THS1206IDAR Datasheet, PDF (29/43 Pages) Texas Instruments – 12-BIT, 4 ANALOG INPUT, 6 MSPS, SIMULTANEOUS SAMPLINGANALOG TO-DIGITAL CONVERTERS

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THS1206
SLAS217H – MAY 1999 – REVISED JULY 2003#
DATA_AV TYPE
Bit 4 and bit 5 (DATA_T, DATA_P) of control register 1 are used to program the signal DATA_AV. Bit 4 of control register 1
determines whether the DATA_AV signal is static or a pulse. Bit 5 of the control register determines the polarity of
DATA_AV. This is shown in Table 14.
Table 14. DATA_AV Type
BIT 5
DATA_P
0
0
1
1
BIT 4
DATA_T
0
1
0
1
DATA_AV TYPE
Active low level
Active low pulse
Active high level
Active high pulse
The signal DATA_AV is set to active when the trigger condition is satisfied. It is set back inactive dependent of the DATA_T
selection (pulse or level).
If level mode is chosen, DATA_AV is set inactive after the first of the TL (TL = trigger level) reads (with the falling edge of
READ). The trigger condition is checked again after TL reads. For single conversion mode, DATA_AV type should be
programmed to active level mode (set bit 4 of CR1 to zero).
If pulse mode is chosen, the signal DATA_AV is a pulse with a width of one half of a CONV_CLK cycle in continuous
conversion mode. The next DATA_AV pulse (when the trigger condition is satisfied) is sent out the earliest, when the TL
values, written into the FIFO before, were read out by the processor.
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