Data Sheet

[AK9753]

017005237-E-00 2017/04

- 4 -

4. Block Diagram and Functions

4.1. Block Diagram

Figure 4.1 AK9753 Block Diagram

4.2. Block Functions

Table 4.1. Block Functions

Block

Function

4 x IR

Four IR Sensor

MUX

Matrix Switch

TIA

Photocurrents of IR Sensor are converted to voltage signals.

AMP

Programmable gain amplifier to adjust the outputs.

Temperature Sensor

Built-in Temperature Sensor

ADC

The amplifier output and the built-in temperature sensor output are

converted to digital signals.

C Interface

Interface to external host controller.

SCL and SDA pins are provided for I

C Interface. The interface operates up

to 400kHz rate and down to 1.65V low voltage condition.

EEPROM

OSC

Internal Oscillator.

POR

Power On Reset circuit.