LM4892 NSC [National Semiconductor], LM4892 Datasheet
LM4892
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LM4892 Summary of contents
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... The LM4892 contains advanced pop & click circuitry which eliminates noise which would otherwise occur during turn-on and turn-off transitions. The LM4892 is unity-gain stable and can be configured by external gain-setting resistors. Typical Application FIGURE 1. Typical Audio Amplifier Application Circuit (Pin #’s apply to M & MM packages) Boomer ® ...
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... Connection Diagrams 8 Bump micro SMD Top View Order Number LM4892IBP, LM4892IBPX See NS Package Number BPA08DDB Mini Small Outline (MSOP) Package Top View Order Number LM4892MM See NS Package Number MUA08A SO Marking Top View XY - Date Code TT - Die Traceability Bottom 2 lines - Part Number LLP Package ...
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... T A MAX 2.2V ≤ 25˚C. A LM4892 Typical Limit (Note 6) (Note (max) 2.5 mA (max) 0.1 µA (max 0.8 0 217Hz 1kHz) A LM4892 Typical Limit (Note 6) (Note 7) 3.5 mA (max) 2.0 mA (max) 0.1 µA (max) 0.4 35 2.6 0.8 0.1 www.national.com 56˚C/W 190˚C/W ≤ 85˚C A ≤ 5.5V DD Units (Limits ...
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... Note 8: For micro SMD only, shutdown current is measured in a Normal Room Environment. Exposure to direct sunlight will increase I Note 9: The Exposed-DAP of the LDA10B package should be electrically connected to GND or an electrically isolated copper area. The LM4892LD demo board (views featured in the Application Information section) has the Exposed-DAP connected to GND with a PCB area of 353mils x 86.7mils (8.97mm x 2.20mm) on the copper top layer and 714 ...
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External Components Description Components 4. C Supply bypass capacitor which provides power supply filtering. Refer to the Power Supply Bypassing S section for information concerning proper placement and selection of the supply bypass capacitor Bypass pin capacitor which ...
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Typical Performance Characteristics THD+N vs Power Out 5V, 8Ω THD+N vs Power Out 2.6V, 8Ω Power Supply Rejection Ratio (PSRR) vs Frequency 5V, 8Ω Input ...
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Typical Performance Characteristics Power Supply Rejection Ratio (PSRR) vs Frequency 2.6V, 8Ω Input terminated with 10Ω R Power Dissipation vs Output Power V = 3.3V DD Output Power vs Load Resistance (Continued) Power Supply Rejection ...
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Typical Performance Characteristics Supply Current vs Shutdown Voltage Open Loop Frequency Response Load DD Power Derating Curves www.national.com (Continued) Clipping (Dropout) Voltage vs 20012753 Open Loop Frequency Response 20012787 Power Derating Curves vs for 8 Bump ...
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Typical Performance Characteristics Frequency Response vs Input Capacitor Size THD+N vs Frequency 5V 32Ω, PWR = 70mW, Headphone mode DD L Output Power vs Supply Voltage R = 8Ω L (Continued) 20012754 THD+N vs Power ...
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... By adding additional copper foil, the thermal resistance of the application can be reduced from a free air value of 150˚C/W, resulting in higher P can be added to any of the leads connected to the LM4892 especially effective when connected to V the output pins. Refer to the application information on the LM4892 reference design board for an example of good heat sinking ...
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... HP-Sense pin (pin3) at approximately 50mV. This 50mV enables the LM4892 and places it in bridged mode operation. While the LM4892 operates in bridged mode, the DC poten- tial across the load is essentially 0V. Since the HP-Sense threshold is set at 4V, even in an ideal situation, the output swing can not cause a false single-ended trigger ...
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... The high frequency pole is determined by the product of the desired frequency pole, f With a A 150kHz which is much smaller than the LM4892 GBWP of 4 MHz. This figure displays that if a designer has a need to using Equation 2 opeak design an amplifier with a higher differential gain, the ...
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... Application Information The LM4892 is unity-gain stable and requires no external components besides gain-setting resistors, an input coupling capacitor, and proper supply bypassing in the typical appli- cation. However closed-loop differential gain of greater than 10 is required, a feedback capacitor (C needed as shown in Figure 3 to bandwidth limit the amplifier. ...
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Application Information FIGURE 4. Reference Design Schematic For Demo Boards www.national.com (Continued) 14 20012775 ...
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... Application Information LM4892 micro SMD BOARD ARTWORK (Continued) Silk Screen Top Layer Bottom Layer 15 20012757 20012758 20012759 www.national.com ...
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... Application Information LM4892 SO DEMO BOARD ARTWORK Silk Screen Top Layer Bottom Layer www.national.com LM4892 MSOP DEMO BOARD ARTWORK (Continued) 20012762 20012763 20012764 16 Silk Screen 20012765 Top Layer 20012766 Bottom Layer 20012767 ...
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... Application Information Composite View Top Layer LM4892 LLP DEMO BOARD ARTWORK (Continued) 20012790 20012792 17 Silk Screen 20012791 Bottom Layer 20012793 www.national.com ...
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... This technique will require a greater amount of design time but will not increase the final price of the board. The only extra parts required will be some jumpers. www.national.com (Continued) Mono LM4892 Reference Design Boards Bill of Material for all Demo Boards Qty ...
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... Recommend non-solder mask defined landing pad. 4. Pin 1 is established by lower left corner with respect to text orientation pins are numbered counterclockwise. 5. Reference JEDEC registration MO-211, variation BC 1.361 8-Bump micro SMD Order Number LM4892IBP, LM4892IBPX NS Package Number BPA08DDB ± ± 0. 1.361 0. 0.850 19 ± ...
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... Physical Dimensions www.national.com inches (millimeters) unless otherwise noted (Continued) MSOP Order Number LM4892MM NS Package Number MUA08A 20 ...
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... Physical Dimensions inches (millimeters) unless otherwise noted (Continued) SO Order Number LM4892M NS Package Number M08A 21 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 (Continued) LLP Order Number LM4892LD NS Package Number LDA10B 2. A critical component is any component of a life ...