Rainbow Electronics MX7705 - Manual (Page 6)

MX7705
16-Bit, Low-Power, 2-Channel,
Sigma-Delta ADC
6 _______________________________________________________________________________________
TIMING CHARACTERISTICS
(V DD = 3V or 5V, GND = 0, V REF+ = 1.225V for V DD = 3V and V REF+ = 2.5V for V DD = 5V, V REF- = GND, external f CLKIN =
2.4576MHz, CLKDIV bit = 0, C REF+ to GND = 0.1µF, C REF - to GND = 0.1µF, T A = T MIN to T MAX , unless otherwise noted.) (Note 16)
(Figures 8, 9)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
DRDY High Time
500 /
f CLKIN
s
Reset Pulse-Width Low 100 ns
DRDY Fall to CS Fall Setup Time t 1 0 ns
CS Fall to SCLK Rise Setup Time t 2 120 ns
V DD = 4.75V to 5.25V 0 80
SCLK Fall to DOUT Valid Delay t 3
V DD = 2.7V to 3.6V 0 100
ns
SCLK Pulse-Width High t 4 100 ns
SCLK Pulse-Width Low t 5 100 ns
CS Rise to SCLK Rise Hold Time t 6 0 ns
V DD = 4.75V to 5.25V 60 Bus Relinquish Time After SCLK
Rising Edge
t 7
V DD = 2.7V to 3.6V 100
ns
SCLK Fall to DRDY Rise Delay t 8 100 ns
DIN to SCLK Setup Time t
9
30 ns
DIN to SCLK Hold Time t 10 20 ns