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AS7000 датащи(PDF) 41 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) 41 Page - ams AG

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ams Datasheet
Page 41
[v1-12] 2018-Feb-26
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AS7000 − Detailed Description
Optical Signal Conditioning Registers
Register bit sigref_en see register AFE_LED_CFG.
Figure 53:
AFE_SC_CFG
0x70: AFE_SC_CFG
Field
Name
Rst
Type
Description
26
sd_pol_init
0
RW
The low level driver shall ensure that this register is 0 if one
of the seq_sdm pulses is first, and is 1 if the seq_sdp is first
within a sequence.
25:24
aa_freq
0
RW
Anti-aliasing filter cut-off frequency
Setting
Signal
010kHz
120kHz
240kHz
360kHz
20:13
sd_subs
0
RW
Synchronous demodulator subsampling ratio between
sequencer frequency and ADC sampling frequency.
ADC-Fsample = Sequencyer_Frequency/(sd_subs+1)
When setting to 0, then in every sequencer iteration the
ADC will run.
When setting to 1, then the first sequencer iteration will
not trigger the ADC, but the second one will.
Setting to N will make N iterations without ADC, followed
by one iteration with the ADC measurement executed.
It is recommended to use the ADC interrupt in this case
and not the sequencer interrupt.
12:11
sd_bw
0
RW
Synchronous demodulator low pass filter.
Setting
Frequency
010Hz
120Hz
240Hz
380Hz
10
hp_en
0
RW
0...Power down of the high pass filter
1...Enable high pass filter
9hp_byp
0
RW
0...HP filter is used
1...HP filter is bypassed



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