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 201628g1 201628n4 ...
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Connection Diagrams 24 Lead LLP Package Top View 25 Bump micro SMD Package Top View 20162803 U - Wafer Fab Code Z - Assembly Plant Code TT - Die Traceability U - Wafer Fab Code Z - Assembly Plant Code ...
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Pin Descriptions Pin Number (LLP) Bump (Mirco SMD ...
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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 (Note 1) Vapor Phase (60 sec.) Electrical Characteristics 3 ...
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Symbol Parameter N Output Noise OUT Power Supply Rejection Ratio MONO OUT PSRR Power Supply Rejection Ratio R and L OUT OUT Volume Control Step Size Error Digital Volume Control Range HP(SE) Mute Attenuation MONO_IN Input Impedance R and L ...
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Electrical Characteristics 5.0V The following specifications apply for V Symbol Parameter I Supply Current DD I Shutdown Current SD V Output Offset Voltage OS P Output Power O THD+N Total Harmonic Distortion + Noise N Output Noise OUT Power Supply ...
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Symbol Parameter Power Supply Rejection Ratio PSRR R and L OUT OUT Digital Volume Control Range HP(SE) Mute Attenuation MONO_IN Input Impedance R and L Input Impedance IN IN CMRR Common-Mode Rejection Ratio XTALK Crosstalk TWU Wake-Up Time from Shutdown ...
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I 2 C/SPI LLP/micro SMD The following specifications apply for V Symbol Parameter Clock Period Data Setup Time Data Stable Time 3 t Start Condition Time ...
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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 LM4946SQ 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 Frequency = 8Ω 3.3V Mode 1, BTL 80kHz THD+N vs Frequency = 32Ω 3.3V Mode 6, OCL 80kHz ...
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THD+N vs Frequency = 8Ω 5V Mode 1, BTL 80kHz THD+N vs Frequency = 32Ω 5V Mode 80kHz THD+N vs Frequency ...
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THD+N vs Frequency = 32Ω 3.3V 12mW Mode 2, OCL 201628m3 THD+N vs Frequency = 8Ω 3.3V 250mW Mode 3, BTL 201628m5 THD+N vs ...
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THD+N vs Output Power = 32Ω 1kHz V = 3.3V Mode THD+N vs Output Power = 8Ω 1kHz Mode 1, BTL THD+N vs Output ...
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THD+N vs Output Power = 32Ω 1kHz Mode 6, SE 201628c1 THD+N vs Output Power = 32Ω 1kHz V = 3.3V Mode 6, Stereo Input, OCL 201628m2 ...
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PSRR vs Frequency V = 3.3V, 0dB DD Mode 4, 7, OCL PSRR vs Frequency V = 3.3V, 0dB DD Mode 6, OCL PSRR vs Frequency V = 3.3V, 6dB DD Mode 1, BTL www.national.com PSRR vs Frequency 20162819 PSRR ...
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PSRR vs Frequency = 32Ω 3.3V Mode 2, OCL 201628l6 PSRR vs Frequency V = 3.3V, 6dB DD Mode 5, BTL 20162825 PSRR vs Supply Voltage = 32Ω, 217Hz R L Mode 4, OCL 201628l9 ...
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Power Dissipation vs Output Power V = 3.3V 1kHz, Mode Power Dissipation vs Output Power 1kHz, Mode OCL Power Dissipation ...
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Power Dissipation vs Output Power = 32Ω 1kHz 3.3V Mode 7, SE 201628k9 Crosstalk vs Frequency = 32Ω 5V 30mW Left-Right, Mode 4, OCL 201628f1 ...
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Supply Current vs Supply Voltage V = 3.3V, No Load, Modes Output Power vs Supply Voltage = 8Ω 1kHz, Mono, Mode www.national.com Supply Current vs Supply Voltage No Load, Modes 2, ...
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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 CSPI_SEL: This is tied LOW for I 2 ...
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SPI DESCRIPTION ≤ ≤ (For 2. CSPI_V 5.5V, see page 9 for more infor- DD mation CSPI_SEL: This pin is tied HIGH for SPI mode. 1. The data bits are transmitted with the MSB first. ...
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A7 A6 Chip 1 1 Address ID_ENB = ID_ENB = — Externally Controlled D7 D6 Mode Control 0 0 Programmable Mono Volume Control 1 0 Left Volume Control 1 1 ...
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Volume Step xVC4 ...
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NATIONAL 3D ENHANCEMENT The LM4946 features a stereo headphone, 3D audio en- hancement effect that widens the perceived soundstage from a stereo audio signal. The 3D audio enhancement creates a perceived spatial effect optimized for stereo headphone lis- tening. The ...
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PCB LAYOUT AND SUPPLY REGULATION CONSIDERATIONS FOR DRIVING 8Ω LOAD Power dissipated by a load is a function of the voltage swing across the load and the load's impedance. As load impedance decreases, load dissipation becomes increasingly dependent on the ...
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Ex- ternal, solder attached SMT heatsinks such as the Thermalloy 7106D can also improve power dissipation. When adding a heat sink, the θ is the sum of θ , θ JA ...
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Demo Board Schematic Diagram www.national.com 28 ...
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29 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 01/23/06 03/05/07 Added the TMD25XXX package. 03/13/07 Edited the 25–pin micro SMD connection diagram. 04/24/07 Added the I2C/SPI (1.7V 2.2V ) table. 04/26/07 Added the ...
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... Physical Dimensions inches (millimeters) unless otherwise noted 24 Lead LLP Package Order Number LM4946SQ NS Package Number SQA24A Dimensions are in millimeters ± 0 ± 0 0.8 ± 0 Bump micro SMD Package Order Number LM4946TM NS Package Number TMD25ABA = 2015μ 2047μm, = 600μ www.national.com ...
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... National Semiconductor and the National Semiconductor logo are registered trademarks of National Semiconductor Corporation. All other brand or product names may be trademarks or registered trademarks of their respective holders. ...