A121-001-R datasheet(8/24 Pages) ACCOONEER

8 / 24 page

A121 Pulsed Coherent Radar (PCR)

Preliminary Datasheet v0.3

2022-09-22

Page 8 of 24

Pin name

Pin type

Description

Comment

C9, D10

VTX

Supply voltage

Supply voltage, RF part

GPIO1

I/O

For future use. Connect to ground

F10

ENABLE

I/O

To control OFF/ON/Hibernate/Reset

Recommended to be connected to host

MCU available GPIO. ENABLE is active

high

GPIO2

I/O

For future use. Connect to ground

H10

XOUT

CLK

XTAL output

RESET_N

I/O

RESET_N must be connected to VIO

SPI_SS

I/O

SPI slave select, active low select.

VDIG

Supply voltage

Supply voltage, digital part

J10

XIN

CLK

XTAL input

SPI_CLK

I/O

SPI Serial Clock

SPI_MISO

I/O

Master Input

– Slave Output

GPIO4

I/O

For future use. Connect to ground

SPI_MOSI

I/O

Master Output

– Slave Input

INTERRUPT

I/O

Interrupt signal, that is used as an

interrupt in the host, more details are

found in section 7, Description.

mandatory

VIO

Supply voltage

Supply voltage, digital part

Table 3.1. A121 sensor pin list.

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