LM4701T National Semiconductor, LM4701T Datasheet
LM4701T
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LM4701T Summary of contents
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... Quiet fade-in/out mute function n Power conserving standby-mode n Non-Isolated 9-lead TO-220 package Applications n TVs n Component stereo n Compact stereo Connection Diagram Plastic Package Order Number LM4701T See NS Package Number TA9A For Staggered Lead Non-Isolated Package Only a 9-Pin Package DS100835-1 March 1998 0.1% (max) 0.08% (typ) 2.1 mA (typ) ...
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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 | (No Signal) Supply Voltage | (with Input and Load) Common Mode Input Voltage Differential Input Voltage Output Current ...
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Electrical Characteristics (Notes 4, 5) The following specifications are for V = 25˚C. ply for T A Symbol Parameter CMRR (Note Common Mode Rejection Ratio 2) A (Note 2) Open Loop Voltage Gain VOL GBWP Gain-Bandwidth Product e Input Noise ...
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Test Circuit # 1 (Note 2) (DC Electrical Test Circuit) Test Circuit # 2 (Note 3) (AC Electrical Test Circuit) Bridged Amplifier Application Circuit FIGURE 2. Bridged Amplifier Application Circuit www.national.com DS100835-3 DS100835-4 DS100835-5 4 ...
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Single Supply Application Circuit FIGURE 3. Single Supply Amplifier Application Circuit Auxillary Amplifier Application Circuit FIGURE 4. Auxillary Amplifier Application Circuit DS100835-6 DS100835-7 5 www.national.com ...
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Equivalent Schematic (Excluding Active Protection Circuitry) www.national.com 6 DS100835-8 ...
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External Components Description Components 1 R Prevents currents from entering the amplifier’s non-inverting input which may be passed through to the B load upon power down of the system due to the low input impedance of the circuitry when the ...
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Typical Performance Characteristics THD + N vs Frequency DS100835-10 THD + N vs Output Power DS100835-13 THD + N vs Output Power DS100835-16 Clipping Voltage vs Supply Voltage DS100835-19 www.national.com THD + N vs Frequency DS100835-11 THD + N vs ...
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Typical Performance Characteristics Power Dissipation vs Output Power DS100835-22 Output Power vs Load Resistance DS100835-25 Pulse Response DS100835-28 (Continued) Power Dissipation vs Ouput Power DS100835-23 Output Power vs Supply Voltage DS100835-26 Large Signal Response DS100835-29 9 Power Dissipation vs Output ...
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Typical Performance Characteristics Power Supply Rejection Ratio DS100835-31 Safe Area DS100835-34 Pulse Thermal Resistance DS100835-37 www.national.com (Continued) Common-Mode Rejection Ratio DS100835-32 Spike Protection Response DS100835-35 Pulse Thermal Resistance DS100835-38 10 Open Loop Frequency Response DS100835-33 Supply Current vs Supply Voltage ...
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Typical Performance Characteristics Pulse Power Limit DS100835-40 Standby Current ( Standby Pin Voltage DS100835-43 Application Information MUTE MODE By placing a logic-high voltage on the mute pin, the signal going into the amplifiers will be muted. If ...
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Application Information the fault condition is temporary, but a sustained fault will cause the device to cycle in a Schmitt Trigger fashion be- tween the thermal shutdown temperature limits of 165˚C and 155˚C. This greatly reduces the stress imposed on ...
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Application Information (Continued) The LM4701 possesses a mute and standby function with in- ternal logic gates that are half-supply referenced. Thus, to enable either the mute or standby function, the voltage at these pins must be a minimum of 2.5V ...
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Application Information point is 0.17 dB down from passband response which is bet- ± ter than the required 0.25 dB specified. This fact results in a low and high frequency pole and 100 kHz respec- tively. As ...
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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. For Staggered Lead Non-Isolated Package Only a 9-Pin Package Order Number LM4701T NS Package Number TA9A 2. A critical component is any component of a life ...