lm4869mh National Semiconductor Corporation, lm4869mh Datasheet
lm4869mh
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lm4869mh Summary of contents
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... Thermal shutdown protection circuit n Ultra low current micropower shutdown mode n 2.0V to 5.5V operation n Available in space-saving exposed-DAP TSSOP package Applications n Notebook computers n PDAs n Portable electronic devices 1.9W (typ) 1.2W (typ) Top View 20042802 Order Number LM4869MH DS200428 August 2002 0.1µA (typ) = 5V, (Fig.1)) 62dB (typ) DD www.national.com ...
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Typical Application FIGURE 1. Typical Audio Amplifier Application Circuit www.national.com 2 20042801 ...
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Absolute Maximum Ratings 3) 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) ...
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... Note 11: Datasheet minimum and maximum specification limits are guaranteed by design, test, or statistical analysis. Note 12: Output power is measured at the amplifier’s package pins. Note 13: When driving 4Ω loads and operating supply, the LM4869MH must be mounted to a circuit board that has a minimum of 2.5in uninterrupted copper area connected to the LLP package’s exposed DAP. ...
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Typical Performance Characteristics MH Specific Characteristics THD vs Frequency 4Ω 1000mW OUT at (from top to bottom at 1kHz 21.6dB 15.6dB 10dB, A ...
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Typical Performance Characteristics MH Specific Characteristics THD vs Output Power 4Ω (from top to bottom at 200mW 21.6dB 15.6dB 10dB 6dB ...
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Typical Performance Characteristics MH Specific Characteristics THD vs Output Power 8Ω 20kHz (from top to bottom at 200mW 21.6dB 15.6dB 10dB, ...
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Typical Performance Characteristics MH Specific Characteristics PSRR vs Frequency 8Ω SOURCE V = 200mV , at (from top to bottom at 1kHz): RIPPLE P 21.6dB 15.6dB ...
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Typical Performance Characteristics MH Specific Characteristics THD vs Output Power 4Ω (from top to bottom at 100mW 21.6dB 15.6dB 6dB ...
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Typical Performance Characteristics MH Specific Characteristics THD vs Output Power 8Ω (from top to bottom at 200mW 21.6dB 15.6dB 10dB ...
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Typical Performance Characteristics MH Specific Characteristics Channel-to-Channel gain Mismatch vs Power Supply Voltage R = 4Ω 1kHz (from top to bottom at 4V 21.6dB 15.6dB 10dB, A ...
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Typical Performance Characteristics MH Specific Characteristics Amplifier Power Dissipation vs Amplifier Load Dissipation 1kHz, at (from top to bottom at 1W 4Ω 8Ω, single channel driven and loaded L ...
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Typical Performance Characteristics MH Specific Characteristics Cross Talk vs Frequency 8Ω 15.6dB Left channel driven, right channel measured Right channel driven, left channel measured Cross Talk ...
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Typical Performance Characteristics MH Specific Characteristics Cross Talk vs Frequency 8Ω Left channel driven, right channel measured Right channel driven, left channel measured (from top to bottom at ...
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Application Information BRIDGE CONFIGURATION EXPLANATION As shown in Figure 1, each of the LM4869’s stereo channels consists of two operational amplifiers. The LM4869 can be used to drive a speaker connected between the two outputs of each channel’s amplifiers. Figure ...
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Application Information pin that is as near to GND as possible. A voltage that is greater than GND may increase the shutdown current. There are a few methods to control the micro-power shut- down. These include using a single-pole, single-throw ...
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Application Information Ton 0.47µF i 0.01µF 110ms 0.1µF 120ms 0.22µF 140ms 0.47µF 170ms 1.0µF 240ms In order eliminate ’clicks and pops’, all capacitors must be discharged before turn-on. Rapidly switching V allow the capacitors to fully ...
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RECOMMENDED PRINTED CIRCUIT BOARD LAYOUT Figures 2 through 6 show the recommended four-layer PC board layout that is optimized for the 20-pin MH-packaged LM4869 and associated external components. This circuit is designed for use with an external 5V supply and ...
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FIGURE 6. Recommended MH PC Board Layout: Bottom-Side Layout 19 200428E1 www.national.com ...
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... 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 specifications. inches (millimeters) unless otherwise noted Exposed-DAP TSSOP Package Order Number LM4869MH 2. A critical component is any component of a life support device or system whose failure to perform ...