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Easy-to-Use, Ultra-Tiny, Differential, 16-Bit Delta Sigma ADC With I2C Interface
The LTC2453 is an ultra-tiny, fully differential, 16-bit, analog-to-digital converter. The LTC2453 uses a single 2.7V to 5.5V supply and communicates through an I2C i
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用fpga实现的DA转换器，有说明和源码，VDHL文件。
A PLD Based Delta-Sigma DAC
Delta-Sigma modulation is the simple, yet powerful,
technique responsible for the extraordinary
performance and low cost of today s audio CD
players. The simplest Delta-Sigma DAC cons
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Modeling Sigma-Delta Modulator Non-Idealities in SIMULINK
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Improved modeling of sigma-delta modulator non-idealities in Simulink
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The intention of the work is to analyze the feasibility of using a Sigma-Delta modulator based analog-to-digital converter for true random number generation, whereas the noise source is integrated into modulator’s loop as well as
design a Sigma-Del
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In this paper, we propose and study an adaptive delta modulator
that has improved SNR performance and better robustness
in tracking highly varying signals. The step-size
adaptation used in this modulator is based on information
about the abso
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A PLD Based Delta-Sigma DAC
Delta-Sigma modulation is the simple, yet powerful,
technique responsible for the extraordinary
performance and low cost of today s audio CD
players. The simplest Delta-Sigma DAC consists of a
Delta-Sigma modulat
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delta sigma modulator
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通过MATLAB对过采样sigma-delta调制器进行仿真的设计方案，采用多级级联结构，有效减少运算量和硬件开销。-By MATLAB on the over-sampling sigma-delta modulator design simulation, using multi-stage cascade structure, effectively reduce the computational complexity and hardware overhead.
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Compute the output of a general delta-sigma modulator with input u,
a structure described by ABCD, an initial state x0 (default zero) and
a quantizer with a number of levels specified by nlev.
Multiple quantizers are implied by making nlev
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Determine the SNR for a quadrature delta-sigma modulator using simulations.
The modulator is described by a noise transfer function (ntf)
and the number of quantizer levels (nlev).
The ntf/stf may be given in ABCD form.
The band of intere
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Determine the SNR for a delta-sigma modulator by using simulations.
The modulator is described by a noise transfer function (ntf)
and the number of quantizer levels (nlev).
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generation of wideband high dynamic range analog signal for area-efficient MADBIST, especially for the on-chip testing of wireless communication IF digitizing sigma–delta modulator chip. Via increasing the order of the one-bit bandpass sigma–delta m
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AD中用于调制解调的delta sigma一阶调制器-AD used for modulation and demodulation of the first order delta sigma modulator
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ppt of my project on delta sigma modulator
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simulink模拟的二阶sigma delta调制器 可以提高传输速率 中间用到了半带滤波器和FIR滤波器CIC滤波器 进行过采样-Simulink simulation of second order sigma delta modulator can improve the transmission rate use among the half took filter and FIR filter CIC filter sample
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Verilog source code by James Patchell:
- Delta Sigma Modulator for doing Digital->Analog Conversion
- Aquad-bquad phase detector
- Uart Reciever
- Uart Transmitter
- One shot
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提供一个matlab程序，功能是将被Delta-Sigma调制器调制过的信号解调出来。-Provide a matlab procedures, functions will be Delta-Sigma modulator modulated signal demodulated.
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上传一个将正弦函数通过Delta-Sigma调节器转换成正负一的脉冲信号。并分别激励同一系统，得到良好的一致输出-Upload a sinusoidal function by Delta-Sigma modulator converts a signal of positive and negative pulse. And separately driven in the same system, to obtain a good coincidence output
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Delta-sigma modulator based A/D conversion without oversamplingDelta-sigma modulator based A/D conversion without oversampling-Delta-sigma modulator based A/D conversion without oversamplingDelta-sigma modulator based A/D conversion
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