Resolved how far can we drive lme49810,lme49811,lme49830. Lme49811tbnopb texas instruments integrated circuits. Old version datasheet lme49810 200v audio power amplifier driver with baker clamp. If youre still in two minds about lme49810 amplifier and are thinking about choosing a similar product, aliexpress is a great place to compare prices and sellers. Snas391b may 2007 revised september 2007 lme49810 200v audio power amplifier driver with baker clamp check for samples. If clpflag pin is not used, then it should be connected through a resistor to a reference voltage so that iflag is below 10ma. Nsc 200v audio power amplifier driver with baker clamp,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Lme49830 scalable output power output stages mono high.
Lme49811 data sheet shows that the chip has a much lower driving capability compared to 4981049830. Dual dc 2080v 24v 48v lme49810 mono channel 100w hifi. At a lower supply voltage some resistors have to be changed. Lme49810 1features description the lme49810 is a high fidelity audio power amplifier 2 very high voltage operation driver designed for demanding consumer and pro. Project 41 showcases texas instruments lme49830 fully complementary, bipolar, ultrahigh fidelity power amplifier input stage driver chip optimized for driving just about any available power mosfets. Lme49811 high fidelity 200 volt power amplifier input stage, national semiconductor. All the items will be dispatched within 1 business day after the payment cleared. Comparing lme49810, 49830 and 49811 page 2 diyaudio. Similar to its predecessor, lm4702, it is a highvoltage power driver but in mono design.
Lme49811tbnopb texas instruments integrated circuits ics. Lme49810 audio amplifier module v1 connex electronic. Maxim alternatives to the national semiconductor lme is the max410, max412, max414 singledualquad, 28mhz, lownoise, lowvoltage, precision op amps. Lme49860, lme49860mabd, lme49860nabd 1features key specifications 2 easily drives 600.
Pricing and availability on millions of electronic components from digikey. Lme49811 1features description the lme49811 is a high fidelity audio power amplifier 2 very high voltage operation input stage designed for demanding. Im trying to achieve as much as 1200w in 8 ohms or preferably more than that. Introduction design engineers face the challenge extracting the best possible performance from the least expensive. Typical performance characteristics data taken with bandwidth 30khz, av 29db, cc 10pf, and ta 25c except where specified. The lme49830 ef125wt1 amplifier pcb module showcases the lme ultrahighfidelity power amplifier input stage ics drivers. Well help you to work out whether its worth paying extra for a highend version or whether youre getting just as. Looking to buy some opamps for rolling then stumbled on a thread with people saying that the three are the same thing. Ampli ini menggunakan ic driver lme49811 yang menurut orang national semiconductor punya suara yang paling bagus diantara driver lainnya seperti lme49810 dan lme49830. I have a 4p1l preamp which drives very well my avc, however, i have now an lme amp which has a wimpy input impedance of less than 7k. The lme49810 is a high fidelity audio power amplifier driver designed for demanding consumer and proaudio applications. Lme49810 datasheet, lme49810 datasheets, lme49810 pdf, lme49810 circuit. For example, a resistor of 1k can be used with a 5v reference voltage. Thanks to tims suggestion to implement allen wrights super linear cathode follower slcf which forces the valve to operate in constant voltage in addition to the constant current by bootstrapping the cathode to the anode using an extra follower, distortion is reduced further.
This is also true for the feedback resistors, when the input sensitivity should remain the same. Lme49810 200v audio power amplifier driver with baker clamp. Lme49811 thd vs output level for different gain sets and r12 values. Lme49811tbnopb national semiconductor, lme49811tbnopb datasheet. Snas394c december 2007 revised april 20 lme49811 audio power amplifier series high fidelity 200 volt power amplifier input stage with shutdown check for samples. Qwatt simple audio power amplifier 110656 elektor labs. Lme49860 44v dual high performance, high fidelity audio. The lme and this data sheet are intended for use by oems which integrate the burner controls in their products. Here is my circuit adopting the famous lme49811 amplifier frontend and thermaltrak tm. The lme49830 is a high performance driver that features lownoise, very low distortion, thermal shutdown and user adjustable compensation to. Application note component selection and pcb layout. Lme49811 is a high fidelity power amplifier input stage capable of driving an output stage of bipolar or even some mosfet transistors. Compared to lm4702, the new chip has higher drive current, higher slew rate and baker clamp.
Mar 03, 20 how far can we drive lme49810, lme49811,lme49830. As a builder option, their values can be changed to achieve the desired voltage gain. High performing, monolithic classd amplifier portfolio with high bandwidth and extremely low distortion, enabling highresolution audio for applications from 35w to 600w output. Lme49810 1features description the lme49810 is a high fidelity audio power amplifier 2 very high voltage operation driver designed for demanding consumer and pro output clamp logic output audio. Project 8 is a noninverting configuration and the gain is determined by the ratio of r6 rf and r2 ri. Lm4702 or lme49810 work in class a mode to drive the output.
Transistor thermal heat sink must be well insulated. Lme49810 pdf, lme49810 description, lme49810 datasheets. Lm4562 lme49720 lme49860 do they sound different to you. Lme49830tb ultrahigh fidelity high power amplifier. Ic amp audio pwr 500w to24715 online from elcodis, view and download lme49811tbnopb pdf datasheet, linear amplifiers audio specifications. Project 41 is configured as a noninverting amplifier. Dual dc 2080v 24v 48v lme49810 mono channel 100w hifi audio. Nsc, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. The voltage is constant only in the sense that at full power, the voltage in the. Lme49830tbnopb texas instruments integrated circuits. Lme49810 is the newest power opamp from national semiconductor. The lme49810 builtin high quality, highperformance power amplifier output stage drives the audio circuit can be replaced by multipieces of discrete components. I have tested lme49810 and lme49811 in the same audio. When using a discrete output stage the lme49810 is capable of delivering in excess of 300 watts into a singleended 8.
Ti recommends that the gain should be set no lower than 26db otherwise lme49811 may experience instability, however for this project the gain is set at about 29. Audio power amp series high fidelity 200 volt power amp input. National offers a very good data sheet about the chip. Texas instruments lme49720 series audio amplifiers mouser. The extra follower on top of the cathode follower could be another valve. Using lme49810 to build a highperformance power amplifier.
Ssm2017 line preamplifier high quality design january 20, 2012 by ventsislav simonov 4 comments this page will show you how to use the ssm2017 as a line preamplifier. Lme49830tbnopb amplifier ic 1channel mono class ab to24715 from texas instruments. Amplifier output power may be scaled by changing the supply voltage and number of power transistors. Maxim alternatives for the national semiconductor lme. Texas instruments lme49720 series audio amplifiers are available at mouser electronics. Mono high fidelity 200 volt mosfet power amplifier input stage with mute, lme49830 datasheet, lme49830 circuit, lme49830 data sheet. This one is a rather conventional topology but implementing some tricks to improve the performance. With this chip, constructing a highperformance power amplifier is rather simple. Under normal circumstances, united states buyerspackage is expected to be delivered within 9 to 15 business days with tracking.
Lme49811 high fidelity 200 volt power amplifier input stage with shutdown. An1850lme49830tb ultrahighfidelity high power amplifier. Address the needs of any audio application with the industrys broadest portfolio of speaker amplifiers, ranging in power levels, topology, performance and features. Lme49810 200v audio power amplifier driver with baker. Burner controls for the supervision of 1 or 2stage gas or gas oil burners of small to medium capacity, intermittent operation with or without fan. Lme49810 is a high fidelity audio power amplifier buffer driver.
Lme49860 44v dual high performance, high fidelity audio operational amplifier check for samples. Well help you to work out whether its worth paying extra for a highend version or whether youre getting just as good a deal by getting the cheaper item. Constantvoltage speaker systems refer to networks of loudspeakers which are connected to an audio amplifier using stepup and stepdown transformers to simplify impedance calculations and to minimize power loss over the speaker cables. March 2007 lme high performance, high fidelity audio operational amplifier general description the lme is part of the ultralow distortion, low noise. Lme49830tbnopb texas instruments integrated circuits ics. Lme49830tb ultrahigh fidelity high power amplifier reference design national semiconductor application note 1850 troy huebner john decelles december 2, 2008 introduction the lme49830 ef125wt1 amplifier pcb module showcases national semiconductors lme ultrahigh fidelity power amplifier input stage ics drivers. Lm4562 lme49720 lme49860 do they sound different to. They are more appropriately called highvoltage audio distribution systems. The differences between topologies, pcb layouts, and components used are discussed with emphasis on bom cost vs. Pdf 0356397300 590280002jp aecq003 lme49811 lme49810 lm3881 lm49450 lm903 lmh6714 lp2953 aecq100 lm3430. Lme49811 old version datasheet audio power amplifier series high fidelity 200 volt power amplifier input stage with shutdown. System electrical characteristics for lme49600 the following specifications apply for vs 15v, fin 1khz, unless otherwise specified. Pricing and availability on millions of electronic components from digikey electronics. A typical challenge we may all face is how to drive effectively our amp via a stepped attenuator or an avc.
Lme high performance, high fidelity audio operational. Lme49810 200v audio power amplifier driver with baker clamp general description the lme49810 is a high fidelity audio power amplifier driver designed for demanding consumer and proaudio applications. Nsc, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated. Lme49811 datasheet, lme49811 pdf, lme49811 data sheet, lme49811 manual, lme49811 pdf, lme49811, datenblatt, electronics lme49811, alldatasheet, free, datasheet. Oct 22, 2016 highend power amplifier circuit using ic lme49810 as a driver amplifier and using transistor 2sc5200 2sa1943. Lme49810 datasheet, cross reference, circuit and application notes in pdf format. Snas391c may 2007 revised april 20 lme49810 200v audio power amplifier driver with baker clamp check for samples. This article shows examples of possible tradeoffs for bill of materials cost vs. Highend power amplifier lme49810 2sc5200 2sa1943 power. Mono maximum power do not exceed 100w or it may burn ic. Also read all other data sheets about lme49810, 49830 and lm4702. Pdf an1849 lme49810 400w audio amplifier lme49811 dz1 zener diode lme49810 lme49810 application notes unregulated power supply using bridge rectifier 400w transistor audio amplifier schematic of diode used in bridge rectifier of linear regulated power supply lme49830 400w transistor audio amplifier.
Symbol parameter conditions lme units limits typical limit v note 6 notes 7, 8 outmax maximum output voltage swing rl 600. The application for this for public address amplifiers where the requirement goes beyond 2000w rms into 8ohms there is one labgruppen amplifiers can deliver more than 4000 in 8 ohms. Thanks for posting your questions and your interest in our products. Lme49810 200v audio power amplifier driver, national semiconductor. Lme49811tbnopb amplifier ic 1channel mono class ab to24715 from texas instruments. Audio power amp series high fidelity 200 volt power amp. Ssm2017 line preamplifier high quality design diy audio. Lme49830tb ultrahigh fidelity high power amplifier reference. High fidelity 200 volt power amplifier input stage with shutdown.
56 797 344 1354 1131 62 422 1056 1049 233 276 530 965 597 1468 764 478 465 519 1029 456 1126 848 277 93 909 313 510 631 213 1090 549 1149