AS7038RB datasheet(36/127 Pages) AMSOSRAM

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AS7038RB

Functional Description

Datasheet

• PUBLIC

DS000726

• v2-00 • 2021-Jun-02

126

│ 35

Addr: 0x1a

PD_CFG

Bit

Bit Name

Default

Access

Bit Description

pd2

0: Photodiode PD2 is disconnected from photo

amplifier

1: Photodiode PD2 is connected to photo amplifier

(as defined in diode_ctrl)

pd1

0: Photodiode PD1 is disconnected from photo

amplifier

1: Photodiode PD1 is connected to photo amplifier

(as defined in diode_ctrl)

pd_i1

0: Photodiode B (see Photodiode Characteristics)

disconnected from TIA input

1: Photodiode B (see Photodiode Characteristics)

connected to TIA input; set ltf1_sel=0 and ltf2_sel=0.

pd_i0

0: GPIO0-input is disconnected from photo amplifier

1: GPIO0-input is connected to photo amplifier;

set gpio_a[0]=1.

The PD_CFG register is used to configure the input to the photo amplifier.

PDOFFX_LEDOFF Register (Address 0x1b)

Figure 27:

PDOFFX_LEDOFF Register

Addr: 0x1b

PDOFFX_LEDOFF

Bit

Bit Name

Default

Access

Bit Description

7:0

pdoffx_ledoff

Input offset current if all LEDs are OFF (all sw_led*

sequencer outputs are zero)

Ioffset = pdoffx_ledoff*10 nA if PD_CFG[6] = 0

Ioffset = pdoffx_ledoff*20 nA if PD_CFG[6] = 1

0: Offset source is turned OFF

AS7038RB Datenblatt(PDF) 36 Page - ams-OSRAM AG

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