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| 两侧同时换到之前的修订记录 前一修订版 后一修订版 | 前一修订版 | ||
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analog_discovery_2_参考手册 [2016/08/02 11:50] gongyu [2.6.1. Analog Section] |
analog_discovery_2_参考手册 [2017/03/28 02:57] (当前版本) gongyu [9.10. Other features] |
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| The differential inputs are driven via a low-pass filter comprised of C141 together with R10 through R13, in the buffer stage. The differential clock is AC-coupled and the line is impedance matched. The clock is internally divided by two for operating at a constant 100 MHz sampling rate. An external reference voltage is used, buffered by IC 19. The ADC generates the common mode reference voltage (VCM_SC) to be used in the buffer stage. | The differential inputs are driven via a low-pass filter comprised of C141 together with R10 through R13, in the buffer stage. The differential clock is AC-coupled and the line is impedance matched. The clock is internally divided by two for operating at a constant 100 MHz sampling rate. An external reference voltage is used, buffered by IC 19. The ADC generates the common mode reference voltage (VCM_SC) to be used in the buffer stage. | ||
| - | 查分输入电压范围: | + | 差分输入电压范围: |
| $$-1V<V_{ADC\;diff}<1V\label{19}\tag{19}$$ | $$-1V<V_{ADC\;diff}<1V\label{19}\tag{19}$$ | ||
| 行 598: | 行 598: | ||
| ---- | ---- | ||
| - | ====== 6. Power Supplies and Control ====== | + | ====== 6. 电源和控制 ====== |
| - | + | 此部分为所有的电源监测和控制电路，内部的电源以及用户电源。 | |
| - | This block includes all power monitoring and control circuitry, internal power supplies, and user power supplies. | + | |
| 行 898: | 行 897: | ||
| * 1.25A continuous output current | * 1.25A continuous output current | ||
| - | * 145 mΩ and 70 mΩ integrated MOSFETs | + | * 145 mΩ and 70 mΩ integrated MOSFETs |
| * Input voltage range from 2.3 V to 5.5 V; output voltage from 0.6 V to VIN | * Input voltage range from 2.3 V to 5.5 V; output voltage from 0.6 V to VIN | ||
| * 1.2 MHz fixed switching frequency; Selectable PWM or PFM mode operation | * 1.2 MHz fixed switching frequency; Selectable PWM or PFM mode operation | ||
| 行 1099: | 行 1098: | ||
| * Imax (AUX powered): 700mA((This limit results from the structure of each user power supply (positive and negative). It is not conditioned by the load degree of the complementary user supply.)) for each supply | * Imax (AUX powered): 700mA((This limit results from the structure of each user power supply (positive and negative). It is not conditioned by the load degree of the complementary user supply.)) for each supply | ||
| * Accuracy (no load): ±10mV | * Accuracy (no load): ±10mV | ||
| - | * Output impedance: 50mΩ (typical) | + | * Output impedance: 50mΩ (typical) |
| 行 1154: | 行 1153: | ||
| - | ---- | ||
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| - | *³The Network Analyzer instrument in WaveForms uses a channel of Analog Outputs (AWG) and all Analog Inputs (Scope) hardware resources. When it starts running, all other instruments using the same HW resources (competing instruments: AWG, Scope, Voltmeters, Spectrum Analyzer) are forced to a BUSY state. When running a competing instrument, the Network Analyzer is forced to a BUSY state | ||
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| - | °This instrument in WaveForms uses Analog Inputs (Scope) Hardware resources competing with other WaveForms instruments (Scope, Spectrum Analyzer, Network Analyzer, Voltmeter). When it starts running, the competing instruments are forced to a BUSY state. When running a competing instrument, this instrument is forced to a BUSY state. | ||
| - | °°This instrument in WaveForms uses Analog Inputs (Scope) Hardware resources competing with other WaveForms instruments (Scope, Spectrum Analyzer, Network Analyzer, Voltmeter). When it starts running, the competing instruments are forced to a BUSY state. When running a competing instrument, this instrument is forced to a BUSY state. | ||