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AS7150 Datasheet(PDF) 110 Page - ams-OSRAM AG

Part # AS7150
Description  Optical force sensing analog front end
PDF  159 Pages
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Manufacturer  AMSOSRAM [ams-OSRAM AG]
Direct Link  https://ams-osram.com/
Logo AMSOSRAM - ams-OSRAM AG

AS7150 Datasheet(HTML) 110 Page - ams-OSRAM AG

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AS7150
Register description
Datasheet • PUBLIC • Document Feedback
DS001130 • v3-00 • 2026-Jan-26
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8.10.2
PD_SEQ1_SUB2 register (Address 0x54)
Table 79: PD_SEQ1_SUB2 register
Addr: 0x54
PD_SEQ1_SUB2
Bit
Bit name
Default
Access
Bit description
6:4
mod1_seq1_sub2_pdsel
0
R/W
This bit assigns the photodiode input for
ADC modulator 1 in sequencer 1 for
subsample 2. Each bit represents one
photodiode input whereas the LSB
represents PD1 and the MSB represents
PD3 input.
001: PD1 assigned to ADC modulator
010: PD2 assigned to ADC modulator
100: PD3 assigned to ADC modulator
3
mod2_seq1_sub2_pdsel
0
R/W
This is the input source selection bit for ADC
modulator 2. If this bit is set to zero, the
photodiode inputs can be assigned to
modulator 2 in sequencer 1 for subsample 2.
If this bit is set to one the AFE function block
is connected to ADC modulator 2 in
sequencer 1 for subsample 2 to measure
various input sources.
0: Photodiode inputs assigned to ADC
1: AFE inputs assigned to ADC modulator 2
2:0
Depending on register bit
mod2_seq1_sub2_pdsel[3] the register bits
mod2_seq1_sub2_pdsel[2:0] support a
different function.
If mod2_seq1_sub2_pdsel[3] is set to 0 the
register assigns the photodiode inputs to
ADC modulator 2 in sequencer 1 for
subsample 2:
001: PD1 connected to ADC modulator 2
010: PD2 connected to ADC modulator 2
100: PD3 connected to ADC modulator 2
If mod2_seq1_sub2_pdsel[3] is set to 1 the
AFE function block is connected to ADC
modulator 2 in sequencer 1 for subsample 2
and allows for the following input
configuration:
000: LED 1
001: LED 2
010: LED 3
011: VCSELS
100: VCSELA
101: PGND
110: VDD
111: ITEMP



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