AS7030B datasheet(35/129 Pages) AMSCO

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AS7030B

Functional Description

Datasheet

• PUBLIC

DS000716

• v1-00 • 2020-Jun-10

128

│ 34

Addr: 0x2e

MAN_SEQ_CFG

Bit

Bit Name

Default

Access

Bit Description

man_sw_sd

mult

If man_mode=1

0: Disables synchronous demodulator multiplication

1: Enables synchronous demodulator multiplication

man_sw_sd

pol

If man_mode=1

0: Negative polarity in synchronous demodulator

multiplication

1: Positive polarity in synchronous demodulator

multiplication

man_sw_itg

If man_mode=1

0: All integrator capacitors are shorted. Integrator is

reset

1: Integrator capacitors are charging up. Integrator is

running

3:1

diode_ctrl

Connection of Photodiodes PD1, PD2, PD3, PD4 to the

photodiode amplifier.

0: PD1-PD4 are connected

1: PD1 synchronous to LED1, PD2 sync/to LED2

PD3 sync/to LED3, PD4 sync/to LED4

2: PD1 synchronous to LED1, PD2 sync/to LED1

PD3 sync/to LED2, PD4 sync/to LED2

3: PD1 synchronous to LED1, PD2 sync/to LED1

PD3 sync/to LED4, PD4 sync/to LED4

4: SPO2 mode *(obsolete): (negedge(sdm1) or

negedge(sdp1)) - PD1=0 PD2=0 PD3=1 PD4=1;

(negedge(sdm2) or negedge(sdp2)) - PD1=1 PD2=1

PD3=0 PD4=0

Note that PD_CFG.pdX takes precedence - to turn OFF

one photo diode, the respective bit has to be de-

asserted in the PD_CFG register.

PD_CF

G.pdX

diode_c

trl

Photo

Diode

Photo

Diode

Photo

Diode

Photo

Diode

OFF

LED1

LED2

LED3

LED4

LED1

LED2

LED1

LED4

SPO2 mode (obsolete)

5..7

Do not use

seq_en

0: Disables sequencer

1: Enables sequencer

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