Data Translation DT9837, User Manual

Page: 101 / 150

Supported Device Driver Capabilities
101
Clocks
Table 18: Clock Options
DT9837 Series A/D D/A
a
a. The D/A subsystem is not supported by the DT9837B module.
DIN DOUT C/T TACH QUAD
Internal Clock Support
SupportsInternalClock Yes Yes
External Clock Support
SupportsExternalClock
Simultaneous Input/Output on a Single
Clock Signal
SupportsSimultaneousClocking Yes
Base Clock Frequency
BaseClockFrequency 27 MHz
24 MHz or 27
MHz
b
b. The base clock for the D/A subsystem on the DT9837 is fixed at 24 MHz; the base clock for the D/A subsystem on the
DT9837A and DT9837C has a maximum frequency of 27 MHz.
0 0
Maximum Clock Divider
MaxExtClockDivider 1.0 1.0 1 1 1 1
Minimum Clock Divider
MinExtClockDivider 1.0 1.0 1 1 1 1
Maximum Frequency
MaxFrequency
52.734 kHz,
105.469 kHz
c
c. The DT9837 and DT9837A support a maximum sampling frequency of 52.734 kHz; the DT9837B and DT9837C support a
maximum sampling frequency of 105.469 kHz.
46.875 kHz,
52.734 kHz, or
96 kHz
d
d. The DT9837 supports a fixed clock frequency of 46.875 kHz for D/A subsystem 0; the DT9837A supports programmable
clock frequencies from 10 kHz to 52.734 kHz for D/A subsystem 0; and the DT9837C supports programmable clock
frequencies from 10 kHz to 96 kHz for D/A subsystem 0
0 0 0 0
Minimum Frequency
MinFrequency 195.3 Hz
46.875 kHz or
10 kHz
d
0 0 0 0