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SKY12209-478LF 数据资料DataSheet下载
... bias inputs (RF1 and RF2 ports). The switch state circuit diagrams are shown in Figure 13. The values of resistors R3 and R4 (refer to the schematic diagram in Figure 16), which are both nominally 540 Ω, together with the magnitudes of the voltages applied to the RF1 and RF2 ports, determine which o ...
... bias inputs (RF1 and RF2 ports). The switch state circuit diagrams are shown in Figure 13. The values of resistors R3 and R4 (refer to the schematic diagram in Figure 16), which are both nominally 540 Ω, together with the magnitudes of the voltages applied to the RF1 and RF2 ports, determine which o ...
MM74HC4046 CMOS Phase Lock Loop - Elektronik
... This detector is a digital memory network. It consists of four flip-flops and some gating logic, a three state output and a phase pulse output as shown in Figure 6. This comparator acts only on the positive edges of the input signals and is thus independent of signal duty cycle. Phase comparator II ...
... This detector is a digital memory network. It consists of four flip-flops and some gating logic, a three state output and a phase pulse output as shown in Figure 6. This comparator acts only on the positive edges of the input signals and is thus independent of signal duty cycle. Phase comparator II ...
ABCmini/ABCmaxi Manual
... different specifications and so a suitable clock frequency must be applied accordingly. Unlike other microcontrollers from other brands (such as Microchip’s extremely-popular PIC range) the clock frequency is not internally divided, so an 8MHz frequency will execute 8,000,000 cycles (almost all inst ...
... different specifications and so a suitable clock frequency must be applied accordingly. Unlike other microcontrollers from other brands (such as Microchip’s extremely-popular PIC range) the clock frequency is not internally divided, so an 8MHz frequency will execute 8,000,000 cycles (almost all inst ...
ADE7762 数据手册DataSheet 下载
... Analog Inputs for the Voltage Channels. These channels are intended for use with voltage transducers and are referenced in this document as voltage channels. These inputs are single-ended voltage inputs with a maximum signal level of ±0.5 V with respect to VN for a specified operation. All inputs ha ...
... Analog Inputs for the Voltage Channels. These channels are intended for use with voltage transducers and are referenced in this document as voltage channels. These inputs are single-ended voltage inputs with a maximum signal level of ±0.5 V with respect to VN for a specified operation. All inputs ha ...
SN74LV4046A High-Speed CMOS Logic Phase
... and three different phase comparators (PC1, PC2, and PC3) as explained in the Features section. A signal input and a comparator input are common to each comparator as shown in the Functional Block Diagram. The signal input can be directly coupled to large voltage signals, or indirectly coupled (with ...
... and three different phase comparators (PC1, PC2, and PC3) as explained in the Features section. A signal input and a comparator input are common to each comparator as shown in the Functional Block Diagram. The signal input can be directly coupled to large voltage signals, or indirectly coupled (with ...
Optimizing IP3 and ACPR Measurements
... In addition to ensuring isolation between sources in the stimulus signal, one must also configure the VSA to use optimal linearity settings. As shown in Figure 6, the signal-to-noise ratio (SNR) and internally generated distortion products are related to the mixer level of the VSA. Typically, the mi ...
... In addition to ensuring isolation between sources in the stimulus signal, one must also configure the VSA to use optimal linearity settings. As shown in Figure 6, the signal-to-noise ratio (SNR) and internally generated distortion products are related to the mixer level of the VSA. Typically, the mi ...
Estimation of Capacitance in CMOS Logic Gates - INESC-ID
... extracted from layout information. We have performed several experiments on (necessarily) simple circuits where power estimates were obtained both using SPICE, and SIS using the capacitance values obtained through our model. The results are very promising, with power differences of less than 10%. Th ...
... extracted from layout information. We have performed several experiments on (necessarily) simple circuits where power estimates were obtained both using SPICE, and SIS using the capacitance values obtained through our model. The results are very promising, with power differences of less than 10%. Th ...
PCA9527 3-channel bidirectional bus extender for HDMI, I2C
... device has two power supply pins to allow voltage level shift from 2.7 V to 5 V, and a rise time accelerator on port A of each DDC clock and data for driving longer cable (up to 18 meters or 1400 pF reliably without violating the bus rise time). The 5 V tolerant CEC channel is internally connected t ...
... device has two power supply pins to allow voltage level shift from 2.7 V to 5 V, and a rise time accelerator on port A of each DDC clock and data for driving longer cable (up to 18 meters or 1400 pF reliably without violating the bus rise time). The 5 V tolerant CEC channel is internally connected t ...
AD8067
... the total drive power is VS/2 × IOUT, some of which is dissipated in the package and some in the load (VOUT × IOUT). The difference between the total drive power and the load power is the drive power dissipated in the package. RMS output voltages should be considered. ...
... the total drive power is VS/2 × IOUT, some of which is dissipated in the package and some in the load (VOUT × IOUT). The difference between the total drive power and the load power is the drive power dissipated in the package. RMS output voltages should be considered. ...
PI6C5946004
... It is suggested to add pull-up=4.7k and pull-down=1k for LVCMOS pins even though they have internal pull-up/down but with much higher value (>=50k) for higher design reliability. ...
... It is suggested to add pull-up=4.7k and pull-down=1k for LVCMOS pins even though they have internal pull-up/down but with much higher value (>=50k) for higher design reliability. ...
Wideband, Low-Power, Current Feedback Operational Amplifier OPA694 FEATURES
... impedance is set to 50Ω with a resistor to ground and the output impedance is set to 50Ω with a series output resistor. Voltage swings reported in the Electrical Characteristics are taken directly at the input and output pins, while load powers (dBm) are defined at a matched 50Ω load. For the circui ...
... impedance is set to 50Ω with a resistor to ground and the output impedance is set to 50Ω with a series output resistor. Voltage swings reported in the Electrical Characteristics are taken directly at the input and output pins, while load powers (dBm) are defined at a matched 50Ω load. For the circui ...
CM8870 - Bilim Teknik
... (tGTP), VC reaches the threshold (VTSt) of the steering logic to register the tone pair, thus latching its corresponding 4-bit code (See Figure 2) into the output latch. At this point, the GT output is activated and drives VC to VDD. GT continues to drive high as long as ESt remains high, signaling ...
... (tGTP), VC reaches the threshold (VTSt) of the steering logic to register the tone pair, thus latching its corresponding 4-bit code (See Figure 2) into the output latch. At this point, the GT output is activated and drives VC to VDD. GT continues to drive high as long as ESt remains high, signaling ...
PI6C5946002
... It is suggested to add pull-up=4.7k and pull-down=1k for LVCMOS pins even though they have internal pull-up/down but with much higher value (>=50k) for higher design reliability. ...
... It is suggested to add pull-up=4.7k and pull-down=1k for LVCMOS pins even though they have internal pull-up/down but with much higher value (>=50k) for higher design reliability. ...
Power dividers and directional couplers
![](https://commons.wikimedia.org/wiki/Special:FilePath/Microlab_10dB_dir_coupler.jpg?width=300)
Power dividers (also power splitters and, when used in reverse, power combiners) and directional couplers are passive devices used in the field of radio technology. They couple a defined amount of the electromagnetic power in a transmission line to a port enabling the signal to be used in another circuit. An essential feature of directional couplers is that they only couple power flowing in one direction. Power entering the output port is coupled to the isolated port but not to the coupled port.Directional couplers are most frequently constructed from two coupled transmission lines set close enough together such that energy passing through one is coupled to the other. This technique is favoured at the microwave frequencies where transmission line designs are commonly used to implement many circuit elements. However, lumped component devices are also possible at lower frequencies. Also at microwave frequencies, particularly the higher bands, waveguide designs can be used. Many of these waveguide couplers correspond to one of the conducting transmission line designs, but there are also types that are unique to waveguide.Directional couplers and power dividers have many applications, these include; providing a signal sample for measurement or monitoring, feedback, combining feeds to and from antennae, antenna beam forming, providing taps for cable distributed systems such as cable TV, and separating transmitted and received signals on telephone lines.