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AS6221T

General Description

Datasheet

• PUBLIC

DS001032

• v1-00 • 2022-Apr-08

37

│ 4

1.2

Applications

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Fitness/Health Wristbands

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Personal Computers

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Wearables

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HVAC

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Replacement of PTCs

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Electronic Equipment

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Tablets

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Convertibles

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Laptop

1.3

Block Diagram

The functional blocks of this device are shown below:

Figure 2 :

Functional Blocks of AS6221T

In Figure 2 the functional blocks are depicted. The sensing element for sensing the temperature is a Si

bipolar transistor. The analog signal of the sensing element is converted into a digital signal by the A/D

converter and the signal is further processed by a digital signal processor and written into the

registers. The registers can be accessed via the serial bus interface (I²C bus).

Temperature

Sensor Analog

Frontend

A/D Converter

Digital Signal

Processing

Registers

Oscillator

Control Logic

I²C Interface

AS6221T

VDD

VSS

ADD0

ADD1/Alert

SCL

SDA