Low Frequency Amplifier

In: Science

Submitted By gsp123
Words 3557
Pages 15
The UTC TDA2030 is a monolithic audio power amplifier integrated circuit.


* Very low external component required. * High current output and high operating voltage. * Low harmonic and crossover distortion. * Built-in Over temperature protection. * Short circuit protection between all pins. * Safety Operating Area for output transistors.

*Pb-free plating product number: TDA2030L

Ordering Number Normal Lead Free Plating TDA2030-TA5-T TDA2030L-TA5-T TDA2030-TB5-T TDA2030L-TB5-T Package TO-220-5 TO-220B Packing Tube Tube

PIN NO. 1 2 3 4 5 PIN NAME Non inverting input Inverting input -VS Output +VS

www.unisonic.com.tw Copyright © 2007 Unisonic Technologies Co., Ltd

1 of 13



PARAMETER SYMBOL RATINGS UNIT 18 Supply Voltage Vs V Input Voltage VIN Vs V 15 Differential Input Voltage VI(DIFF) V Peak Output Current(internally limited) IOUT 3.5 A Total Power Dissipation at Tc=90°C PD 20 W Junction Temperature TJ -40~+150 °C Storage Temperature TSTG -40~+150 °C Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied.

ELECTRICAL CHARACTERISTICS (Refer to the test circuit, Vs
PARAMETER Supply Voltage Quiescent Drain Current Input Bias Current Input Offset Voltage Input Offset Current Power Bandwidth SYMBOL TEST CONDITIONS Vs IQ II(BIAS) Vs 18v VI(OFF) II(OFF) BW POUT=12W, RL=4Ω, Gv=30dB d=0.5%, Gv=30dB RL=4Ω f=40Hz to 15KHz RL=8Ω POUT d=10%, Gv=30dB RL=4Ω f=1KHz RL=8Ω Gvo Gvc f=1kHz POUT=0.1 to 12W, RL=4Ω f=40Hz to 15KHz, Gv=30dB THD POUT=0.1 to 8W, RL=8Ω f=40Hz to 15KHz,…...

Similar Documents

Radio Frequency

...Radio Frequency Identification system Riordan Manufacturing Radio Frequency Identification (RFID) is a widely used wireless device to scan products. It is a non contact wireless device, which uses radio frequency electromagnetic fields that transfer data from a unique tag placed on products for purchase. Tags will be placed upon every item which will include raw materials, plastic beverages, cooling fans, stents, bottles, and storage containers. This device is non contact unlike the bar code technology, RFID removes the need to have straight line contact like the bar code requires. TH RFID can scan from distances as far as 100 feet. The hardware consists of an antenna and a transceiver. Both of these hardware’s read and delivers the information to a processing device. This streamlines the tracking process throughout the ordering and shipping process. Sales department fills the order and enters the data into the billing and shipping system. At this point the order goes on to the customer shipping department where it is processed for shipment and then loaded on to the delivery truck. All of the items shipped on a daily basis are updated by time and date, and truck number the order has been shipped on. Several benefits come from an RFID system. The enhancement of the supply chain visibility will deliver more efficiency, speed, and allows for tracking products throughout the shipment process. In addition, reducing costs due to efficient waste management. The RFID has many......

Words: 286 - Pages: 2

Frequency Response

...Abstract There is a growing importance for the studies of frequency stability and control of power system with increasing levels of wind power penetration, especially in United States with a goal of 20% or more by 2030. The increasing penetration of wind in to existing synchronous based generation capacity requires the modifications in the procedures of grid frequency control as wind turbine units fail to provide inertial support and primary control reserves during the initial and later stages of frequency events respectively. Therefore, it is necessary for the wind turbines to emulate the response of current synchronous based generation capacity so as to make the power system reliable. This type of response can be introduced by control schemes developed. This report provides a literature review of the frequency control basics and controller schemes used. And also it provides an overview of the basic concepts related to the effects of wind generation on frequency behavior of the power system network. Introduction Frequency stability and control very much dependent on active power balancing is a major research topic concerned with grid integration of large wind farms. The instability of frequency occurs when power system fails to maintain it within particular limits under normal conditions. Active power imbalance indicates the variations in frequency and consequently the constancy of frequency represents the quality of power supply. Such an imbalance can be......

Words: 3432 - Pages: 14

Power Amplifiers

...Unit 1 Discussion 1. In your own words, explain the different classes of the power amplifiers (Class-A, Class-B, Class-AB and Class-C) and mention where the Q-point is for each one. Also mention about their applications. 2. What is the difference between a 200W stereo amplifier and a 100 W stereo amplifier in dB? 3. What is dBm? Where is it commonly used? 4. A utility company is interested in purchasing a Public Address system (audio frequencies). Because the company works near high-voltage power lines, where 60Hz interference is common, they have requested that the PA system be designed to minimize pickup from the power lines. What would be the best way to minimize this interference?Be sure to make your original post EARLY in the week. Return often throughout the week to reply and respond to your classmates.Instructions: To post to the discussion, click on the "Add a new discussion topic" button below. In the Subject line, enter a descriptive title for your post. You may copy/paste the text of your assignment into the Message text area. Alternatively, you can choose to type directly into the Message area. When you choose this option, please double check to make sure you have spelled everything correctly. Once you have finished with the message area, please press the "Post to forum" button. This will complete the submission process for your first post to your discussion assignment.To respond to a classmate's post, click on their discussion post title. Click on...

Words: 273 - Pages: 2

Ac Operational Amplifiers

...E663 Laboratory session 8: AC Operational Amplifiers Agrim Ganti University College London 5th December 2008 ABSTRACT The report is written on an investigation which comprises of testing three operational amplifier circuits with AC signals. The three types of circuit include the integrator, the AC inverting amplifier and the AC non-inverting amplifier circuit. The integrator circuit was tested with a square-wave and a sinusoidal wave input signal at 1kHz frequency. The results showed that the square-wave input signal produced a triangular wave output whereas the sinusoidal input produced a sinusoidal output signal with a positive 90 degree phase shift. Both output signals were showed to be the integral of their relative input signals. The output voltage gain of the AC inverting and the AC non-inverting amplifier circuits were tested with a frequency range of 100Hz to 10kHz. The results were plotted on a logarithmic scaled graph which showed that both amplifiers acted like high-pass filters, each amplifier achieving its maximum gain set by the specification at higher frequencies nearer to 10kHz. The only difference between the two op-amps was that the AC inverting amplifier achieved negative gain in comparison to the positive gain achieved by the AC non-inverting amplifier. For further investigation, the frequency was increased above 10kHz for the AC inverting amplifier circuit which showed a linear fall in gain, which was explained by the theory of slew rate......

Words: 7526 - Pages: 31

Frequency Distribution

...Frequency Distributions & Sampling 1. Is the lager sampling changing anything? 2. Is your mean increasing or decreasing? 3. Do you think your current data is enough to paint a picture? The increasing of collected data quite fortunately allowed the majority of the data to remain the same. It increased the total drive time 392 total minutes of drive time. However, mean and mode still remained the same with an average of 24.5 minutes (mean) and a reoccurring number of number 22 (mode) which repeats a total of 4 times. Based on the consistency of my data I do believe I have enough information to create an accurate assessment of the collected data. Day | Amount of time it takes to drive to work daily | 1 | 27 minutes | 2 | 29 minutes | 3 | 21 minutes | 4 | 24 minutes | 5 | 22 minutes | 6 | 25 minutes | 7 | 28 minutes | 8 | 22 minutes | 9 | 26 minutes | 10 | 23 minutes | 11 | 22 minutes | | Five additional days of data | 12 | 25 minutes | 13 | 23 minutes | 14 | 22 minutes | 15 | 26 Minutes | 16 | 27 Minutes | | | | | x | f | xf | (x-xbar)^2 | (x-xbar)^2*f | 1 | 27 | 27 | 55.443 | 1496.9587 | 2 | 29 | 58 | 41.551 | 1204.9766 | 3 | 21 | 63 | 29.659 | 622.8372 | 4 | 24 | 96 | 19.767 | 474.4060 | 5 | 22 | 110 | 11.875 | 261.2482 | 6 | 25 | 150 | 5.983 | 149.5729 | 7 | 28 | 196 | 2.091 | 58.5456 | 8 | 22 | 176 | 0.199 | 4.3762 | 9 | 26 | 234 | 0.307 | 7.9798 | 10 | 23 | 230 | 2.415 | 55.5431 | 11 |......

Words: 322 - Pages: 2

Filtering and Frequency

...understanding of the Fourier transform and the frequency domain, and how they apply to image enhancement. Background Introduction to the Fourier Transform and the Frequency Domain DFT Smoothing Frequency-Domain Filters Sharpening Frequency-Domain Filters 4.1 Background • Any function that periodically repeats itself can be expressed as the sum of sines and/or cosines of different frequencies, each multiplied by a different coefficient (Fourier series). • Even functions that are not periodic (but whose area under the curve is finite) can be expressed as the integral of sines and/or cosines multiplied by a weighting function (Fourier transform). • The advent of digital computation and the “discovery” of fast Fourier Transform (FFT) algorithm in the late 1950s revolutionized the field of signal processing, and allowed for the first time practical processing and meaningful interpretation of a host of signals of exceptional human and industrial importance. • The frequency domain refers to the plane of the two dimensional discrete Fourier transform of an image. • The purpose of the Fourier transform is to represent a signal as a linear combination of sinusoidal signals of various frequencies. = Any function that periodically repeats itself can be expressed as a sum of sines and cosines of different frequencies each multiplied by a different coefficient – a Fourier series 4.2 Introduction to the Fourier Transform and the Frequency Domain • The one-dimensional......

Words: 3417 - Pages: 14


...Checkpoint in your own words IT/241 Intro to W-Lan technologies FRED HOLMES IV April Sturgess Friday May 4, 2013 What is frequency? Frequency is the number of cycles of a repeating signal. The unit of frequency is measured in hertz. Each hertz is equal to one cycle of an event in seconds. For a frequency to be considered an audio frequency it has to be between 15 Hz and 20000 Hz. A radio frequency will range from 20 kHz to 1 terahertz. A medium for radio frequency will be air and metal. Air will not conduct electricity so the displacement won’t happen. When it comes to infinity value, air will become resistant and only some current flow will go through. Metal is an electricity conductor. This means that the flow will be based on the resistance of metals and the components with in the metal. What is analogue modulation? Is the information which is applied to the carrier signal. This is usually with radio signals. The amplitude modulation will change any frequency of the signal. Frequency Modulation is the frequency of the Carrier can wave at the input signal with the level use multiple methods When comparing the modulation we can show that both use the same method. The only difference is that digit. While this process is going on the digital modulation can use multiple times. Digital will also apply filters to......

Words: 264 - Pages: 2

Radio Frequency (Rf) Interference Analysis and Optimization

...Radio Frequency (RF) Interference Analysis and Optimization By Farhana Jahan ID: 061-19-342 Md. Rafiqul Islam ID: 061-19-370 Md. Mohibul Hasan ID: 061-19-373 A thesis report presented in partial fulfillment of requirements for the degree of Bachelor of Science in Electronics and Telecommunication Engineering Supervised by Mohammed Humayun Manager (Network Department) ADVANCED DATA NETWORKS SYSTEM LIMITED Red Crescent Concord Tower (19th floor) 17, Mohakhali Commercial Area, Dhaka-1212 Department of Electronics and Telecommunication Engineering DAFFODIL INTERNATIONAL UNIVERSITY October 2009 i APPROVAL PAGE This thesis titled „Radio Frequency (RF) Interference Analysis and Optimization‟, Submitted by Md. Rafiqul Islam, Md. Mohibul Hasan and Farhana Jahan to the Department of Electronics and Telecommunication Engineering, Daffodil International University, has been accepted as satisfactory for the partial fulfillment of the requirement for the degree of Bachelor of Science in Electronics and Telecommunication Engineering and approved as to its style and contents. The presentation was held on 19th October 2009. Board of Examiners Mr. Golam Mowla Choudhury Professor and Head Department of Electronics and Telecommunication Engineering Daffodil International University ---------------------(Chairman) Dr. M. Lutfar Rahman Dean & Professor Faculty of Science and Information Technology Daffodil International University ---------------------(Member) A K M......

Words: 18928 - Pages: 76

Analouge Radio Frequency

...Introduction: A network which freely passes desired band of frequencies while almost suppress other band of frequencies is called filter. This type of network was first examined by G.A Campbell and O.J Zobel of bell telephone laboratories. Filters are networks that process signals in a frequency-dependent manner. The basic concept of a filter can be explained by examining the frequency dependent nature of the impedance of capacitors and inductors. In filters, attenuation changes suddenly as the frequency is varied. Thus, filters have ability to discriminate between signals which differ in frequency. Filters are widely employed in signal processing and communication systems in applications such as channel equalization, noise reduction, radar, audio processing, video processing, biomedical signal processing, and analysis of economic and financial data. For example in a radio receiver band-pass filters, or tuners, are used to extract the signals from a radio channel. In an audio graphic equalizer the input signal is filtered into a number of sub-band signals and the gain for each sub-band can be varied manually with a set of controls to change the perceived audio sensation. In a Dolby system pre-filtering and post filtering are used to minimize the effect of noise. In hi-fi audio a compensating filter may be included in the preamplifier to compensate for the non-ideal frequency-response characteristics of the speakers. Filters are also used to create perceptual audio-visual......

Words: 2561 - Pages: 11

Unit 3 Assignment 1: Frequency Modulation

...Unit 3 Assignment 1: Frequency Modulation Ch. 5 (pp 253-255 1, 2, 6, 7, 8, 12, 14, 16, 17, 20, 26, 28, 33, 35, 48 Section 5-1 1. Define angle modulation and list its subcategories. Answer: Angle modulation is defined as modulation where the angle of a sine-wave carrier is varied from its reference value. The subcategories are Phase modulation and Frequency modulation. 2. What is the difference between frequency and phase modulation? Answer: The difference between frequency and phase modulation is; Frequency modulation is where the instantaneous frequency of a carrier is caused to vary by an amount proportional to the modulating signal amplitude, Phase modulation is the same but it is where the phase angle of a carrier is caused to depart from its reference value. Section 5-2 6. Define deviation constant. Answer: Deviation Constant is defined as in units of kHz/V. and it’s how much the carrier frequency will deviate for a given modulating input voltage level. 7. A 50-mV sinusoid, at a frequency of 1 kHz, is applied to a capacitor microphone FM generator. If the deviation constant for the capacitor microphone FM generator is 500 Hz/20 mV, determine: (a) The total frequency deviation. (±1.25 kHz) Answer: 50mV x (500 Hz)/(20 mV)= ±1.25 kHz (b) The rate at which the carrier frequency is being deviated. (1 kHz) Answer: The rate at which the carrier frequency is being deviated is ±1.25 kHz at a rate of 1 kHz. 8. Explain how the intelligence signal modulates...

Words: 1325 - Pages: 6

Astable Multivibrators and Amplifiers

...At the beginning of this quarter, we decided to buy a circuit we could build on our own to practice soldering. We bought the flashing LED sweetheart and while building the circuit we realized that it was an astable multivibrator. An Astable multivibrator switches between two states without stopping by using their output signal to recharge the input signal. This works because of a transistor or amplifier that amplifies the output signal and forwards the charge to the input. In most astable multivibrators there are two capacitors in between the input and output terminals, one is fully charged and the other is fully discharged, which allows voltage levels to be stepped up or down. As the charged capacitor discharges and transfers its energy to the second capacitor, the second capacitor recharges and prepares to discharge the energy back to the input. This allows the astable multivibrator to switch between a high state and a low state on a continuous cycle. Astable multivibrators are used in radio equipment to receive and transmit radio signals. Astable multivibrators are also used in Morse code generators, timers, and systems that require a square wave, including television broadcasts and analog circuits. Some advantages of astable multivibrators is that they continuously switch between one state and another. This allows them to power themselves and perform work at a fast rate without influence from any outside forces or events. Astable multivibrators are also inexpensive to......

Words: 926 - Pages: 4

Field Effect Transistor Amplifier

...Transistor (FET) amplifier circuits. Firstly, is the procedure part which includes the design and results of whole task of the experiments and analyses the results of the task. the design and results part includes the tables, figures, equations and some comments about the results and it is divided into two tasks. The analyses the results part of the report investigate some errors of it. After that, the report is concluded through discussing the main achievements and the recommendations if found. The measured and simulated results are presented in this report along with a discussion of how the circuit parameters were determined. 1. Procedure In this laboratory session, we dealt with another type of transistors known as the Field Effect Transistors (FET). Indeed, these transistors employ one type of charges, i.e. either electrons or holes depending on the channel polarity and hence the name unipolar devices arise. FETs are voltage controlled devices that have a very high input impedance and low noise level. Task 1: Frequency response of FET amplifier Task 2: Frequency response of Common-Drain FET amplifier: In this task, we dealt with the frequency response of Common-Drain FET amplifier shown in Figure 1 below. A dc voltage of the value 15 V is applied to the drain while the Vgg is removed. In addition, a constant 200mVpp input voltage is applied. Then, the input frequency is changed......

Words: 1032 - Pages: 5

Frequency and Uses

...Frequency and Uses David Pearlmutter IT/235 June-Sunday,2015 Frank Futyma Frequency and Uses Photography whether that being out sourced or in house is an important aspect in advertising for any type of business. These options will contain both pros and cons when you are going to discuss the financial and beneficial aspects for the company effectively reaching the target audience. The convenience of doing in house photography and that of the scheduling of the out sourced professional photographers will prove interesting and vital in details. Also the idea of the many uses of this imagery and accessibility can be a factor in the merchandising, advertising and the business fortitude. The convenience associated with that of having complete access to the utilization of developing an in house photography staff that is far superior to that of any other option. The fact is that the company can offer any schedule constraint to the imagery team and allow that task to be completed within the time sensitive request. Employees are more likely to understand the needs of the company when given the task of providing merchandising imagery. The company also has access to these images because the photographs are the sole property of the company. Alternatively, out sourced photography also has many beneficial aspects in regards to advertising, this is especially true when discussing the professionalism associated with the character, products, and services provided by a person or a......

Words: 724 - Pages: 3

Frequency Response

...Introduction This lab deals with the concept of frequency response. During steady state, sinusoidal inputs to a linear system will generate sinusoidal responses of the same frequency, but of different amplitude and phase angles. This is due to a time lag between input and output generated. These differences are functions of frequency. In this experiment, the frequency response test is used to identify the (linear) dynamics of a plant. It is performed by inputting a sinusoidal signal and comparing it with the sinusoidal output. Objective of Experiment 1. To perform a frequency response test on an aircraft electro-hydraulic servo-actuator, hence determining the phase and gain margins of the servo-actuator. 2. To verify that increasing the gain by the gain margin causes instability. Equipment and Apparatus 1. Electro-hydraulic servo-actuator 2. Amplifier unit 3. Oscilloscope (CRO) 4. Function generator (FG) 5. Hydraulic power supply (outside laboratory) Background of Experiment This experiment utilizes a servo mechanism which is an automatic device that takes advantage of error-sensing feedback to correct and amplify the signal. The servo system comprises of a servo-actuator and an amplifier unit. In aircrafts, a similar system is used to convert electrical autopilot voltage outputs into a proportional mechanical movement. The mechanical movement is linked to the control rods, which controls the equipment the pilot uses to move the......

Words: 3296 - Pages: 14


...Operational amplifiers-OPAMP Ideal- characteristics Real- you buy LM741C Characteristics 1. AOL- Open loop gain – infinite (typical value 1000000 for LM741) 2. input resistance Rin=infinite(2Mohms) 3. input current = 0 4. Rout=0(small 75ohms) 5. AOLdoes not change with the frequency of the input signal- the voltage gain is constant VCVS-voltage controlled voltage source Negative feedback Lowers the voltage gain, and also makes it constant for a bigger range frequency INVERTING AMPLIFIER USING AN OP AMP Positive Vin negative Vout Negative Vinpositive Vout (1800 out of phase) Op amp with negative feedback will have ACL(closed-loop gain)—the new circuit (op amp +Rf+R)has a new gain which is called closed-loop gain Acl=-Rf/R Vout=-(Rf*Vin)/R; Rf>R The gain of the inverting depends on two resistors, Rf and R,Rf is connected between the output pin and inverting pin and Rf must be grater than the value of R. To have an amplifier, R is connected between the input signal and the inverting pin. The negative sign in the formula for the closed loop gain means that the input signal and the ouput signal are 180 out of phase, meaning that +inputs produce-output and vice versa. The output voltage cannot go above Vcc and Vee . The output wave is clip off wave’ The output wave will be a saw wave(triangular), if the gain is too much big. IR=IF+Iin (Iin=0) IR=IF Ir=Vin/R If=Vout/ Rf Vout/Vin=Rf/R To find the formula for ACL of inverting op amp amplifiers: ......

Words: 330 - Pages: 2