Acconeer XR112 User manual

XC112/XR112 Evaluation Kit
XC112 Connector Board, XR112 Sensor Board
User Guide

XC112/XR112 Evaluation Kit – User Guide
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© 2018 by Acconeer – All rights reserved 2019-02-04
XC112/XR112 Evaluation Kit
(XC112 Connector Board, XR112 Sensor Board)
User Guide
Author: Acconeer
Version 1.1: 2019-02-04
Acconeer AB

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2019-02-04 © 2018 by Acconeer – All rights reserved
Table of Contents
1. Overview of the XC112/XR112 Evaluation Kit.............................................................................. 4
1.1 Introduction ............................................................................................................................. 4
1.2 Getting Started ......................................................................................................................... 4
2. Software for the EVK ...................................................................................................................... 5
2.1 SW download .......................................................................................................................... 5
2.2 SW API Description ................................................................................................................ 5
3. The EVK Hardware ......................................................................................................................... 6
3.1 XC112 Connector Board ......................................................................................................... 7
3.1.1 Overview ......................................................................................................................... 7
3.1.2 Power ............................................................................................................................... 8
3.1.3 Electrical Schematics....................................................................................................... 9
3.1.4 Bill of Material .............................................................................................................. 14
3.1.5 Pinning ........................................................................................................................... 14
3.2 XR112 Sensor Board ............................................................................................................. 16
3.2.1 Overview ....................................................................................................................... 16
3.2.2 Electrical Schematics..................................................................................................... 17
3.2.3 Bill of Material .............................................................................................................. 20
3.2.4 Pinning ........................................................................................................................... 20
4 Design considerations .................................................................................................................... 22
5 Safety ............................................................................................................................................. 23
5.1 Electrostatic precautions ........................................................................................................ 23
6 Regulatory Information ................................................................................................................. 24
7 Revision History ............................................................................................................................ 25
8 Disclaimer ..................................................................................................................................... 26

XC112/XR112 Evaluation Kit – User Guide
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© 2018 by Acconeer – All rights reserved 2019-02-04
1. Overview of the XC112/XR112 Evaluation Kit
1.1 Introduction
The XC112/XR112 Evaluation Kit (The EVK) is a development platform featuring Acconeer’s A111.
This is an optimized low-power, high-precision 60 GHz radar in one package solution with integrated
Baseband, RF front-end and Antenna.
The A111 is based on pulsed coherent radar technology (PCR). It has leading-edge patented sensor
technology with pico-second time resolution. The A111 sets a new benchmark as far as power
consumption and distance accuracy are concerned and it comes fully integrated in a small package of
29 mm2.
The A111 can measure absolute distance with mm accuracy up to a range of 2m with a continuous
sweep update frequency of up to 1500 Hz.
The A111, 60 GHz radar is not compromised by any natural source of interference such as noise, dust,
color, direct or indirect light.
The EVK consists of
 1 XC112 connector board with the possibility to connect up to four radar sensor boards.
 1 XR112 which is Acconeer’s sensor board featuring A111. A 400mm long FFC for connecting
XC112 and XR112 is included with the XR112 as of February 1st, 2019. For XR112 sold before
this date, a 203.2mm long FFC, Molex 15020-0175 was included with the XR112.
The EVK does not contain any processor or micro controller. It is designed for use with a Raspberry
Pi 3.
1.2 Getting Started
A Quick Installation Guide is available at https://youtu.be/0uKrm_RAV_c
This short instruction video will ensure a smooth setup and installation. For more information on
retrieving the Acconeer SW, please refer to the next chapter.

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2. Software for the EVK
2.1 SW download
The SW is available for downloading at https://www.acconeer.com/products
2.2 SW API Description
The Acconeer SW comes with an API (Application Programming Interface). Acconeer provides
several service oriented example applications, as well as customer guidelines for application
development when utilizing the API. All APIs provided by Acconeer are documented.
Open the SW zip file downloaded from Acconeer’s download site. In the file structure, please locate
/doc.
doc/ contains API documentation in HTML format – simply open doc/html/index.html.

XC112/XR112 Evaluation Kit – User Guide
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© 2018 by Acconeer – All rights reserved 2019-02-04
3. The EVK Hardware
Figure 1 shows the block diagram for the EVK
A111
24MHz XTAL
XC112 Connector K
SPI bus diff
Raspberry Pi Connector
Stepdown
Voltage
converter
Buffers &
Level
Shifters
SPI busSPI bus diffK
INTERRUPT_S1:4
XR112
K
XC112
K=Sensor Board Number, 1-4
EEPROM
I2C
LVDS
translators
LVDS
translator
& level
shifter
SPI bus
5V
PMU_ENABLE
ENABLE
INTERRUPT
1.8V
3.3V
3.3V
1.8V
ENABLEK
INTERRUPTK
SPI_SK_ENABLE_N
Figure 1 The EVK block diagram.

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2019-02-04 © 2018 by Acconeer – All rights reserved
3.1 XC112 Connector Board
The XC112 is Acconeer’s connector board and part of the EVK.
3.1.1 Overview
Picture 1 shows the XC112 connector board, front side with a Raspberry Pi connected.

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Picture 2 shows the reverse side of the XC112.
3.1.2 Power
The Evaluation Kit is powered through the Raspberry Pi. When the power LED on the Raspberry Pi is
lit, the connector board is powered on and ready for use.

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3.1.3 Electrical Schematics
On the following pages, please find the electrical schematics for the XC112.

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© 2018 by Acconeer – All rights reserved 2019-02-04

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© 2018 by Acconeer – All rights reserved 2019-02-04

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3.1.4 Bill of Material
Table 1 shows the BOM for the XC112
Table 1 The BOM for the XC112.
Component ref. Part Number QTY Value Comment
C1, C3 10/UF/K/X5R/50V/3216 2 10uF
C10, C11, C2, C21,
C23, C25, C28, C31,
C33, C35, C37, C39,
C4, C42, C44, C46,
C5, C55, C6, C7, C8,
C9
100/NF/J/50V/X5R/1005 22 100nF
C20, C27, C34, C41 3.9/NF/K/50V/X7R/1005 4 3900pF
C24, C26, C30, C32,
C38, C40, C45, C47 1/UF/K/10V/X5R/1005 8 1uF
L1 MURATA, DFE252012R-H-
1R0M=P2
1 1uH
J1, J2, J3, J4 Molex 503480-1600 4
16Pin 0.5 FPCB
CONN BACKFLIP
J5 CNC, JINLIN, FH254-
40DSMT/2.54MM 2*20 SMD 1
R1, R10, R11, R12,
R18, R19, R2, R20,
R21, R3, R38, R39,
R4, R40, R41, R9
0/OHM/J/1005 16 0Ohm
R13, R14, R15, R16,
R17, R22, R23, R24,
R25, R5, R6, R7, R8,
R42,
R43,
R44,
R45
10/KOHM/F/1005 17 10kOhm
R27, R28, R30, R31,
R33, R34, R36, R37 51/OHM/J/1005 8 51Ohm
U1 M24128-DRDW8TP/K 1
U2 TPS62061DSGR 1
U3, U4 74LVC125APW 2
U5 NLSV4T244MUTAG 1
U6, U7, U8, U9 SN65LVDS049PW 4
3.1.5 Pinning
Table 2 shows the pinout of the XC112 Raspberry Pi connector J5.

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Table 2 The pinout of the XC112 Raspberry Pi connector.
Pin Number
Description
1 +3.3V
2 +5V
3 SDA1 connected to EEPROM
4 Not connected
5 SCL1 connected to EEPROM
6 GND
7 Not connected
8 Not connected
9 GND
10 Not connected
11 PMU_EN
12 SPI_S1_ENABLE_N, selects sensor 1 to
respond to SS_N.
13 SPI_S2_ENABLE_N, selects sensor 2 to
respond to SS_N.
14 GND
15 SPI_S3_ENABLE_N, selects sensor 3 to
respond to SS_N.
16 ENABLE_S1_3V3, selects sensor 1 to respond
to ENABLE_N.
17 +3.3V
18 INTERRUPT_S3_3V3, interrupt from sensor 3.
19 SPI_MOSI_3V3
20 GND
21 SPI_MISO_3V3
22 INTERRUPT_S4_3V3, interrupt from sensor 4.
23 SPI_CLK_3V3
24 SS_N, SPI slave select signal.
25 GND
26 SPI_S4_ENABLE_N, selects sensor 4 to
respond to ENABLE_N.
27 Not connected
28 Not connected
29 ENABLE_S2_3V3, selects sensor 2 to respond
to ENABLE_N.
30 GND
31 ENABLE_N, sensor enable signal.
32 ENABLE_S3_3V3, selects sensor 3 to respond
to ENABLE_N.

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© 2018 by Acconeer – All rights reserved 2019-02-04
Pin Number
Description
33 Not connected
34 GND
35 Not connected
36 Not connected
37 ENABLE_S4_3V3, selects sensor 4 to respond
to ENABLE_N.
38 INTERRUPT_S1_3V3, interrupt from sensor 1.
39 GND
40 INTERRUPT_S2_3V3, interrupt from sensor 2.
3.2 XR112 Sensor Board
3.2.1 Overview
Picture 3 shows the XR112. The leftmost picture shows the front side of the XR112, with the A111
mounted centrally, and the rightmost picture shows the reverse side of the XR112.

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2019-02-04 © 2018 Acconeer – All rights reserved
3.2.2 Electrical Schematics
Please find the electrical schematics of the XR112 below.

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© 2018 by Acconeer – All rights reserved 2019-02-04

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3.2.3 Bill of Material
Table 3 shows the BOM for the XR112.
Table 3 The BOM for XR112
Component Ref. Part Number QTY Value Comment
C1 3.9/NF/K/10V/X5R/0603 1 3900pF
C12, C13, C17, C18,
C19, C20, C5, C8,
C9
100/NF/K/6.3V/X5R/060
3 9 100nF
C6, C7 1/UF/K/10V/X5R/1005 2 1uF
C15, C16 6/PF/C/50V/C0G/1005 2 6pF
J1 503480-1600 1
16Pin 0.5 FPCB CONN
BACKFLIP
R1, R12, R18 10/KOHM/J/0603 3 10kOhm
R2, R3, R5, R6 51/OHM/F,J/0603 4 50Ohm
R8, R9, R10, R11 0/OHM/J/1005 4 0Ohm
R13, R14, R17 0/OHM/J/0603 3 0Ohm
R15 100/OHM/J/0603 1 100Ohm
U1 SN65LVDS049PW 1
U2 A111R2C 1
U3 74LVC125ABQ 1
U4 74AUP1T34GF 1
Y1 EPSON, TSX-3225
24.0000MF20G-AC0 1
24MHz
3.2.4 Pinning
Table 4 shows the pinout of the XC112 connector J1.
Table 4 The pinout of the XC112 connector J1.
Pin Number
Description
1 +3.3V
2 SPI_SS_3V3_N, SPI slave select.
3 GND
4 SPI_CLK-
5 SPI_CLK+
6 GND
7 SPI_MOSI+
8 SPI_MOSI-
9 GND