Hello,

I have some questions about software reset of ADPD107 from our customer.

(1)Could you please advise me a term of software reset? How should we wait for next communication of SPI after executing the software reset?

(2) I think we can execute…

Hello,

I received a question about sync trigger of ADPD107 from our customer.

The customer input a trigger signal (25Hz) to GPIO0. And he checked PDC timing. But the PDC timing has variation around +/-1usec as the trigger signal.  Is this ADPD107's specification…

I am trying to use TIA ADC Mode for the ADPD107, and the data sheet does not explicitly describe how the timing should be changed to properly sample all TIAs during a timing block. The only mention of timing with respect to TIA ADC mode is the following…

Hi FormerMember, I am currently using the ADPD107 for PPG sensing. I am getting some strange looking noise on the optical signal inconsistently. It seems to be more of a problem when sampling at lower LED brightnesses, but it is not always consistently…

Hi FormerMember,

We are seeing what looks like inaccuracies in the drive current on the ADPD107. The datasheet says the drive current should be:

LEDPeak = (50.3 + 19.8 * ILED_COARSE) * (0.74 + 0.022 * ILED_FINE) * (0.4 + 0.6 * ILED_SCALE)

We are trying…

Dear all,

Request you to provide some pointers related to performing noise analysis for ADPD107 SPO2 Based signal chain containing Photodiode and Leds. Any application note to refer to will be helpful.

Thanks

.

Hi,

I'm trying TIA mode individual gain setting and measuring when PD output current is 0uA (connecting Photo Diode but no light)

Settings outline is following,

SLOTA ch1: 25k  ch2: 200k  

SLOTB off

ADC OFFSET: ch1:0  ch2: 0

LED off

(discribe this "setting1…

Hello.

Can I know the BOM of the ADPD1081 evaluation board?

(document: eval-adpd1081z-ppg-ug-1255)

Q1. U3(No information)?

Q2. U4(ADPD107-WLCSP)? / The pin name also matches ADPD107. Why not ADPD1081?