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AS7000 датащи(PDF) 32 Page - ams AG

номер детали AS7000
подробное описание детали  The AS7000 device provides a flexible analog front end for light sensing applications
PDF  92 Pages
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производитель  AMSCO [ams AG]
домашняя страница  http://www.ams.com
Logo AMSCO - ams AG

AS7000 датащи(HTML) 32 Page - ams AG

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ams Datasheet
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[v1-12] 2018-Feb-26
AS7000 − Detailed Description
AFE_SEQ_ADC Register (Addr: 0x44)
The AFE_SEQ_ADC register defines the time when the ADC
starts sampling during each measurement cycle. The fraction
setting permits a definition of the sampling point as a 1/16
fraction of a sequencer cycle. If seq_div=0 (1us sequencer
clock), then one unit is equivalent to 62.5ns. If, e.g. seq_div=4
(5us) then the resolution of the fract register is
62.5ns*5=312.5ns
Figure 35:
AFE_SEQ_ADC Register
AFE_SEQ_COUNTER Register (Addr: 0x80)
The AFE_SEQ_COUNTER register shows the counter value of the
sequence counter and period counter
Figure 36:
AFE_SEQ_COUNTER Register
Addr: 0x44
AFE_SEQ_ADC
Bit
Bit Name
Default
Access
Description
31:28
seq_adc_inc_fract
0x0
R/W
ADC delay increment :
seq_adc_inc_fract/16 fractional
27:24
seq_adc_fract
0x0
R/W
ADC start delay:
seq_adc_fract/16 fractional
23:16
seq_adc_inc
0x00
R/W
ADC increment to the adc sample time after each
conversion.
15:0
seq_adc
0x0000
R/W
ADC Sampling time; changes of this register have
no effect as long as the sequencer is running (seq_
en=1).
Addr: 0x80
AFE_SEQ_COUNTER
Bit
Bit Name
Default
Access
Description
31:24
subs_counter
0x00
R
Current subsampling counter value
23:16
sequence_counter
0x00
R
Current sequence counter value
15:0
cycle_counter
0x0000
R
Current cycle counter value



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