ADBM-A350 datasheet(2/55 Pages) AVAGO

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Pinout of ADBM-A350 Optical Sensor

Name

Description

Input/Output pin

Function

GND_SHIELD

Ground shield

GPIO

General Purpose

Input/ Output pin

I (Schmitt trigger input)/

O (CMOS output)

Pin can be used for FPD output, PWM output

or Dome/ Button click input. If configure as

input do not leave pin unconnected

GND

Ground

IO_NCS_A1

TWI address set

or Chip Select

I (Schmitt trigger input)

SPI : NCS (chip select) active low signal

TWI Address Select, A1

Do no leave pin unconnected

IO_MISO_SDA

TWI serial data

or Master In Slave Out

In SPI – CMOS output. In

TWI – open drain I/O

SPI : MISO (Master Input Slave Out) signal

TWI : serial data signal

IO_MOSI_A0

TWI address set

or Master Out Slave In

I (Schmitt trigger input)

SPI : MOSI (Master Out Slave In) signal

TWI Address Select, A0

Do no leave pin unconnected

IO_CLK

Serial clock input

I (Schmitt trigger input)

Serial clock signal

NRST

Hardware Chip Reset

I (Schmitt trigger input)

Set to high when not used

Active low signal

DOME-

Dome -

EVENT_INT

Event Interrupt

(active low output)

O (CMOS output)

Open when not used

Default active low signal, can be changed

in Event control register 0x1d

SHTDWN

Shutdown

(active high input)

I (Schmitt trigger input)

Set to low when not used

Active high signal

No Connect

No connection

VDD

Voltage supply

Supply 1.8V

DOME+

Dome +

IO_SELECT

SPI / TWI Select

I (Schmitt trigger input)

TWI : GND or SPI : High

VDDIO

Voltage supply

for Input/ Output

Supply 1.8V or 2.8V

No Connect

No connection

Note:

1. NC pins can be tied to VDD, GND or left open/ unconnected.

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