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AD5421 Folha de dados(PDF) 5 Page - Analog Devices |
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AD5421 Folha de dados(HTML) 5 Page - Analog Devices |
5 / 20 page Data Sheet AD5700/AD5700-1 Rev. A | Page 5 of 20 TIMING CHARACTERISTICS VCC = 2 V to 5.5 V, IOVCC = 1.71 V to 5.5 V, TMIN to TMAX, unless otherwise noted, 1 bit time = 1/1200 Hz = 833.333 μs. Table 3. Parameter1 Limit at TMIN, TMAX Unit Description t1 1 Bit time2 max Carrier start time. Time from RTS falling edge to carrier reaching its first peak. See Figure 3. t2 1 Bit time2 max Carrier stop time. Time from RTS rising edge to carrier amplitude dropping to ac zero. See Figure 4. t3 1 Bit time2 max Carrier decay time. Time from RTS rising edge to carrier amplitude dropping to ac zero. See Figure 4. t4 6 Bit times2 max Carrier detect on. Time from carrier on to CD rising edge. See Figure 5. t5 6 Bit times2 max Carrier detect off. Time from carrier off to CD falling edge. See Figure 6. t6 10 Bit times2 max Carrier detect on when switching from transmit mode to receive mode in the presence of a constant valid carrier. Time from RTS rising edge to CD rising edge. See Figure 7. t7 2.1 ms typ Crystal oscillator power-up time. On application of a valid power supply voltage at VCC or on enabling of the oscillator via the XTAL_EN pin. Crystal load capacitors = 8 pF. t8 6 ms typ Crystal oscillator power-up time. Crystal load capacitors = 18 pF. t9 25 μs typ Internal oscillator power-up time. On application of a valid power supply voltage at VCC or on enabling of the oscillator via the CLK_CFG0 and CLK_CFG1 pins. t10 10 ms typ Reference power-up time. t11 30 μs typ Transition time from power-down mode to normal operating mode (external clock source, external reference). 1 Specifications apply to AD5700/AD5700-1 configured with internal or external receive filter. 2 Bit time is the length of time to transfer one bit of data. |
Nº de peça semelhante - AD5421 |
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Descrição semelhante - AD5421 |
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