A receiver architecture for devices in wireless body area networks
... deciding the radio link parameters. It is also important to take interference in the frequency band into account, so that a receiver with adequate selectivity and linearity can be employed. To minimize the size of the radio transceiver it should be realized as a single chip in nanometer CMOS technol ...
... deciding the radio link parameters. It is also important to take interference in the frequency band into account, so that a receiver with adequate selectivity and linearity can be employed. To minimize the size of the radio transceiver it should be realized as a single chip in nanometer CMOS technol ...
View Spec PDF
... Transducers, on the other hand, are not designed to measure electrical activity directly and usually involve simpler connections. The transducers discussed in this manual translate physical changes (in temperature, for instance) into electrical signals. Connections for individual transducers are dis ...
... Transducers, on the other hand, are not designed to measure electrical activity directly and usually involve simpler connections. The transducers discussed in this manual translate physical changes (in temperature, for instance) into electrical signals. Connections for individual transducers are dis ...
Amplitude Modulation Transmitter Design
... AM Transmitter Floorplan: Design Goals Given the limited timeframe, we are providing you with the individual circuits that you need to design and construct. Fig. 1 shows the floorplan for the AM Transmitter. It consists of a Balanced Modulator which multiplies an audio frequency (20Hz to ~15kHz) sig ...
... AM Transmitter Floorplan: Design Goals Given the limited timeframe, we are providing you with the individual circuits that you need to design and construct. Fig. 1 shows the floorplan for the AM Transmitter. It consists of a Balanced Modulator which multiplies an audio frequency (20Hz to ~15kHz) sig ...
Supplementary Materials
... substitute the value of ΔV1 (5 V), ΔV3 (3.6 V), Cvar (30 pF) and Cprob (8 pF), the estimated Cx is 3.6 pF. When the probe is removed (Cprob equals 0), use the estimated Cx and equation 1, the calculated real step output at V3 is 4.5 V, corresponding to the case Cvar is 30 pF. When Cvar is 6.5 pF thi ...
... substitute the value of ΔV1 (5 V), ΔV3 (3.6 V), Cvar (30 pF) and Cprob (8 pF), the estimated Cx is 3.6 pF. When the probe is removed (Cprob equals 0), use the estimated Cx and equation 1, the calculated real step output at V3 is 4.5 V, corresponding to the case Cvar is 30 pF. When Cvar is 6.5 pF thi ...
a new principle of digital fractional frequency synthesizer
... The frequency synthesizers form, which is the basic of most radio system designs and their performance is often key to the overall operation. They are also an important building block in almost all digital and mixed signal integrated circuits as a clock multiplier. Apart from the usual integer-N PLL ...
... The frequency synthesizers form, which is the basic of most radio system designs and their performance is often key to the overall operation. They are also an important building block in almost all digital and mixed signal integrated circuits as a clock multiplier. Apart from the usual integer-N PLL ...
Lab 10 - ece.unm.edu
... 1. Construct the CC amplifier of Figure 10-1. Remember RS is installed in addition to the internal 50 resistance of the function generator. Verify the amplifier operation by measuring the Q-point and midband voltage gain. Monitor the output on the oscilloscope to make sure the waveform is not clippe ...
... 1. Construct the CC amplifier of Figure 10-1. Remember RS is installed in addition to the internal 50 resistance of the function generator. Verify the amplifier operation by measuring the Q-point and midband voltage gain. Monitor the output on the oscilloscope to make sure the waveform is not clippe ...
EXP 4
... Measure the output Vo for the frequency range 1-50KHz. Determine the cut-off frequency. 2. Now change R0 to 5.1 KΩ. Measure the output Vo for the frequency range 1-50KHz. Determine the cut-off frequency. Plot Gain (dB) vs. frequency in both cases. 3. Adjust the capacitances to different values. Say ...
... Measure the output Vo for the frequency range 1-50KHz. Determine the cut-off frequency. 2. Now change R0 to 5.1 KΩ. Measure the output Vo for the frequency range 1-50KHz. Determine the cut-off frequency. Plot Gain (dB) vs. frequency in both cases. 3. Adjust the capacitances to different values. Say ...
Lab 2 Applications of the 555 Timer
... In section C we initially measured the photoresistor’s resistance value in ambient light using an EXCEL XL830L multimeter that measured a resistance value of 336Ω in ambient light at 8:41pm in the electronics lab. It required a few seconds to stabilize its value depending on any movement of my hand ...
... In section C we initially measured the photoresistor’s resistance value in ambient light using an EXCEL XL830L multimeter that measured a resistance value of 336Ω in ambient light at 8:41pm in the electronics lab. It required a few seconds to stabilize its value depending on any movement of my hand ...
Capacitor Self
... These questions deal with the non-idealities of the LM 741 op-amp. 2. Why is the load resistor (R L) of the LM 741 variable gain amplifier set at 1 kΩ? Calculate the max. output voltage swing if RL = 200 Ω. 3. The LM 741 is connected to a DC source of +12 V with RL = 1 kΩ. What is the maximum swing ...
... These questions deal with the non-idealities of the LM 741 op-amp. 2. Why is the load resistor (R L) of the LM 741 variable gain amplifier set at 1 kΩ? Calculate the max. output voltage swing if RL = 200 Ω. 3. The LM 741 is connected to a DC source of +12 V with RL = 1 kΩ. What is the maximum swing ...
Fourier Transforms - Leiden Observatory
... done, rather crudely, by inserting prism/grating hardware before the correlator. In digital radio systems this can be done by inserting variable (multiple) delay lines, so that the correlation is measured at a range of delays. The correlation as a function of frequency can be recovered by an additi ...
... done, rather crudely, by inserting prism/grating hardware before the correlator. In digital radio systems this can be done by inserting variable (multiple) delay lines, so that the correlation is measured at a range of delays. The correlation as a function of frequency can be recovered by an additi ...
A Novel Switched Capacitor Frequency Tuning Technique
... signal at the SC integrator output exhibits a large variation in every clock period, which prevents it from being directly applied to control the GM value of the transconductors. In practice, the integrator output has to be low-pass filtered both, to provide a stable control signal, and to stabilize ...
... signal at the SC integrator output exhibits a large variation in every clock period, which prevents it from being directly applied to control the GM value of the transconductors. In practice, the integrator output has to be low-pass filtered both, to provide a stable control signal, and to stabilize ...
EE 233 Circuit Theory Lab 3: Simple Filters
... 2. Use SPICE transient analysis to simulate the circuit in the time domain using a sine wave input with an amplitude of 100 mV and a frequency of 10 kHz, with capacitor and the resistor you chose in 3.1 item 2. From the SPICE output plot of the input and output waveforms, confirm that this circuit i ...
... 2. Use SPICE transient analysis to simulate the circuit in the time domain using a sine wave input with an amplitude of 100 mV and a frequency of 10 kHz, with capacitor and the resistor you chose in 3.1 item 2. From the SPICE output plot of the input and output waveforms, confirm that this circuit i ...
JFET Single Stage Amplifier Phys 3610/6610 Lab 21 Student: TA:
... Task 2: Evaluate what will happen if a 1 MΩ resistor is inserted between your amplifier input and your 25 mV, 1 kHz signal source. Document your prediction and then go ahead and verify it experimentally. Document and interpret your experimental result. Task 3: Modify the circuit of task 1 to use the ...
... Task 2: Evaluate what will happen if a 1 MΩ resistor is inserted between your amplifier input and your 25 mV, 1 kHz signal source. Document your prediction and then go ahead and verify it experimentally. Document and interpret your experimental result. Task 3: Modify the circuit of task 1 to use the ...
Amateur Extra Licensing Class
... when the repeaters are in close proximity and the signals mix in one or both transmitter final amplifiers. Nonlinear circuits or devices cause intermodulation in an electronic circuit. If the signals of two transmitters mix together in one or both of their final amplifiers and unwanted signals at th ...
... when the repeaters are in close proximity and the signals mix in one or both transmitter final amplifiers. Nonlinear circuits or devices cause intermodulation in an electronic circuit. If the signals of two transmitters mix together in one or both of their final amplifiers and unwanted signals at th ...
350W Subwoofer Amplifier
... The hook-up is as simple as connecting the subwoofer output to the left channel RCA input on the plate amp. Fix the phase control to 0 degree and graduate change the xover control on the plate amp from max to min until the blessing between front speaker and sub becomes smooth. Most likely, the sweet ...
... The hook-up is as simple as connecting the subwoofer output to the left channel RCA input on the plate amp. Fix the phase control to 0 degree and graduate change the xover control on the plate amp from max to min until the blessing between front speaker and sub becomes smooth. Most likely, the sweet ...
Superheterodyne receiver
In electronics, a superheterodyne receiver (often shortened to superhet) uses frequency mixing to convert a received signal to a fixed intermediate frequency (IF) which can be more conveniently processed than the original radio carrier frequency. It was invented by US engineer Edwin Armstrong in 1918 during World War I. Virtually all modern radio receivers use the superheterodyne principle. At the cost of an extra frequency converter stage, the superheterodyne receiver provides superior selectivity and sensitivity compared with simpler designs.