ZOPT2202 Datasheet

© 2016 Integrated Device Technology, Inc

12

September 21, 2016

3. Detailed Description

The ZOPT2202 contains 5 different photodiode channels for UV energy level measurement, temperature compensation, and stray light

compensation. The sensor diodes are arranged in a matrix array. The photodiode currents are converted to digital values by the ADCs. The

ZOPT2202 includes some peripheral circuits such as internal oscillator, current source, voltage reference, and non-volatile memory (NVM) to

store trimming information.

3.1

Block Diagram of ZOPT2202

Figure 3.1 Simplified ZOPT2202 Block Diagram

I²C

Register File

INT

SDA

SCL

Main State Machine

NVM

Oscillator

Power-On-Reset

Bandgap

Regulator

Reference

GND

VDD

1.7 to 3.6V

Interrupt

Control

= Digital Block

= Analog Block

Sensor

Control

ADC

UVA

ADC

UVB

ADC

UVB2

ADC

COMP

ADC

UV_COMP