lm4836mtx National Semiconductor Corporation, lm4836mtx Datasheet
![no-image](/images/no-image-200.jpg)
lm4836mtx
Available stocks
Related parts for lm4836mtx
lm4836mtx Summary of contents
Page 1
... LLP Package Top View Order Number LM4836LQ See NS Package LQA028AA for Exposed-DAP LLP Boomer ® registered trademark of NationalSemiconductor Corporation. © 2004 National Semiconductor Corporation Key Specifications THD into 3Ω (LM4836LQ, LM4836MTE) n into 4Ω (LM4836LQ, LM4836MTE) n into 8Ω (LM4836) n Single-ended mode - THD+N at 85mW into 32Ω ...
Page 2
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 13) ESD Susceptibility (Note 14) ESD Susceptibility (Note 15) Junction ...
Page 3
Electrical Characteristics for Single-Ended Mode Operation (Notes 8, 12) The following specifications apply for V Symbol Parameter SNR Signal to Noise Ratio X Channel Separation talk Electrical Characteristics for Bridged Mode Operation (Notes 8, 12) The following specifications apply for ...
Page 4
www.national.com 4 ...
Page 5
Truth Table for Logic Inputs Mute Mux Control Note 18: If system beep is detected on the Beep in pin (pin 11) and beep is fed to inputs, the system ...
Page 6
Typical Performance Characteristics MTE Specific Characteristics LM4836MTE Power Dissipation vs Output Power LM4836MTE (Note 19) Power Derating Curve Note 19: These curves show the thermal dissipation ability of the LM4836MTE at different ambient temperatures given these conditions: 2 500LFPM + ...
Page 7
Typical Performance Characteristics Non-MTE Specific Characteristics THD+N vs Frequency THD+N vs Frequency THD+N vs Frequency 10108857 10108814 10108816 7 THD+N vs Frequency 10108858 THD+N vs Frequency 10108815 THD+N vs Frequency 10108817 www.national.com ...
Page 8
Typical Performance Characteristics Non-MTE Specific Characteristics THD+N vs Frequency THD+N vs Frequency THD+N vs Frequency www.national.com (Continued) THD+N vs Frequency 10108818 THD+N vs Frequency 10108820 THD+N vs Output Power 10108822 8 10108819 10108821 10108824 ...
Page 9
Typical Performance Characteristics Non-MTE Specific Characteristics THD+N vs Output Power THD+N vs Output Power THD+N vs Output Power (Continued) THD+N vs Output Power 10108825 THD+N vs Output Power 10108827 THD+N vs Output Power 10108829 9 10108826 10108828 10108830 www.national.com ...
Page 10
Typical Performance Characteristics Non-MTE Specific Characteristics THD+N vs Output Power THD+N vs Output Power THD+N vs Output Voltage Docking Station Pins www.national.com (Continued) THD+N vs Output Power 10108831 THD+N vs Output Power 10108833 THD+N vs Output Voltage Docking Station Pins ...
Page 11
Typical Performance Characteristics Non-MTE Specific Characteristics Output Power vs Load Resistance Output Power vs Load Resistance Dropout Voltage (Continued) 10108862 10108807 10108853 11 Output Power vs Load Resistance 10108806 Power Supply Rejection Ratio 10108838 Output Power vs Load Resistance 10108808 ...
Page 12
Typical Performance Characteristics Non-MTE Specific Characteristics Noise Floor Volume Control Characteristics Power Dissipation vs Output Power www.national.com (Continued) 10108841 10108810 10108852 12 Noise Floor 10108842 Power Dissipation vs Output Power 10108851 External Gain/ Bass Boost Characteristics 10108861 ...
Page 13
Typical Performance Characteristics Non-MTE Specific Characteristics Power Derating Curve Crosstalk Output Power vs Supply Voltage (Continued) 10108863 10108850 10108856 13 Crosstalk 10108849 Output Power vs Supply voltage 10108854 Supply Current vs Supply Voltage 10108809 www.national.com ...
Page 14
Typical Performance Characteristics Output Power vs Load Resistance Output Power vs Load Resistance Dropout Voltage www.national.com 10108862 10108807 10108853 14 Output Power vs Load Resistance 10108806 Power Supply Rejection Ratio 10108838 Output Power vs Load Resistance 10108808 ...
Page 15
Typical Performance Characteristics Noise Floor Volume Control Characteristics Power Dissipation vs Output Power (Continued) 10108841 10108810 10108852 15 Noise Floor 10108842 Power Dissipation vs Output Power 10108851 External Gain/ Bass Boost Characteristics 10108861 www.national.com ...
Page 16
Typical Performance Characteristics Power Derating Curve Crosstalk Output Power vs Supply Voltage www.national.com (Continued) 10108863 10108850 10108856 16 Crosstalk 10108849 Output Power vs Supply voltage 10108854 Supply Current vs Supply Voltage 10108809 ...
Page 17
Application Information EXPOSED-DAP PACKAGE PCB MOUNTING CONSIDERATIONS The LM4836’s exposed-DAP (die attach paddle) packages (MTE and LQ) provide a low thermal resistance between the die and the PCB to which the part is mounted and soldered. This allows rapid heat ...
Page 18
Application Information However, a direct consequence of the increased power de- livered to the load by a bridge amplifier is higher internal power dissipation for the same conditions. The LM4836 has two operational amplifiers per channel. The maximum internal power ...
Page 19
Application Information the pop is directly proportional to the input capacitor’s size. Higher value capacitors need more time to reach a quiescent DC voltage (usually V /2) when charged with a fixed cur- DD rent. The amplifier’s output charges the ...
Page 20
Application Information accommodate this system alert signal, the LM4836’s pin mono input that accepts the beep signal. Internal level detection circuitry at this input monitors the beep signal’s magnitude. When a signal level greater than V tected ...
Page 21
Application Information FIGURE 3. Headphone Sensing Circuit BASS BOOST FUNCTION The LM4836 has a bass-boost feature that enhances the low frequency response in applications using small speakers. The voltage level applied to the BASS BOOST SELECT pin controls the bass-boost ...
Page 22
Application Information The Output Power vs Supply Voltage graph for an 8Ω load indicates a minimum supply voltage of 4.6V. This is easily met by the commonly used 5V supply voltage. The additional voltage creates the benefit of headroom, allowing ...
Page 23
Application Information FIGURE 4. Recommended LQ PC Board Layout: FIGURE 5. Recommended LQ PC Board Layout: (Continued) Component-Side Silkscreen Component-Side Layout 23 10108878 10108879 www.national.com ...
Page 24
Application Information www.national.com (Continued) FIGURE 6. Recommended LQ PC Board Layout: Upper Inner-Layer Layout FIGURE 7. Recommended LQ PC Board Layout: Lower Inner-Layer Layout 24 10108880 10108881 ...
Page 25
Application Information FIGURE 8. Recommended LQ PC Board Layout: (Continued) Bottom-Side Layout 25 10108882 www.national.com ...
Page 26
Physical Dimensions NS Package Number LQA028A for Exposed-DAP LLP www.national.com inches (millimeters) unless otherwise noted LLP Package Order Number LM4836LQ 26 ...
Page 27
Physical Dimensions inches (millimeters) unless otherwise noted (Continued) NS Package Number MXA28A for Exposed-DAP TSSOP TSSOP Package Order Number LM4836MT NS Package Number MTC28 for TSSOP Exposed-DAP TSSOP Package Order Number LM4836MTE 27 www.national.com ...
Page 28
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. For the most current product information ...