LM4670SD/NOPB National Semiconductor, LM4670SD/NOPB Datasheet
LM4670SD/NOPB
Specifications of LM4670SD/NOPB
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LM4670SD/NOPB Summary of contents
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... Typical Application FIGURE 1. Typical Audio Amplifier Application Circuit Boomer ® registered trademark of National Semiconductor Corporation. © 2006 National Semiconductor Corporation Key Specifications j Efficiency at 3.6V, 100mW into 8Ω speaker 77% (typ) j Efficiency at 3.6V, 600mW into 8Ω speaker 88% (typ) j Efficiency at 5V, 1W into 8Ω ...
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Connection Diagrams 9 Bump micro SMD Package Top View Order Number LM4670ITL, LM4670ITLX See NS Package Number TLA09ZZA Leadless Leadframe Package (LLP) Top View Order Number LM4670SD See NS Package Number SDA08A Contact NSC Sales Office for Availability www.national.com micro ...
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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 + 0.3V ≥ V ≥ GND - 0.3V Voltage at Any Input Pin V DD Power Dissipation (Note 3) ESD Susceptibility (Note 4) ...
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Electrical Characteristics The following specifications apply for A apply for T = 25˚C. (Continued) A Symbol Parameter P Output Power (Note 11) O THD+N Total Harmonic Distortion + Noise PSRR Power Supply Rejection Ratio SNR Signal to Noise Ratio e ...
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Note 1: All voltages are measured with respect to the ground pin, unless otherwise specified. Note 2: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, ...
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Typical Performance Characteristics THD+N vs Frequency V = 2.5V 15µH + 4Ω + 15µ 375mW, 22kHz BW OUT THD+N vs Frequency 15µH + 4Ω + 15µ ...
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Typical Performance Characteristics THD+N vs Output Power R = 15µH + 4Ω + 15µ 1kHz, 22kHz BW CMRR vs Frequency V = 3.6V 15µH + 8Ω + 15µ Sine Wave, ...
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Typical Performance Characteristics Output Power vs Supply Voltage R = 15µH + 4Ω + 15µ 1kHz, 22kHz BW L Supply Current (RMS) vs Output Power R = 15µH + 4Ω + 15µ 1kHz L Shutdwon Threshold ...
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Typical Performance Characteristics Supply Current vs Shutdown Voltage R = 15µH + 8Ω + 15µH L Supply Current vs Supply Voltage R = Different µH loads L (Note 10) (Continued) Supply Current vs Supply Voltage R L 20089938 Differential Gain ...
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Application Information GENERAL AMPLIFIER FUNCTION The output signals generated by the LM4670 consist of two, BTL connected, output signals that pulse momentarily from near ground potential The two outputs can pulse DD independently with the exception that ...
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Application Information current usage while in the shutdown state. While the LM4670 may be disabled with shutdown voltages in between ground and supply, the idle current will be greater than the typical 0.01µA value. Increased THD may also be observed ...
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Application Information FIGURE 3. Differential input configuration with input capacitors www.national.com (Continued) FIGURE 2. Differential input configuration 12 20089903 20089904 ...
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Application Information FIGURE 4. Dual differential input configuration (Continued) FIGURE 5. Single-ended input configuration 13 20089905 20089906 www.national.com ...
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Application Information FIGURE 7. Dual input with a single-ended input and a differential input www.national.com (Continued) FIGURE 6. Dual single-ended input configuration 14 20089907 20089908 ...
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Application Information REFERENCE DESIGN BOARD SCHEMATIC In addition to the minimal parts required for the application circuit, a measurement filter is provided on the evaluation circuit board so that conventional audio measurements can be conveniently made without additional equipment. This ...
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Application Information LM4670 micro SMD BOARD ARTWORK Composite View Top Layer Internal Layer 2, V www.national.com (Continued) 20089932 20089937 DD 20089934 16 Silk Screen 20089935 Internal Layer 1, GND 20089933 Bottom Layer 20089931 ...
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Application Information LM4670 SDA BOARD ARTWORK Composite View Top Layer Internal Layer 2, V (Continued) 20089953 20089957 DD 20089955 17 Silk Screen 20089956 Internal Layer 1, GND 20089954 Bottom Layer 20089952 www.national.com ...
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Revision History Rev Date 1.0 12/15/04 1.1 7/06/05 1.2 7/13/06 www.national.com Description Initial WEB of the D/S (TL pkg). Re-released D/S to the WEB (added the SD package). Edited Note 9, then re-released D/S to the WEB. 18 ...
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Physical Dimensions inches (millimeters) unless otherwise noted 9 Bump micro SMD Order Number LM4670ITL, LM4670ITLX NS Package Number TLA09ZZA X1 = 1.463 X2 = 1.463 X3 = 0.600 LLP Order Number LM4670SD NS Package Number SDA08A 19 www.national.com ...
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... BANNED SUBSTANCE COMPLIANCE National Semiconductor follows the provisions of the Product Stewardship Guide for Customers (CSP-9-111C2) and Banned Substances and Materials of Interest Specification (CSP-9-111S2) for regulatory environmental compliance. Details may be found at: www.national.com/quality/green. ...