EVAL-AD5700-1EBZ Просмотр технического описания (PDF) - Analog Devices
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EVAL-AD5700-1EBZ Datasheet PDF : 24 Pages
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Data Sheet
AD5700/AD5700-1
TIMING CHARACTERISTICS
VCC = 1.71 V to 5.5 V, IOVCC = 1.71 V to 5.5 V, TMIN to TMAX, unless otherwise noted.
Table 3.
Parameter 1
t1
t2
t3
t4
t5
t6
t7
t8
t9
t10
t11
Limit at TMIN, TMAX Unit
1
Bit time 2 max
1
Bit time2 max
1
Bit time2 max
6
Bit times2 max
6
Bit times2 max
10
Bit times2 max
2.1
ms typ
6
ms typ
25
µs typ
10
ms typ
30
µs typ
Description
Carrier start time. Time from RTS falling edge to carrier reaching its first peak. See
Figure 3.
Carrier stop time. Time from RTS rising edge to carrier amplitude dropping below
the minimum receive amplitude.
Carrier decay time. Time from RTS rising edge to carrier amplitude dropping to ac
zero. See Figure 4.
Carrier detect on. Time from carrier on to CD rising edge. See Figure 5.
Carrier detect off. Time from carrier off to CD falling edge. See Figure 6.
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.
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 =
16 pF.
Crystal oscillator power-up time. Crystal load capacitors = 36 pF.
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.
Reference power-up time.
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 (1 bit time = 1/1200 Hz = 833.333 µs).
Rev. G | Page 5 of 24
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