AT91SAM9G20 英文数据手册DataSheet 下载
... – 0.9V to 1.1V for VDDBU, VDDCORE, VDDPLL – 1.65 to 3.6V for VDDOSC – 1.65V to 3.6V for VDDIOP (Peripheral I/Os) – 3.0V to 3.6V for VDDUSB – 3.0V to 3.6V VDDANA (Analog-to-digital Converter) – Programmable 1.65V to 1.95V or 3.0V to 3.6V for VDDIOM (Memory I/Os) Available in a 217-ball LFBGA and 247- ...
... – 0.9V to 1.1V for VDDBU, VDDCORE, VDDPLL – 1.65 to 3.6V for VDDOSC – 1.65V to 3.6V for VDDIOP (Peripheral I/Os) – 3.0V to 3.6V for VDDUSB – 3.0V to 3.6V VDDANA (Analog-to-digital Converter) – Programmable 1.65V to 1.95V or 3.0V to 3.6V for VDDIOM (Memory I/Os) Available in a 217-ball LFBGA and 247- ...
MAX1242/MAX1243 +2.7V to +5.25V, Low-Power, 10-Bit Serial ADCs in SO-8 __________________General Description
... Starting a Conversion When power is first applied, and if SHDN is not pulled low, it takes the fully discharged 4.7µF reference bypass capacitor up to 20ms to provide adequate charge for specified accuracy. With an external reference, the internal reset time is 10µs after the power supplies have sta ...
... Starting a Conversion When power is first applied, and if SHDN is not pulled low, it takes the fully discharged 4.7µF reference bypass capacitor up to 20ms to provide adequate charge for specified accuracy. With an external reference, the internal reset time is 10µs after the power supplies have sta ...
Current Tunable Quadrature Oscillator Using Only CCCDBAs and Grounded Capacitors
... The quadrature sinusoidal oscillator plays an essential electronic circuit, because it can produce two sinusoidal outputs of identical frequency but of 90 phase shift, as for example in telecommunications for quadrature mixers and single-sideband generators [1] or for measurement purposes in vector ...
... The quadrature sinusoidal oscillator plays an essential electronic circuit, because it can produce two sinusoidal outputs of identical frequency but of 90 phase shift, as for example in telecommunications for quadrature mixers and single-sideband generators [1] or for measurement purposes in vector ...
PDF
... width to produce much current before the gate closes. The light events, on the other hand, start at approximately the same time (owing to the pulsed nature of the incident light), which is optimized to produce the most avalanche current. In the above, we assume that the light and dark counts have th ...
... width to produce much current before the gate closes. The light events, on the other hand, start at approximately the same time (owing to the pulsed nature of the incident light), which is optimized to produce the most avalanche current. In the above, we assume that the light and dark counts have th ...
- Phi Education
... transmitter, receiver and a control circuit. The working principle of the module is as follows- set the trigger pin high for at least 10 µs, then module automatically sends eight pulses of 40 KHz and detects whether the pulses are echoed or not. The echo pin goes high and remains high till the echo ...
... transmitter, receiver and a control circuit. The working principle of the module is as follows- set the trigger pin high for at least 10 µs, then module automatically sends eight pulses of 40 KHz and detects whether the pulses are echoed or not. The echo pin goes high and remains high till the echo ...
DS1318 Parallel-Interface Elapsed Time Counter General Description Features
... The binary time information is obtained by reading the appropriate register bytes. Registers 02h through 05h contain the time in seconds from an arbitrary reference time determined by the user. Registers 00h and 01h contain the fractional seconds count. A buffered copy of the clock registers (A0–A5) ...
... The binary time information is obtained by reading the appropriate register bytes. Registers 02h through 05h contain the time in seconds from an arbitrary reference time determined by the user. Registers 00h and 01h contain the fractional seconds count. A buffered copy of the clock registers (A0–A5) ...
APPLICATION NOTE - TDA9901 - DIGITAL PROGRAMMABLE GAIN AMPLIFIER
... frequency decoupling of maximum 100nF was added on the middle point of the transformer secondary, to get a good "dynamic" ground. The dynamic analog signal is connected through a 220nF AC coupling to the input RF transformer via a short 50Ω microstrip matched line and a SMA plug-in connector. In fac ...
... frequency decoupling of maximum 100nF was added on the middle point of the transformer secondary, to get a good "dynamic" ground. The dynamic analog signal is connected through a 220nF AC coupling to the input RF transformer via a short 50Ω microstrip matched line and a SMA plug-in connector. In fac ...
EN 1724852
... the ADC with small voltage supply and we have to shrink the size of ADC, for this application we are designing Flash ADC with Clocked Digital Convertor (CDC) configuration which eliminates the resistive network required for generation of internal reference voltage. Types of ADC 1. Sigma Delta ADC. ...
... the ADC with small voltage supply and we have to shrink the size of ADC, for this application we are designing Flash ADC with Clocked Digital Convertor (CDC) configuration which eliminates the resistive network required for generation of internal reference voltage. Types of ADC 1. Sigma Delta ADC. ...
Guidelines on the determination of the sensitivity and calibration of
... A low frequency room temperature current comparator (LFCC or RTCC) is designed for accurate comparison of two AC currents at very low frequency (frequency range 0.2 Hz – 1 Hz). It is used in an AC resistance bridge for establishing and maintenance of the ratio of currents equal to the ratio of the n ...
... A low frequency room temperature current comparator (LFCC or RTCC) is designed for accurate comparison of two AC currents at very low frequency (frequency range 0.2 Hz – 1 Hz). It is used in an AC resistance bridge for establishing and maintenance of the ratio of currents equal to the ratio of the n ...
Digital Pulse Processing in Nuclear Physics
... Fig. 2.3: Block Diagram of the DPP-PHA ..........................................................................................................................................11 Fig. 2.4: Examples of incorrect pole-zero cancellation in the trapezoidal filter........................................ ...
... Fig. 2.3: Block Diagram of the DPP-PHA ..........................................................................................................................................11 Fig. 2.4: Examples of incorrect pole-zero cancellation in the trapezoidal filter........................................ ...
AD2S83: 数据手册DataSheet 下载
... positional accuracy quoted is the worst case error that can occur over the full operating temperature excluding the effects of offset signals at the INTEGRATOR INPUT (which can be trimmed out—see Figure 1), and with the following conditions: input signal amplitudes are within 10% of the nominal; pha ...
... positional accuracy quoted is the worst case error that can occur over the full operating temperature excluding the effects of offset signals at the INTEGRATOR INPUT (which can be trimmed out—see Figure 1), and with the following conditions: input signal amplitudes are within 10% of the nominal; pha ...
ADS822 数据资料 dataSheet 下载
... The circuit provided in Figure 3 illustrates typical connections for the analog input in case the selected amplifier operates on dual supplies. This might be necessary to take full advantage of very low distortion operational amplifiers, like the OPA642. The advantage is that the driving amplifier c ...
... The circuit provided in Figure 3 illustrates typical connections for the analog input in case the selected amplifier operates on dual supplies. This might be necessary to take full advantage of very low distortion operational amplifiers, like the OPA642. The advantage is that the driving amplifier c ...
ADS5270 数据资料 dataSheet 下载
... Analog Input Common-Mode Range Differential Full-Scale Input Voltage Range ...
... Analog Input Common-Mode Range Differential Full-Scale Input Voltage Range ...
A unique, low- voltage, source- coupled J-FET VCO
... leading to small physical dimensions. The values of the specific elements depend on the types of the transistors in use, the frequency range and the bias voltage. The output signal is gathered from the two galvanic- coupled source electrodes via the coupling capacitor (CO). The impedance at this poi ...
... leading to small physical dimensions. The values of the specific elements depend on the types of the transistors in use, the frequency range and the bias voltage. The output signal is gathered from the two galvanic- coupled source electrodes via the coupling capacitor (CO). The impedance at this poi ...
A forum for the exchange of circuits, systems
... volumes have been written on the subject. This article addresses high-speed layout from a practical perspective. A major aim is to help sensitize newcomers to the many and various considerations they need to address when designing board layouts for high-speed circuitry. But it is also intended as a ...
... volumes have been written on the subject. This article addresses high-speed layout from a practical perspective. A major aim is to help sensitize newcomers to the many and various considerations they need to address when designing board layouts for high-speed circuitry. But it is also intended as a ...
The American University in Cairo School of Science and Engineering SYNTHESIZABLE
... The function of the voltage regulator is to deliver power from the unregulated source to the load. The load requires a regulated voltage and a constant voltage level should be delivered to the microprocessor during transient response [7]. Transient response happens when the load current changes as t ...
... The function of the voltage regulator is to deliver power from the unregulated source to the load. The load requires a regulated voltage and a constant voltage level should be delivered to the microprocessor during transient response [7]. Transient response happens when the load current changes as t ...
Time-to-digital converter
In electronic instrumentation and signal processing, a time to digital converter (abbreviated TDC) is a device for recognizing events and providing a digital representation of the time they occurred. For example, a TDC might output the time of arrival for each incoming pulse. Some applications wish to measure the time interval between two events rather than some notion of an absolute time.In electronics time-to-digital converters (TDCs) or time digitizers are devices commonly used to measure a time interval and convert it into digital (binary) output. In some cases interpolating TDCs are also called time counters (TCs).TDCs are used in many different applications, where the time interval between two signal pulses (start and stop pulse) should be determined. Measurement is started and stopped, when either the rising or the falling edge of a signal pulse crosses a set threshold. These requirements are fulfilled in many physical experiments, like time-of-flight and lifetime measurements in atomic and high energy physics, experiments that involve laser ranging and electronic research involving the testing of integrated circuits and high-speed data transfer.