LM4954TLX National Semiconductor, LM4954TLX Datasheet
LM4954TLX
Specifications of LM4954TLX
Related parts for LM4954TLX
LM4954TLX Summary of contents
Page 1
... The LM4954 is unity-gain stable and can be configured by external gain-setting resistors. Typical Application FIGURE 1. Typical Audio Amplifier Application Circuit Boomer ® registered trademark of National Semiconductor Corporation. © 2005 National Semiconductor Corporation Key Specifications j Wide Power Supply Voltage Range j Output Power: V ...
Page 2
... Connection Diagrams 9 Bump micro SMD Top View Order Number LM4954TL, LM4954TLX See NS package Number TLA0911A www.national.com 9 Bump micro SMD Marking T - Die Traceability G - Boomer Family 20129186 2 20129191 Top View X - Date Code F2 - LM4954TL ...
Page 3
... 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 Input Voltage Power Dissipation (Note 3) ESD Susceptibility (Note 4) ESD Susceptibility (Note 5) Junction Temperature Electrical Characteristics V The following specifications apply for V 25˚ ...
Page 4
Electrical Characteristics V The following specifications apply for V 25˚C. Symbol Parameter I Quiescent Power Supply Current DD I Shutdown Current SD V Output Offset Voltage OS P Output Power o THD+N Total Harmonic Distortion + Noise PSRR Power Supply ...
Page 5
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, ...
Page 6
Typical Performance Characteristics THD+N vs Output Power 8Ω 1kHz, 80kHz BW THD+N vs Output Power 8Ω 1kHz, 80kHz BW THD+N ...
Page 7
Typical Performance Characteristics THD+N vs Output Power 8Ω 1kHz, 80kHz BW THD+N vs Output Power 4Ω 1kHz, 80kHz ...
Page 8
Typical Performance Characteristics THD+N vs Differential Gain 8Ω 600mW, 80kHz BW OUT PSRR vs Frequency 200mV DD RIPPLE Input Terminated, 80kHz BW Output Power vs Supply ...
Page 9
Typical Performance Characteristics Power Dissipation vs Output Power 6dB THD+N ≤ 1%, 80kHz BW Power Dissipation vs Output Power 6dB THD+N ≤ 1%, 80kHz BW Shutdown ...
Page 10
Application Information BRIDGE CONFIGURATION EXPLANATION As shown in Figure 1, the LM4954 has two operational amplifiers internally, allowing for a few different amplifier configurations. The first amplifier’s gain is externally config- urable, while the second amplifier is internally fixed in ...
Page 11
Application Information reproduce signals below 100Hz to 150Hz. Thus, using a large input capacitor may not increase actual system perfor- mance. In addition to system cost and size, click and pop perfor- mance is affected by the size of the ...
Page 12
Application Information FIGURE 3. DIFFERENTIAL AMPLIFIER CONFIGURATION FOR LM4954 FIGURE 4. REFERENCE DESIGN BOARD SCHEMATIC www.national.com (Continued) 12 20129109 20129110 ...
Page 13
Application Information LM4954 micro SMD BOARD ARTWORK (Note 10) Composite View Top Layer Internal Layer 2, V (Continued) 20129115 20129119 DD 20129117 13 Silk Screen 20129118 Internal Layer 1, GND 20129116 Bottom Layer 20129114 www.national.com ...
Page 14
Application Information TABLE 1. Mono LM4954 Reference Design Boards Bill of Materials Designator Value R 20kΩ 20kΩ 0.39µ 2.2µ 2.2µ ...
Page 15
Revision History Rev 1.1 4/29/05 1.2 6/08/05 1.3 6/15/05 1.4 6/20/05 1.5 6/22/05 Date Added curves 71 and 72. Edited Note 10. Changed Av = 26dB to 6dB under 7V EC table. Edited SHUTDOWN FUNCTION under the Application section. Removed ...
Page 16
... Email: new.feedback@nsc.com Tel: 1-800-272-9959 Deutsch Tel: +49 (0) 69 9508 6208 English www.national.com Français Tel: +33 ( 8790 9-Bump micro SMD Order Number LM4954TL, LM4954TLX NS Package Number TLA0911A ± ± 0. 1.488 0. 0. critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system affect its safety or effectiveness ...