A low power 5 GHz direct digital synthesizer
... The conventional DDS architecture utilizes a ROM look-up table to convert the accumulated phase word into sine/cosine words that are further used to drive a linear binary weighted DAC. The speed bottleneck of a conventional DDS architecture lies upon the large look-up table with multi-level decoders ...
... The conventional DDS architecture utilizes a ROM look-up table to convert the accumulated phase word into sine/cosine words that are further used to drive a linear binary weighted DAC. The speed bottleneck of a conventional DDS architecture lies upon the large look-up table with multi-level decoders ...
Time-Base Oscillator for RTC ICs
... Table 2 represents typical data taken with a bq3285 using a KDS crystal with a CL = 12.5pF and parallel trim capacitors. The leads were bent up, directly connecting the crystal to them, so a 2-3pF capacitor from both the X1, X2 pins to ground were added to simulate trace capacitances. The part was m ...
... Table 2 represents typical data taken with a bq3285 using a KDS crystal with a CL = 12.5pF and parallel trim capacitors. The leads were bent up, directly connecting the crystal to them, so a 2-3pF capacitor from both the X1, X2 pins to ground were added to simulate trace capacitances. The part was m ...
A Survey on Instrumentation Amplifiers used for Biomedical
... are discussed in this work.The comparison for existing bio amplifers in terms of CMRR,voltage gain ,noise level and bandwith are carried out in this paper. KEYWORDS: Amplifier, Bio signals, CMRR, voltage gain, low power. I.INTRODUCTION Bio-signals such as EEG, ECG, pulse rate, heartbeat rate are wea ...
... are discussed in this work.The comparison for existing bio amplifers in terms of CMRR,voltage gain ,noise level and bandwith are carried out in this paper. KEYWORDS: Amplifier, Bio signals, CMRR, voltage gain, low power. I.INTRODUCTION Bio-signals such as EEG, ECG, pulse rate, heartbeat rate are wea ...
a Engineer To Engineer Note EE-168
... C3 is only required for blocking DC current that would otherwise load the output of the oscillator. Its value is not critical and a value of 1nF NP0 should be satisfactory. The inductor, L1, is chosen to resonate with C2 and the stray output capacitance at a frequency fR ≈ ⅔ of the 3rd OT frequency, ...
... C3 is only required for blocking DC current that would otherwise load the output of the oscillator. Its value is not critical and a value of 1nF NP0 should be satisfactory. The inductor, L1, is chosen to resonate with C2 and the stray output capacitance at a frequency fR ≈ ⅔ of the 3rd OT frequency, ...
Op-Amp Voltage Amplifiers Word Document
... There are two inputs; the non-inverting input ‘+’ and the inverting input ‘-‘. There is one output, labelled VOUT. There are two power supply connections labelled +V and –V, since an op-amp requires a dual rail power supply. This provides both a positive and a negative voltage (e.g. ±12V) to allow t ...
... There are two inputs; the non-inverting input ‘+’ and the inverting input ‘-‘. There is one output, labelled VOUT. There are two power supply connections labelled +V and –V, since an op-amp requires a dual rail power supply. This provides both a positive and a negative voltage (e.g. ±12V) to allow t ...
Institutionen för systemteknik Department of Electrical Engineering circuit optimization tool.
... Analog Dimensions is an optimization-based analog design automation tool developed by two former Ph.D. students at Linköping University. It started as a research project at the department of Electronic Systems in the year 2000. Since 2006, the software is developed by AnSyn AB. Analog Dimensions is ...
... Analog Dimensions is an optimization-based analog design automation tool developed by two former Ph.D. students at Linköping University. It started as a research project at the department of Electronic Systems in the year 2000. Since 2006, the software is developed by AnSyn AB. Analog Dimensions is ...
MAX9995 Dual, SiGe, High-Linearity, 1700MHz to 2700MHz Downconversion Mixer with LO Buffer/Switch
... Note 1: Based on junction temperature TJ = TC + (θJC x VCC x ICC). This formula can be used when the temperature of the exposed pad is known while the device is soldered down to a PCB. See the Applications Information section for details. The junction temperature must not exceed +150°C. Note 2: TC i ...
... Note 1: Based on junction temperature TJ = TC + (θJC x VCC x ICC). This formula can be used when the temperature of the exposed pad is known while the device is soldered down to a PCB. See the Applications Information section for details. The junction temperature must not exceed +150°C. Note 2: TC i ...
Power-Supply Design for High-Speed ADCs
... data sheet lists a PSRR of 25 dB, while the ADS5483’s PSRR is listed as 60 dB on the analog inputsupply rail. The ADS6148EVM comes with an onboard power supply consisting of a switching regulator (TPS5420) and a lownoise, 5-V-output LDO (TPS79501), followed by low-noise LDOs for the 3.3-V and 1.8-V ...
... data sheet lists a PSRR of 25 dB, while the ADS5483’s PSRR is listed as 60 dB on the analog inputsupply rail. The ADS6148EVM comes with an onboard power supply consisting of a switching regulator (TPS5420) and a lownoise, 5-V-output LDO (TPS79501), followed by low-noise LDOs for the 3.3-V and 1.8-V ...
Lesson -13:
... The three phase fully controlled bridge converter has been probably the most widely used power electronic converter in the medium to high power applications. Three phase circuits are preferable when large power is involved. The controlled rectifier can provide controllable out put dc voltage in a si ...
... The three phase fully controlled bridge converter has been probably the most widely used power electronic converter in the medium to high power applications. Three phase circuits are preferable when large power is involved. The controlled rectifier can provide controllable out put dc voltage in a si ...
OPA699: Wideband, High Gain Voltage Limiting Amplifier (Rev. B)
... (6) I VH (VH bias current) is negative, and IVL (VL bias current) is positive, under these conditions. See Note 3 and Figures 2 and 12. (7) Limiter feedthrough is the ratio of the output magnitude to the sinewave added to V H (or V L) when VIN = 0. (8) VH slew rate conditions are: VIN = VCM +0.4V, G ...
... (6) I VH (VH bias current) is negative, and IVL (VL bias current) is positive, under these conditions. See Note 3 and Figures 2 and 12. (7) Limiter feedthrough is the ratio of the output magnitude to the sinewave added to V H (or V L) when VIN = 0. (8) VH slew rate conditions are: VIN = VCM +0.4V, G ...
MICROWAVE MONOLITHIC POWER AMPLIFIER DESIGN
... cells used in the circuit can be designed for optimum electrical and thermal performance. One is not restricted to a particular set of available transistor cell sizes, as is the case with a discrete amplifier. For MMIC power amplifiers that incorporate multiple gain stages, the impedance levels betw ...
... cells used in the circuit can be designed for optimum electrical and thermal performance. One is not restricted to a particular set of available transistor cell sizes, as is the case with a discrete amplifier. For MMIC power amplifiers that incorporate multiple gain stages, the impedance levels betw ...
Frequency Preference Response to Oscillatory Inputs in Two
... These mechanisms can be addressed from two different, but complementary perspectives: biophysical and dynamic. The former focuses on the role of the ionic currents and their biophysical properties in shaping the neuron’s voltage response, and it has been discussed in terms of the so-called resonant ...
... These mechanisms can be addressed from two different, but complementary perspectives: biophysical and dynamic. The former focuses on the role of the ionic currents and their biophysical properties in shaping the neuron’s voltage response, and it has been discussed in terms of the so-called resonant ...
LTC6948 - Linear Technology
... Low Noise Fractional-N PLL with Integrated VCO n No ∆-∑ Modulator Spurs n 18-Bit Fractional Denominator n –226 dBc/Hz Normalized In-Band Phase Noise Floor n –274 dBc/Hz Normalized In-Band 1/f Noise n –157 dBc/Hz Wideband Output Phase Noise Floor n Excellent Integer Boundary Spurious Performance ...
... Low Noise Fractional-N PLL with Integrated VCO n No ∆-∑ Modulator Spurs n 18-Bit Fractional Denominator n –226 dBc/Hz Normalized In-Band Phase Noise Floor n –274 dBc/Hz Normalized In-Band 1/f Noise n –157 dBc/Hz Wideband Output Phase Noise Floor n Excellent Integer Boundary Spurious Performance ...
Fractional/Integer-N PLL Basics
... The problems associated with operating a wireless communications system have become especially acute in the last few years with the advance of cellular telephony and the emergence of wireless data networks. Because there are more users now, most operating at progressively higher data rates, both int ...
... The problems associated with operating a wireless communications system have become especially acute in the last few years with the advance of cellular telephony and the emergence of wireless data networks. Because there are more users now, most operating at progressively higher data rates, both int ...
Active-Amplifier-Array Diagnostics Using High
... 80-MHz repetition rate of the laser [the local oscillator (LO)] takes place in the electrooptic crystal and is used to obtain an IF that is fed into an RF lock-in amplifier [11], [12]. Using phase-locked-loop electronics in the stabilized laser system, one is able to synchronize the continuous-wave ...
... 80-MHz repetition rate of the laser [the local oscillator (LO)] takes place in the electrooptic crystal and is used to obtain an IF that is fed into an RF lock-in amplifier [11], [12]. Using phase-locked-loop electronics in the stabilized laser system, one is able to synchronize the continuous-wave ...
Bode plot
In electrical engineering and control theory, a Bode plot /ˈboʊdi/ is a graph of the frequency response of a system. It is usually a combination of a Bode magnitude plot, expressing the magnitude of the frequency response, and a Bode phase plot, expressing the phase shift. Both quantities are plotted against a horizontal axis proportional to the logarithm of frequency.