AMC1305L25 Datasheet, PDF (10/39 Pages) Texas Instruments – AMC1305x High-Precision, Reinforced Isolated Delta-Sigma Modulators

AMC1305L25, AMC1305M05, AMC1305M25
SBAS654C – JUNE 2014 – REVISED DECEMBER 2014
8.12 Switching Characteristics
over operating free-air temperature range (unless otherwise noted)
PARAMETER
t_CLK
t_HIGH
t_LOW
t_D
t_ISTART
CLKIN, CLKIN_N clock period
CLKIN, CLKIN_N clock high time
CLKIN, CLKIN_N clock low time
Falling edge of CLKIN, CLKIN_N to DOUT, DOUT_N valid delay,
C_LOAD = 5 pF
Interface startup time
(DVDD at 3.0 V min to DOUT, DOUT_N valid with AVDD ≥ 4.5 V)
t_ASTART
Analog startup time (AVDD step up to 4.5 V with DVDD ≥ 3.0 V)
CLKIN
t_CLK
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MIN
TYP
49.75
50
19.9
25
19.9
25
0
32
1
t_HIGH
MAX
200
120
120
15
UNIT
ns
ns
ns
ns
32
CLKIN
cycles
ms
CLKIN_N
DOUT
t_LOW
t_D
DOUT_N
Figure 1. Digital Interface Timing
DVDD
CLKIN
DOUT
...
Data not valid
Valid data
t_ISTART = 32 CLKIN cycles
Figure 2. Digital Interface Startup Timing
10
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