belmont hw over- view - bittium

© Bittium 2018 | Public www.bittium.com Version 1.0

Belmont HW Over-view

Public

Belmont 2 (23)

Version 1.0 © Bittium 2018

Table of Contents

1 Definitions, terms, acronyms, abbreviations .............................................................................................. 4

2 Product overview ........................................................................................................................................ 7

3 Block diagram .............................................................................................................................................. 8

4 Technical specificals .................................................................................................................................. 11

4.1 Electrical specification ..................................................................................................................... 11

4.1.1 Sequans VZM20Q LTE Module .................................................................................................... 11

4.1.2 Sony CXD5600GF GNSS module .................................................................................................. 11

4.1.3 Giesecke & Devrient eSIM component ....................................................................................... 11

4.2 Absolute Maximum ratings ............................................................................................................. 12

4.3 Recommended ratings and pin out ................................................................................................. 12

4.4 Connectors ....................................................................................................................................... 13

4.4.1 Interface between Nucleo and Belmont ..................................................................................... 13

4.4.2 Antenna connectors .................................................................................................................... 15

4.4.3 USB............................................................................................................................................... 15

5 Mechanical specification ........................................................................................................................... 16

6 Enviormental specifications ...................................................................................................................... 17

7 Design considerations ............................................................................................................................... 18

7.1 Connectors to Nucleo board ........................................................................................................... 18

7.2 Power ............................................................................................................................................... 18

7.3 Audio................................................................................................................................................ 18

7.4 Modem ............................................................................................................................................ 18

7.5 GNSS ................................................................................................................................................ 19

7.6 LEDs and Button .............................................................................................................................. 19

7.7 Debug ............................................................................................................................................... 19

8 Antenna considerations ............................................................................................................................ 20

8.1 Antenna measurements .................................................................................................................. 20

8.2 GPS and LTE B13 interoperability .................................................................................................... 21

9 Certifications (Verizon) .............................................................................................................................. 22

References ....................................................................................................................................................... 23

Public

Belmont 3 (23)


Public

Belmont 4 (23)


1 DEFINITIONS, TERMS, ACRONYMS, ABBREVIATIONS

The definitions, terms, acronyms and abbreviations not commonly known are listed in Table 1. Table 1. Project definitions, terms, acronyms and abbreviations

Abbreviation Description

3GPP 3rd Generation Partnership Project

4G 4th Generation of standards for mobile phones and mobile tele-

communications

BOM Bill Of Materials

BB Baseband

Chipset A set of Integrated Circuits and corresponding SW designed for mo-

bile phone functionality

End Product Validated product ready for commercial deployment

EMS Electronics Manufacturing Supplier

ETSI European Telecommunication Standardizing Institute

FCC Federal Communications Commission

GCF-CC Global Certification Forum – Certification Criteria

HW Hardware

ID Industrial Design

3GPP 3rd Generation Partnership Project

BAT Basic Acceptance Test

BOM Bill of Materials

CAT Category

CR Change Request

dB Decibel

dBi dB (isotropic)

dBm Decibels relative to one mill watt

eSIM Embedded SIM

Public

Belmont 5 (23)



FCC Federal Communications Commission (USA)

FreeRTOS Free Real Time Operating System

GCF Global Certification Forum

GNSS Global Navigation Satellite System

GPS Global Positioning System

IoT Internet of Things

LED Light Emitting Diode

LTE Long Term Evolution

MCU Microcontroller Unit

MHz Megahertz

mm Millimetre

OD Open Development

PCB Printed Circuit Board

PS Project Start

PTCRB

North American cellular operators certification forum (formerly "PCS

Type Certification Review Board")

RF Radio Frequency

SIM Subscriber Identity Module (Card)

SMD Surface-Mount Device

SOW Statement of Work

SPI Serial Peripheral Interface bus

STM ST Microelectronics

SW Software

TC Test Case

TIS Total Isotropic Sensitivity

Public

Belmont 6 (23)



TRP Total Radiated Power

UART Universal Asynchronous Receiver/Transmitter

UICC Universal Integrated Circuit Card

UL Uplink

Public

Belmont 7 (23)


2 PRODUCT OVERVIEW

The Belmont product (hereafter, known as the “Belmont”) is a development kit for Verizon’s partners tar-geting the consumer device segment of the IoT market. Verizon and its development partners may use the development kit for development of the products in the IoT market segment including fitness trackers, smart watches, smart glasses, connected shoes, prescription caps, and asset trackers. The typical IoT device requirements from this segment include low power con-sumption, UICC capability, and self-activation enablement. While Belmont contains cellular and comple-mentary wireless antennas, Verizon’s partners in this segment are expected to design their own antenna solutions for their commercial products.

Belmont Board

Belmont System Including Belmont board, Host board (STM Nucleo L476) and antennas

Public

Belmont 8 (23)


3 BLOCK DIAGRAM

Belmont board has Sequans LTE Cat-M1 module (VZM20Q) for LTE functionality. LTE module uses eSIM

initialized to Verizon network. The VZM20Q is a complete Verizon Wireless certified LTE Category M1 mod-

ule including base-band, RF and memory, for the design of connected machine-to-machine devices, and

other Internet-of-Things devices with embedded LTE connectivity.

GNSS is implemented using Sony CXD5600GF Multi GNSS receiver chipset supporting GPS and Glonass sys-

tems. The CXD5600GF is operated as I2C slave device. One additional GPIO pin in the CDX5600GF is used to

host board (Nucleo L476) as “data output request” in addition to SDA and SCL.

Belmont has standard Arduino interface which is used to connect it to commercial STM Nucleo L476RG

Host Board.

USB connector is used for power supply to Belmont. USB connector can be also used for re-flashing the LTE

module (VZM20Q) firmware.

Audio, 3-Axis sensor, Temp/Humidity and ALS sensors are optional modules.

The architecture block diagram of the Belmont is presented on figures below (Fig 1, Fig 2, Fig 3)

Public

Belmont 9 (23)


NUCLEO-L426RG Board

Multi-GNSS Receiver

Sony CXD560xGF

GNSS

Antenna

+3V3VDD_DCDC_IN

VDD_BKUP_IN

VDD_BKUP_BAT_IN

VDD_TCXO_IN

XOSC_IN

VDD_TCXO_OUT

VDD_IO_HOST

UART_TXD

UART_RXD

NRST

PC0 (GPIO)

TCXO

16.368MHz

LNA2_IN

SAW Filter

SAFFb1G58KA0F0A

LNA

BGA725L6

VDD_RF_OUT

GNSS_RESET

RTC_OSC_IN

RTC_OSC_OUT

Crystal

32.768kHz

Serial Flash

Winbond

W25Q80EW

CLK

DI

DO

CS

VCC

SPI_CE

SPI_CLK

SPI_IO1

SPI_IO0

VDD_PRPH_OUTVDD_PRPH_OUT

BOOT_MODE_0

BOOT_MODE_1

VIO

LDO_TCXO_VOL_SEL +3V3

PB5 (GPIO)

UART

NUCLEO Board

“Belmont” Board

External

AUDIO_RESET PA9 (GPIO)

+3V3

UART_CTS

GPIO0

GPIO1

SAW Filter

SAFFb1G58KA0F0A

CODEC

VLSI VS8063a

3-Axis Acc.

STM LIS2DE12

(Optional)

MIC

Analog MEMS

CMOE-

I110TM42-

4P

SPKR

8Ohm

STAR

NDT-03C

PB8 (I2C1_SCL)

PB9 (I2C1_SDA)

PA5 (SPI1_SCK)

PA8 (GPIO)

PA6 (SPI1_MISO)

PA7 (SPI1_MOSI)

SCLK

SDIN

SDOUTXDCS/XCS

SPKR_LEFT

GBUF

MICPLINE1

MICN

xRESET

SCL

SDA

I2C

+1V8

VIO

VDD

DVDDIO

OSC_IN

OSC_OUT

Crystal

12.288

MHz

SCL

SDA

I2C

I2C

SPI

SPKR_RIGHT

Arduino

Nucleo InterfacesBLOCKS

Not used

SA0

CS

INT1

INT2

+3V3VDDVDD_IO

Internal

TEMP

sensor

VIO

ACC_INT

VIO

PIN HEADER

PB10 (GPIO)

GNSS antenna

connector

U.FL

AMP

TPA2025

GNSS_DOR PC1 (GPIO)

DREQBSYNC

AUDIO_DREQ

PB0 (GPIO)

Analog audio i/f

with internal

volume ctrl

UART_RTS

GPIO1ENA

To USB converter

AVDDIO +3V3

LINE2

Humidity / Temperature

AMS ENS210

(Optional)

SCL

SDA

VDD

Ambient light

ROHM BH1721FVC

(Optional)

SCL

SDA

VDD

IO_REF

VIO

VIO

+3V3

To debug settings

From debug

+3V3_GPS_ANTENNA

(Optional for

active antenna)

+3V3

VBUS

Figure 1. Belmont system GNSS Block Diagram

Public

Belmont 10 (23)


LTE

Antenna

eSIM MFF2

Gemalto Avior 440

NUCLEO-L426RG Board LTE Cat M1 Module

Sequans VZM2xQ

PWR_EN

SIM_RSTn

SIM_CLK

SIM_IO

VSIM

Level Shifter

TXB0104 (2 pcs)

SIM_VCC

+3V7 VBAT1

VBAT1

VCC1_PA

VCC2_PA

VCC2_PA

RESET_N

POWER_MON

WAKE0

UART2_TXD

UART2_RXD

USART2_RTS

USART2_CTS

SIM_RSTN

SIM_CLK

SIM_IO

LTE_ANT

(GPIO) PC7

(GPIO) PB6

VCCB VCCA

LTE_PWR_EN

Po

rt A

Po

rt B

STATUS_LED

WAKE1

FFF-FFH

SIM_DETECT/GPIO

1V8_REF

+3V3

UART0_RTS

UART0_TXD

UART0_CLK/GPIO_19

UART0_CTS

UART1_TXD/GPIO14

1V8_LTE

1V8 or 3V

LTE_RESET

+1V8

SAR_DETECT/GPIO_42

POWER_SHDN/GPIO_40

RING0

1V8_LTE

Band B13

SAW filter

(GPS)

TDK

B9839

LTE antenna

connector

U.FL

3V0_13V0_2

JTAG_TDO

JTAG_TRSTN

JTAG_TMS

JTAG_TCKJTAG_TDI

ADC

UART1_RXD/GPIO15

UART0_RXD

UART1_CTS/GPIO_17

UART1_CLK/GPIO_38

UART1_RTS/GPIO_16

UART0_RINGOUT

USART2_CLK/GPIO26

VIO

+3V3

(GPIO) PA4

LED2

LED1

(USART3_TX) PC10

(USART3_RX) PC11

LTE_UART_TX

LTE_UART_RX

(GPIO) PB4

PIN HEADER

Button

BUTTON

(GPIO) PA0

(GPIO) PA1

User LEDs

To USB converterRX

TX

VIO

(GPIO) PF15

(GPIO) PA10 LTE_SW_RTS

LTE_SW_CTS

CTS

RTS

From debug

Figure 2. Belmont system LTE Module Block Diagram

SMPS

TI TPS62130PVIN

SW

+5VDC

EN

PWR CONN

USB Micro-B +3V7

LDO

TI TPS73633

IN

OUTEN +3V3

LDO

TI LP5907

IN OUT

EN

+1V8

VBUS

To Modem

UART2

DP

RX

TXUSB-to-UART

FTDI FT232

CTS

RTS

DM

Level shifter

To GNSS

UART

Used for firmware download to

modem.

TX

RX

RTS

CTS

LDO

TI TPS73633

IN

OUTEN +3V3_GPS_ANTENNA

Reset

generation

LTE_PWR_EN

LTE_RESETn

GNSS_NRST

Buffer

TX

RX

OE

_OE

BOOT_MODE0VDD_PRPH_OUT

VIO +3V3

GND OE

OE

VIO

Jumper settings

Debug interfaces

Belmont stand-alone only

Figure 3. Belmont system Powering and Flashing Block Diagram

Public

Belmont 11 (23)


4 TECHNICAL SPECIFICALS

General Interfaces Arduino (I2C, SPI, UART, UART)

USB

LTE and GNSS Antenna (u.FL)

Supported Frequency Bands LTE B13

GPS / Glonass

Operation voltages Vbus: 4.75V – 5.25V

VIO: 3.2V – 3.4V

Environmental RoHS compliant, halogen-free

Operating Temperature Operational: 0°C to +50°C

Humidity 10% to 85%

Table 2. General Specification

4.1 Electrical specification

4.1.1 Sequans VZM20Q LTE Module

Sequans VZM20Q module includes Monarch SQN3330 Cat-M1 baseband, a complete dual band RF front

end, memory and required circuitry to meet 3GPP E-UTRA (Long Term Evolution - LTE, Release 13 set of

specifications) and Verizon Wireless LTE Cat-M1 UE specifications

See more detailed Technical Specification Ref [1].

4.1.2 Sony CXD5600GF GNSS module

Sony CXD5600GF Multi GNSS receiver is compatible with Global Positioning System (GPS), Global Naviga-

tion Satellite System (GLONASS), Quasi-Zenith Satellite System (QZSS) and satellite-based augmentation

system (SBAS) and the Indoor Messaging System (IMES). Belmont system GNSS antenna is supporting GPS

and Glonass frequencies.

See more detailed technical specification Ref[2].

4.1.3 Giesecke & Devrient eSIM component

Giesecke & Devrient eSIM fulfils ETSI TS 102 671 V2.0.0 Rel.9 M2M UICC Physical and logical characteristics.

See more detailed specification Ref[3].

Public

Belmont 12 (23)


4.2 Absolute Maximum ratings

Parameter Symbol Min Max Unit

Supply voltage from USB connector Vbus -0.3 6.5 V

Supply voltage for I/O VIO -0.3 3.6 V

Voltage at I2C, SPI and I/O lines -0.3 VIO + 0.3 V

Operating temperature -30 +85 °C

Table 3. Absolute Max ratings

4.3 Recommended ratings and pin out

Parameter Symbol Min Typ Max Unit

Supply voltage from USB connect-or

Vbus 4.75 5.0 5.25 V

Supply voltage for I/O VIO 3.2 3.3 3.4 V

Supply voltage +3V7 3.7 V



Supply voltage +3V3_GPS_ANTENNA 3.3 V

I2C clock speed I2C_SCL 400 kHz

SPI clock speed, initialisation SPI_CLK 0.62 1.75 MHz

SPI clock speed, audio transfer

(CLKI = 5 x crystal)

SPI_CLK 5.0 8.78 MHz

UART0 baud rate 115200 Bits

UART2 baud rate 921600 Bits

Table 4. Recommended ratings and pin out

Public

Belmont 13 (23)


4.4 Connectors

4.4.1 Interface between Nucleo and Belmont

Interface between Nucleo L476RG and Belmont board are based on Arduino Uno pin out, but all signal lines

can be used as a general purpose I/O-line. Specification is compatible with Nucleo 64 boards and normally

used with NUCLEO L476RG board.

Pin out of Belmont board connectors X1, X22, X2, X4, X10, X9, X12 and X5:

Pin Nucleo-L476RG Belmont Belmont Nucleo-L476RG Pin

X10, X9 CN5

I2C_SCL PB8 (I2C1) 1

I2C_SDA PB9 (I2C1) 2

Not used AVDD 3

CN6 X1, X22

GND GND 4

1 NC Not used

SPI_SCK PA5 (SPI1) 5

2 IOREF VIO

SPI_MISO PA6 (SPI1) 6

3 RESET Not used

SPI_MOSI PA7 (SPI1) 7

4 3V3 Not used

LTE_PWR_EN PB6 8

5 5V Not used

LTE_RESET PC7 9

6 GND GND

AUDIO_RESET PA9 10

7 GND GND

X12, X5 CN9 8 VIN Not used

SPI_XCS PA8 1

CN8 X2, X4

ACC_INT PB10 2

1 PA0 LED1

LED2 PB4 3

2 PA1 RING0

GNSS_RESET PB5 4

3 PA4 BUTTON

LTE_SW_RTS PB3 5

4 PB0 not used

LTE_SW_CTS PA10 6

5 PC1 GNSS_DOR

LTE_UART_TX PC10 (USART3) 1 7

6 PC0 AUDIO_DREQ

LTE_UART_RX PC11 (USART3) 1 8 Table 5. Pin out of Belmont board connectors

1Need external wrap wires from CN7-1 to CN10-35 and from CN7-2 to CN10-37

Signal description of Belmont board connectors X1, X2, X10 and X12

Pins Signal Purpose

X1-2 VIO I/O voltage from Nucleo board. Recommended range is from 1.8V to 3.3V. Belmont power consumption is under 100mA.

X1-6,X1-7 X10-4

GND Ground

Public

Belmont 14 (23)


X2-1 LED1 I/O pin to control LED1. When high, LED1 is turned on.

X2-2 RING0 Wake-up signal from modem.

X2-3 BUTTON I/O-pin. There is external 10k pull-up on this line and switch S1 will ground the line when pressed.

X2-5 GNSS_DOR Data request from GPS. GPS receiver will indicate with this line, when data is available.

X2-6 AUDIO_DREQ Audio codec will indicate with this line, when new data can be written to output FIFO.

X10-1 I2C_SCL I2C serial clock. There is 4k7 external pull-up on Belmont board. Connected to GPS, Accelerometer, Ambient light sensor and Hu-midity & temperature sensor.

X10-2 I2C_SDA I2C serial data. There is 4k7 external pull-up on Belmont board. Connected to GPS, Accelerometer, Ambient light sensor and Hu-midity & temperature sensor.

X10-5 SPI_SCK Serial clock for SPI. Line is connected between Nucleo and audio codec and Nucleo acts as a master device.

X10-6 SPI_MISO Serial data from slave to master. Line is connected between Nu-cleo and audio codec and Nucleo acts as a master device.

X10-7 SPI_MOSI Serial data from master to slave. Line is connected between Nu-cleo and audio codec and Nucleo acts as a master device.

X10-8 LTE_PWR_EN I/O-line to enable/disable modem power up.

X10-9 LTE_RESET I/O-line which will reset modem, when low.

X10-10 AUDIO_RESET I/O-line which will reset audio codec, when low.

X12-1 SPI_XCS I/O-line which is used as SPI chip select. Connected from Nucleo to audio codec and will select the used SPI bus.

X12-2 ACC_INT Interrupt line from accelerometer. Optional, when accelerometer is used.

X12-3 LED2 I/O-line to control LED2. When high, LED2 is turned on.

X12-4 GNSS_RESET I/O-line which will reset GNSS system, when low.

X12-5 LTE_SW_RTS I/O-line used to wake-up modem and indicates that Nucleo is ready to receive data.

X12-6 LTE_SW_CTS I/O-line used to indicate that modem is waken up and ready to receive data.

X12-7 LTE_UART_TX UART tx line. This is used to transfer data from Nucleo to modem.

Public

Belmont 15 (23)


X12-8 LTE_UART_RX UART rx line. This is used to transfer data from modem to Nucleo.

Table 6. Signal description of Belmont board

4.4.2 Antenna connectors

U.FL connectors from Hirose are used as antenna connectors. Middle pin is signal line and outer ring used

as GND. Both connectors use 50 ohms transmission lines for the used bands.

4.4.3 USB

USB2.0 compatible Micro-B connector is used for feeding power to Belmont board and to download new

firmware for modem. Pin order is according to standard.

Pin number Signal description

X3-1 Vbus. +5VDC power source for Belmont board.

X3-2 DM data line, USB2.0 Full speed for FT232RQ

X3-3 DP data line, USB2.0 Full speed for FT232RQ

X3-4 ID, not used

X3-5 GND

Table 7. USB connector

Public

Belmont 16 (23)


5 MECHANICAL SPECIFICATION

Public

Belmont 17 (23)


6 ENVIORMENTAL SPECIFICATIONS

Dimensions (LxWxH) 52,6 x 55 x 18 mm

Environmental RoHS compliant, halogen-free

Operating Temperature 0°C to +50°C

Humidity 10% to 85%, non-condensing

Certifications FCC

CB Safety

GCF

Verizon OD

Power USB 2.0 Spec through an external power supply (USB power source)

Table 8. Environmental Spec

Public

Belmont 18 (23)


7 DESIGN CONSIDERATIONS

7.1 Connectors to Nucleo board

All signals are routed directly from the bottom side connector to the top side connector. On the Belmont

board, there are ESD clamping device connected to every used signal line. These circuits protect board

against light ESD strikes. On the Nucleo board, signal lines are not protected against ESD. Use device only in

area, where ESD does not exist.

7.2 Power

Belmont board will power up automatically after USB cable is inserted. Maximum power consumption of

the board is seen when TX power of the modem is at the maximum level and at the same time speaker

driven with full power. With this case, USB power source with 1A current capability is needed. Most of use

cases will take much less power. Power line is protected with a self-resettable fuse, which tripping current

is minimum 1.5A.

7.3 Audio

Audio codec is VS8063A from VLSI Solution. Crystal is selected to be 12.288MHz, which will enable the most

common data rates. Codec is controlled over SPI and I/O-lines which control reset and indicates data re-

quest are used. A pull-down resistor is connected to reset line to prevent that line is floating if not driven.

Microphone has a typical sensitivity of -42 dBV/Pa at 94dB SPL, 1kHz. Unity gain is used on the board and

signal level can be adjusted inside audio codec.

On the speaker path, TPA2025 amplifier is used. TPA2025 is capable of driving speakers with impedance

from 4 to 8 ohms. Amplifier has a fixed 20dB gain and volume level is controlled by setting suitable level

inside audio codec.

Speaker has a maximum drivel level of 0.8W at 1kHz sine wave. Typical output of the speaker is

90dB/0.5W/10cm.

Note: do not overdrive speaker, speaker may be damaged.

7.4 Modem

Two I/O-lines are used to control power-up of the modem. Recommendation is that LTE_PWR_EN is

switched high at minimum of 1ms after Belmont board is powered. LTE_RESET can be switched high at min-

imum of 1ms after LTE_PWR_EN has been risen. Both lines have external pull-down resistor to keep mo-

dem inactive, if lines are not controlled.

Note: naming of serial ports with this module reflects the purpose of the signal at the host processor.

Hence modem pin of RX is actually output and TX is input. Respectively RTS is input and CTS output.

Public

Belmont 19 (23)


7.5 GNSS

GNSS is controlled over I2C. Address of GNSS system is 0x0100 100xb, where x is read/write bit.

I/O-lines are used to reset GNSS and as an interrupt line. Reset is active low and external pull-down resistor

will keep GNSS to reset, if signal is not driven.

GNSS is normally used with passive antenna and hence +3.3V for active antenna is disabled. If better per-

formance is needed, active antenna can be taken to use by soldering L17 to the pads.

7.6 LEDs and Button

Design has two LEDs and one button for general use. If power to Belmont board is enabled before Nucleo

drives the I/O-lines, LED1 is off and LED2 is on.

Setting the I/O-line for mapped each LED to ‘1’, LED will be turned on.

I/O-line allocated for button has an external pull-up resistor and when button is pressed, line is connected

to GND. ESD diode and a small serial resistor is added to protect line against ESD. A small (1nF) capacitor is

used to filter signal against glitches.

7.7 Debug

FT232RQ USB-to-UART converter is used to connect UART2 of modem to PC. With the UART2, new firm-

ware can be downloaded to modem or other tools from modem manufacturer can be used. Refer to in-

structions from Sequans.

Inside the factory, interface is also used to download firmware to GNSS system.

Public

Belmont 20 (23)


8 ANTENNA CONSIDERATIONS

Antenova GNSS antenna (Ref [7]) and Pulse LTE antenna (Ref [6]) are used with Belmont system. Antennas

are connected to board using u.FL connector.

8.1 Antenna measurements

The following figure presents Pulse LTE antenna measurements:

The following figure presents Antenova GNSS antenna measurements (NOTE Antenova antenna need to be

checked, samples Bittium received doesn’t work correctly) :

Public

Belmont 21 (23)


8.2 GPS and LTE B13 interoperability

There is GPS band stop notch filter in LTE 13 antenna line on the Belmont board. The filter is recommended

to be used when GPS and LTE antennas are located near to each other.

LTE B13 and GPS interoperability measurement report (Ref[8]) shows the effect of the LTE13 to GPS func-

tionality without the notch filter. The summary of report is:

Few dB GPS RX desense can be observed under worst case test conditions (LTE13 configured to

worst “channel” + LTE13 max TX power + very low isolation between LTE and GPS antenna)

GPS fix was maintained also under worst case test conditions

GPS desense not observed when antennas were placed further apart from each other

GPS band notch filter in LTE13 antenna line is recommended also for next design rounds to ensure

good interoperability between LTE13 and GPS systems

Public

Belmont 22 (23)


9 CERTIFICATIONS (VERIZON)

FCC (FCC ID# TBD)

CB Safety (TBD)

GCF

Verizon OD

Public

Belmont 23 (23)


References

[1] Monarch Platform – VZM20Q Module

[2] Sony Multi GNSS Receiver CXD5600GF

[3] Giesecke & Devrient SkySIM Avior 440 SMD S3FS9FV Technical Specification

[4] Belmont Schematics

[5] Belmont Layout and PWB manufacturing files

[6] LTE Antenna specification: High Efficiency Wideband LTE Dipole Antenna (Pulse W3554)

[7] GNSS Antenna specification: Antenova Bentoni GNSS Antenna

[8] LTE B13 and GPS interoperability measurement report

belmont hw over- view - bittium

Documents