lm4883sqx National Semiconductor Corporation, lm4883sqx Datasheet
lm4883sqx
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lm4883sqx Summary of contents
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... Note 2: An LM4883SQ that has been properly mounted to a circuit board and forced-air cooled will deliver 2.4W into 3Ω. Connection Diagrams LM4883SQ Top View Order Number LM4883SQ See NS Package Number SQA24B Boomer ® registered trademark of National Semiconductor Corporation. © 2004 National Semiconductor Corporation Key Specifications THD 3Ω ...
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Typical Application FIGURE 1. Typical Audio Amplifier Application Circuit External Components Description (Refer to Figure 1) Components 1. R1 The inverting input resistance R1, along with R form a high pass filter with f 2. C1, 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 (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 High Input Voltage IHSD V ...
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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, 8Ω 1kHz THD+N vs Output Power 200887B6 THD+N vs Output Power 5V, ...
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Typical Performance Characteristics THD+N vs Output Power 3V, 8Ω, BTL at 1kHz THD+N vs Output Power 3V, 3Ω, BTL at 1kHz THD+N vs Output Power 3V, 8Ω 1kHz www.national.com (Continued) THD+N vs Output Power 3V, 4Ω, BTL at ...
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Typical Performance Characteristics THD+N vs Frequency 5V, 8Ω, BTL at 400mW THD+N vs Frequency 5V, 32Ω 75mW THD+N vs Frequency 3V, 4Ω, BTL at 250mW (Continued) THD+N vs Frequency 20088776 THD+N vs Frequency 3V, 8Ω, BTL at 150mW ...
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Typical Performance Characteristics PSRR 5V, 8Ω, BTL, Input Unterminated PSRR 5V, 32Ω, SE, Input Unterminated PSRR 3V, 8Ω, BTL, Input Unterminated www.national.com (Continued) 5V, 8Ω, BTL, Input Terminated 20088767 5V, 32Ω, SE, Input Terminated 20088769 3V, 8Ω, BTL, Input Terminated ...
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Typical Performance Characteristics PSRR 3V, 32Ω, SE, Input Unterminated Frequency Response 5V, 8Ω, BTL Frequency Response 5V, 32Ω, SE (Continued) 3V, 32Ω, SE, Input Terminated 20088765 Frequency Response 20088759 Frequency Response 20088762 11 PSRR 20088766 3V, 8Ω, BTL 20088761 3V, ...
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Typical Performance Characteristics Crosstalk 5V, 8Ω, BTL Crosstalk 3V, 32Ω, SE Output Power vs Supply Voltage www.national.com (Continued) 20088749 Dropout Voltage vs 20088737 Frequency Response 200887C2 12 Crosstalk 3V, 8Ω, BTL 20088735 Supply Voltage 200887C0 Open Loop 200887C1 ...
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Typical Performance Characteristics Power Dissipation vs Output Power Power Dissipation vs Output Power Single Channel 1kHz, THD+N ≤ 1.0%, BW < (Continued) 200887C4 80kHz 200887C7 13 Power Dissipation vs Output Power 200887C5 Power Derating Curve 200887C8 www.national.com ...
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Application Information STEREO-INPUT MULTIPLEXER (STEREO MUX) Typical LM4883 applications use the MUX to switch between two stereo input signals. Each stereo channel’s gain can be tailored to produce the required output signal level. Choos- ing the input and feedback resistor ...
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Application Information * Refer to the section Selecting Proper External Components, for a detailed discussion of C5 size. FIGURE 3. Typical Audio Amplifier Application Circuit BRIDGE CONFIGURATION EXPLANATION As shown in Figure 3, the LM4883 consists of two pairs of ...
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Application Information PCB, the LM4883SQ’s θ is 20˚C/W. At any given ambient JA temperature T , use Equation (4) to find the maximum inter- A nal power dissipation supported by the IC packaging. Rear- ranging Equation (4) and substituting P ...
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Application Information placing the LM4883 in bridged mode operation. The output coupling capacitor blocks the amplifier’s half supply DC volt- age, protecting the headphones. The HP-IN threshold is set at 4V. While the LM4883 operates in bridged mode, the DC ...
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Application Information current source changes the voltage of the BYPASS pin in a controlled, linear manner. Ideally, the input and outputs track the voltage applied to the BYPASS pin. The gain of the internal amplifiers remains unity until the voltage ...
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Application Information RECOMMENDED PRINTED CIRCUIT BOARD LAYOUT Figures 5 through 7 show the recommended two-layer PC board layout that is optimized for the 24-pin SQ package. These circuits are designed for use with an external 5V supply and 8Ω, 4Ω, ...
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Demonstration Board Layout www.national.com FIGURE 5. Top Layer FIGURE 6. Bottom Layer 20 20088727 20088725 ...
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Demonstration Board Layout (Continued) FIGURE 7. Silkscreen 21 20088726 www.national.com ...
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Bill of Materials Analog Audio LM4883SQ Eval Board Assembly Part Number: 551012279–001 Revision: A Item Part Number 1 551012279–001 LM4883SQ Eval Board PCB etch Tant Cap 1µF 16V 10% Size = A 5 Tant Cap 100µF 16V ...
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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 ...