LM4674TLX National Semiconductor, LM4674TLX Datasheet
LM4674TLX
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LM4674TLX Summary of contents
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... Superior click and pop sup- pression eliminates audible transients on power-up/down and during shutdown. Independent left/right shutdown control maximizes power savings in mixed mono/stereo applications. Boomer® registered trademark of National Semiconductor Corporation. © 2008 National Semiconductor Corporation Key Specifications ■ ...
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Typical Application = 1 μ μ 0.1 μ External Components Description (Figure 1) Components 1. C Supply bypass capacitor which provides power supply filtering. Refer to the Power Supply Bypassing section ...
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Connection Diagrams TL Package (2mm x 2mm x 0.6mm) Top View Order Number LM4674TL See NS Package Number TL1611A LLP Package (4mm x 4mm x 0.8mm) Top View Order Number LM4674SQ See NS Package Number SQA16A LM4674TL Markings XY = ...
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BUMP www.national.com PIN NAME 4 INL OUTLA 8 OUTLB 3 INL SDR 9 SDL 2 INR- 16 ...
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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 (Note 1) Storage Temperature Input Voltage Power Dissipation (Note 3) ESD Susceptibility, all other pins (Note 4) ESD Susceptibility (Note 5) Electrical Characteristics V The following specifications apply for A = 25° ...
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Symbol Parameter P Output Power O THD+N Total Harmonic Distortion PSRR Power Supply Rejection Ratio CMRR Common Mode Rejection Ratio η Efficiency Xtalk Crosstalk SNR Signal to Noise Ratio ε Output Noise OS Note 1: All voltages are measured with ...
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Block Diagrams FIGURE 2. Differential Input Configuration 7 20167426 www.national.com ...
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FIGURE 3. Single-Ended Input Configuration 8 20167464 ...
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Typical Performance Characteristics THD+N vs Output Power f = 1kHz 24dB THD+N vs Output Power f= 1kHz 24dB THD+N vs Frequency V = 2.5V 100mW/ch OUT = 8Ω ...
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THD+N vs Frequency 375mW/ch OUT THD+N vs Frequency V = 3.6V 250mW/ch OUT Efficiency vs Output Power/channel = 4Ω 1kHz R L www.national.com = 8Ω ...
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Power Dissipation vs Output Power = 4Ω 1kHz R L Output Power/channel vs Supply Voltage = 4Ω 1kHz R L PSRR vs Frequency = 8Ω 3.6V 200mV , R DD RIPPLE P-P ...
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CMRR vs Frequency V = 3.6V www.national.com = 8Ω P-P L 20167457 12 Supply Current vs Supply Voltage ∞ 20167458 ...
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Application Information GENERAL AMPLIFIER FUNCTION The LM4674 stereo Class D audio power amplifier features a filterless modulation scheme that reduces external compo- nent count, conserving board space and reducing system cost. The outputs of the device transition from V with ...
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PCB LAYOUT GUIDELINES As output power increases, interconnect resistance (PCB traces and wires) between the amplifier, load and power sup- ply create a voltage drop. The voltage loss due to the traces between the LM4674 and the load results in ...
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LM4674TL Demo Board Schematic LM4674TL Demo Board Schematic 15 20167474 www.national.com ...
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LM4674TL Demonstration Board Layout www.national.com Layer 1 Layer 2 Layer 3 16 20167476 20167477 20167478 ...
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Layer 4 Top Silkscreen Bottom Silkscreen 17 20167479 20167480 20167475 www.national.com ...
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LM4674SQ Demo Board Schematic www.national.com LM4674SQ Demo Board Schematic 18 20167481 ...
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LM4674SQ Demonstration Board Layout 20167485 Layer 1 20167483 Layer 2 20167484 Layer 3 19 www.national.com ...
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Top Silkscreen Bottom Layer 20 20167487 ...
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Revision Table Rev Date 1.0 12/16/06 1.1 05/17/06 1.2 05/31/06 1.3 09/05/06 1.4 09/21/06 1.5 09/27/06 1.6 07/13/07 1.7 10/30/07 1.8 07/02/08 Description Initial release. Added the LLP package. Added the LLP markings. Added “No Load” in the Conditions on ...
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Physical Dimensions www.national.com inches (millimeters) unless otherwise noted 16 Bump micro SMD Order Number LM4674TL NS Package Number TLA1611A X1 = 2mm X2 = 2mm X3 = 0.6mm LLP Package Order Number LM4674SQ NS Package Number SQA16A 22 ...
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Notes 23 www.national.com ...
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... For more National Semiconductor product information and proven design tools, visit the following Web sites at: Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock Conditioners www.national.com/timing Data Converters www.national.com/adc Displays www.national.com/displays Ethernet www.national.com/ethernet Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www ...