Data Translation DT9816 Series, Руководство пользователя

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Chapter 6
78
Clocks
Table 21: Clock Options
DT9816 Series A/D D/A DIN DOUT C/T TACH QUAD
Internal Clock Support
SupportsInternalClock Yes Yes
External Clock Support
SupportsExternalClock Yes Yes
Simultaneous Input/Output on a Single
Clock Signal
SupportsSimultaneousClocking Yes
Base Clock Frequency
BaseClockFrequency 48 MHz
a
a. On the DT9816 and DT9816-A, the base clock frequency is divided by 12, resulting in an effective base clock
frequency of 4 MHz. On the DT9816-S and DT9816-S-WTR, the base clock frequency is divided by 4, resulting in an
effective base clock frequency of 12 MHz. The driver divides the effective base clock frequency by an internal clock
divider to achieve the desired sampling frequency.
0 0 48 MHz
Maximum Clock Divider
MaxExtClockDivider 1 0 0 65534
b
b. The module supports only even number values for the clock divider. Odd values are rounded down.
Minimum Clock Divider
MinExtClockDivider 1 1 1 2
Maximum Frequency
MaxFrequency
50 kHz, 153.846 kHz,
or 750 kHz
c
c. The DT9816 and DT9816-OEM modules support a maximum frequency of 50 kHz, the DT9816-A supports a
maximum frequency of 153.846 kHz, and the DT9816-S and DT9816-S-WTR support a maximum frequency of
750 kHz.
1 1 6 MHz
Minimum Frequency
MinFrequency 61 Hz or 183.1 Hz
d
d. For the DT9816, DT9816-A, and DT9816-OEM, the minimum frequency is 61 Hz. For the DT9816-S and
DT9816-S-WTR, the minimum frequency is 183.1 Hz.
0 0 60 Hz