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Recent content by roxy1001

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    Any ADC for 100Ksps to 10Msps ?

    I have to sample 50kHz signals having BW of ~30Khz (35KHz-65KHz). For this purpose I'm looking for ADC's with 1. Variable clock rate/flexible clock input 2. Dual channel (14-bit) 3. Sampling rate ~100KSPS<MSPS<~10MSPS range. Can you please suggest me any better ADC devices which are similar...
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    Car Deck 50Watt x 4 What does it indicate ?

    Thanks for the reply. Yes ! Quality I know that... sorry I didn't understand this My question is if I tie same quality speakers of different wattage (470Watt /400Watt) to 50Watt output channel what difference can be seen ? OR may be it would never be driven to 470Watts anyway until I use...
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    Car Deck 50Watt x 4 What does it indicate ?

    Car Deck 50Watt x 4 | What does it mean ? I installed Pioneer Car deck which has 50W x 4 Channel output. With Rear speakers of 470W & Front speakers of 25W each. Retailer showed me 470Watt and 400Watt speakers saying that 470Watt would also give a decent bass (Inbuild in speaker) but better...
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    Matlab support for ADI DSPs ?

    Im impelementing FFT FIR IFFT on DSP.. Before selecting DSP I need to know which companies provide extended library and compatibility with MATLAB Simulink. ? ADI or TI ?
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    How to determine SNR

    How digital engineers decide the tolerable Signal To Noise Ratio for their design? If I'm using ADC with input of 220v converted into 4vp-p range for ADC. How should I calculate the tolerable SNR. Any references would be helpful. Im using ADC samples for DSP based phase measurement. What impact...
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    Direct Digital Synthesizer Output Frequency

    Thanks for the reply. Can you suggest me how? Any reference would be helpful. :)
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    Orthogonal Cross Correlation

    Guys please Help me ..ASAP :|
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    Direct Digital Synthesizer Output Frequency

    I want to design a frequency synthesizer using DDS Output frequency should be variable between 45KHz - 55KHz. with minimum frequency step of ~10Hz or less. Is it possible to design such system using DDS ? Or what else can I use? Please reply ASAP. :-| Thank you in advance !:-)
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    Orthogonal Cross Correlation

    I want to use cross correlation technique to obtain relative phase difference between Current & Voltage waveform of the same frequency. I was reading following technique where U1(k) which is the discrete voltage across the piezo-transducer and I(k) is the discrete current. U2(k) is obtained by...
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    Half Bridge Circuit Queries

    I'm analyzing this Half bridge Buck regulator circuit.. I wonder why these components (encircled) are used ? 1- Shottkey diode 2- I guess thats ferrite core inductor forming choke Filter .. Correct me if I'm wrong 3- Common mode choke.. Why secondary of choke is connected to the ground ...
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    Common Mode Choke function ?

    I recently came across the term common mode choke. I read about its basic functioning that current flowing through both winding produces equal and opposite flux thus cancelling out the RF flux thus reducing EMI,RFI. My question may sound silly one but its very important for me to know. What...
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    Half bridge Driver IC

    I'm designing DC/DC converter for low power application of up to 50 Watt using MOSFET half bridge configuration. MOSFET will be supplied with 325V (dc) which I've to convert into 1.5v(min)-50 volts(max) at isolation step down transformer's secondary. Please suggest me gate driver ICs for...
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    I want any 8051 programmer

    Re: 8051 usb programmer hey check this out i have uploaded circuit for 8051 usb programmer 8051usbprogrammer.blogspot.com .... ... .. . The power supply and communication both are provided by the usb port itself....

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