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參數資料
| 型號： | THS1206QDAR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | ADC |
| 英文描述： | 4-CH 12-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32 |
| 封裝： | PLASTIC, TSSOP-32 |
| 文件頁數： | 22/43頁 |
| 文件大小： | 722K |
| 代理商： | THS1206QDAR |
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THS1206
SLAS217H – MAY 1999 – REVISED JULY 2003#
www.ti.com
29
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
BIT 4
DATA_T
DATA_AV TYPE
0
Active low level
0
1
Active low pulse
1
0
Active high level
1
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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