AS7058

General description

Short Datasheet

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DS001085

• v1-01 • 2023-Oct-26

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1.3

Block diagram

The functional blocks of this device are shown below:

Figure 1: Functional blocks of AS7058

32kHz

Osc.

INT

MOD 1

Current input

20 bit delta-sigma

8 Bit

DAC

PD Offset

8 Bit

DAC

MOD 3

Voltage input

20 bit delta-sigma

BioZ / GSR

(Amp, Generator,

Demodulator,

LED/VCSEL Driver 1

...

LED/VCSEL Driver 2

Sequencer

Interrupt

SINC

Filter

Post

Processing

IIR

Filter

FIFO

VCSEL Safety Protection

AS7058

Vital Signs Monitoring AFE

LED1

LED4

...

LED5

LED8

PD1

PD2

PD3

PD4

PD5

PD6

PD7

PD8

ECG_REF

ECG_INP

ECG_INN

BIOZ1

BIOZ2

BIOZ3

BIOZ4

SCL

SDA_MOSI

MISO

CSXN

GPIO

EXTCLK_SYNC

PGND1

PGND2

VAVDD

VAVDD

VIOVDD

VDVDD

MOD 2

Current input

20 bit delta-sigma

ECG Amp

Reference

Leadoff-Detection

PD Offset

2MHz

Osc.

PLL / CGU

Digital Core