lm4888sqx National Semiconductor Corporation, lm4888sqx Datasheet
lm4888sqx
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lm4888sqx Summary of contents
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... Note 2: An LM4888SQ that has been properly mounted to a circuit board and forced-air cooled will deliver 2.4W into 3Ω. Connection Diagrams LM4888SQ Top View Order Number LM4888SQ See NS Package Number SQA24A Boomer ® registered trademark of National Semiconductor Corporation. © 2006 National Semiconductor Corporation Key Specifications THD+ 3Ω ...
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Typical Application FIGURE 1. Typical Audio Amplifier Application Circuit www.national.com 2 20111629 ...
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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 4) ESD Susceptibility (Note 5) ESD Susceptibility (Note 6) Junction ...
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Electrical Characteristics for Bridged-Mode Operation (5V) 13) (Continued) The following specifications apply for V Symbol Parameter PSRR Power Supply Rejection Ratio X Channel Separation TALK V Output Noise Voltage NO Electrical Characteristics for Single-Ended Operation (5V) The following specifications apply ...
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Electrical Characteristics (3V) The following specifications apply for V Symbol Parameter I Quiescent Power Supply Current DD I Shutdown Current SD V Headphone High Input Voltage IH V Headphone Low Input Voltage IL V Shutdown, Headphone micro, IHSD 3D Control ...
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Electrical Characteristics for Single-Ended Operation (3V) The following specifications apply for V Symbol Parameter P Output Power O THD+N Total Harmonic Distortion+Noise PSRR Power Supply Rejection Ratio X Channel Separation TALK V Output Noise Voltage NO Note 3: Absolute Maximum ...
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Typical Performance Characteristics THD+N vs Output Power 5V, 8Ω, BTL at 1kHz THD+N vs Output Power 5V, 3Ω, BTL at 1kHz THD+N vs Output Power 5V, 32Ω 1kHz THD+N vs Output Power 201116B6 THD+N vs Output Power 5V, ...
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Typical Performance Characteristics THD+N vs Output Power 3V, 4Ω, BTL at 1kHz THD+N vs Output Power 3V, 32Ω, BTL at 1kHz THD+N vs Frequency 5V, 8Ω, BTL at 400mW www.national.com (Continued) THD+N vs Output Power 3V, 3Ω, BTL at 1kHz ...
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Typical Performance Characteristics THD+N vs Frequency 5V, 32Ω 75mW THD+N vs Frequency 3V, 4Ω, BTL at 250mW PSRR 5V, 8Ω, BTL, Input Unterminated (Continued) THD+N vs Frequency 3V, 8Ω, BTL at 150mW 20111677 THD+N vs Frequency 3V, 32Ω, ...
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Typical Performance Characteristics PSRR 5V, 32Ω, SE, Input Unterminated PSRR 3V, 8Ω, BTL, Input Unterminated PSRR 3V, 32Ω, SE, Input Unterminated www.national.com (Continued) 5V, 32Ω, SE, Input Terminated 20111669 3V, 8Ω, BTL, Input Terminated 20111663 3V, 32Ω, SE, Input Terminated ...
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Typical Performance Characteristics Frequency Response 5V, 8Ω, BTL Frequency Response 5V, 32Ω, SE Crosstalk 5V, 8Ω, BTL (Continued) Frequency Response 20111659 Frequency Response 20111662 20111613 11 3V, 8Ω, BTL 20111661 3V, 32Ω, SE 20111660 Crosstalk 3V, 8Ω, BTL 20111611 www.national.com ...
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Typical Performance Characteristics Crosstalk 3V, 32Ω, SE Dropout Voltage vs Supply Voltage Open Loop Frequency Response www.national.com (Continued) 20111612 201116C0 Power Dissipation vs 201116C1 12 Crosstalk 5V, 32Ω, SE 20111610 Output Power vs Supply Voltage 201116C2 Output Power 201116C4 ...
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Typical Performance Characteristics Power Dissipation vs Output Power Power Derating Curve (Continued) Power Dissipation vs Output Power Single Channel 1kHz, THD+N ≤ 1.0%, BW 201116C5 201116C8 13 < 80kHz 201116C7 www.national.com ...
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Application Information EXPOSED-DAP PACKAGE PCB MOUNTING CONSIDERATIONS The LM4888’s SQ exposed-DAP (die attach paddle) pack- age provides a low thermal resistance between the die and the PCB to which the part is mounted and soldered. This allows rapid heat transfer ...
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Application Information The LM4888’s power dissipation is twice that given by Equa- tion (2) or Equation (3) when operating in the single-ended mode or bridge mode, respectively. Twice the maximum power dissipation point given by Equation (3) must not ex- ...
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Application Information SHUTDOWN PIN Logic High Logic High Logic High Logic Low HEADPHONE SENSE AND HEADPHONE LOGIC IN FUNCTIONS Applying a logic level to the LM4888’s HP Sense headphone control pin turns off Amp A (+out) and Amp B (+out) ...
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Application Information 150 Hz. Applications using speakers with this limited fre- quency response reap little improvement by using large input capacitor. Besides effecting system cost and size, C1 and C2 have an effect on the LM4888’s click and pop performance. ...
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Application Information The value 30kΩ. f The last step in this design example is setting the amplifier’s −3dB frequency bandwidth. To achieve the desired pass band magnitude variation limit, the low frequency re- sponse must extend to ...
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Demonstration Board Layout FIGURE 3. Silkscreen FIGURE 4. Top Layer 19 20111609 20111607 www.national.com ...
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Demonstration Board Layout www.national.com (Continued) FIGURE 5. Mid layer FIGURE 6. Bottom Layer 20 20111606 20111608 ...
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Bill of Materials Analog Audio LM4888SQ Eval Board Assembly Part Number: 551012279–001 Revision: A Item Part Number 1 551012279–001 LM4888 Eval Board PCB etch 001 2 3 Tant Cap 0.22µF 50V 10% 4 Tant Cap 1µF 16V 10% Size = ...
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Revision History Rev 1.0 1.1 www.national.com Date 6/09/05 Changed the doc title from LM4888SQ into LM4888, then re-released D/S to the WEB (per Steve K. (MC) 3/06/06 Edited graphics 201116 01.. Typ Appl Ckt Dg (new # 201116 29) and ...
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Physical Dimensions inches (millimeters) unless otherwise noted National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and ...