Telit Wireless Solutions FN990 TLB Guida

FN990 TLB

HW Design Guide

1VV0301753 Rev. 1 – 2022-04-22

Telit Technical Documentation

FN990 TLB Hardware Design Guide

1VV0301753 Rev. 1 Page 2of 33 2022-04-22

Not Subject to NDA

APPLICABILITY TABLE

PRODUCTS

Description

FN990A28 3G / 4G / Sub-6 cellular module

FN990A40 3G / 4G / Sub-6 cellular module

FN990 TLB Hardware Design Guide

1VV0301753 Rev. 1 Page 3of 33 2022-04-22

Not Subject to NDA

CONTENTS

APPLICABILITY TABLE 2

CONTENTS 3

1. INTRODUCTION 5

Scope 5

Audience 5

Contact Information, Support 5

Symbol Conventions 5

Related Documents 6

2. GENERAL PRODUCT DESCRIPTION 7

Overview 7

TLB View 8

TLB Description 10

Jumper Setting Guidelines 14

Antenna Ports 15

PCIe 15

2.6.1. End Point 15

2.6.2. Root Complex 16

Guidance for Evaluation Board 18

2.7.1. Bypass Setting 18

2.7.1.1. Jumper Setting for Bypass Mode 18

2.7.2. 6-15V Setting 19

2.7.2.1. Guidelines of ECO for 3.3V Output 20

3. COMPONENT ASSEMBLY DIAGRAM 21

Layout 23

4. SCHEMATICS 25

5. CHANGE LIST 26

6. PRODUCT AND SAFETY INFORMATION 27

Copyrights and Other Notices 27

6.1.1. Copyrights 27

FN990 TLB Hardware Design Guide

1VV0301753 Rev. 1 Page 4of 33 2022-04-22

Not Subject to NDA

6.1.2. Computer Software Copyrights 27

Usage and Disclosure Restrictions 28

6.2.1. License Agreements 28

6.2.2. Copyrighted Materials 28

6.2.3. High Risk Materials 28

6.2.4. Trademarks 29

6.2.5. Third Party Rights 29

6.2.6. Waiwer of Liability 29

Safety Recommendations 30

7. GLOSSARY 31

8. DOCUMENT HISTORY 32

FN990 TLB Hardware Design Guide

1VV0301753 Rev. 1 Page 5of 33 2022-04-22

Not Subject to NDA

1. INTRODUCTION

Scope

This document describes the FN990 TLB which is part of complete FN990 Development

Kit (Dev-Kit)

Audience

This document is intended for system integrators that are using the Telit module in their

product.

Contact Information, Support

For technical support please e-mail:

•

TS-[email protected]

•

TS-[email protected]om

•

TS-APAC@telit.com

•

TS-SRD@telit.com

Alternatively, use:

https://www.telit.com/contact-us/

For more information visit:

https://www.telit.com

Symbol Conventions

Danger:

This information MUST be followed or catastrophic

equipment failure or personal injury may occur.

Warning: Alerts the user on important steps about the module

integration.

FN990 TLB Hardware Design Guide

1VV0301753 Rev. 1 Page 6of 33 2022-04-22

Not Subject to NDA

Note/Tip:

Provides advice and suggestions that may be useful when

integrating the module.

Electro-static Discharge:

Notifies the user to take proper grounding

precautions before handling the product.

Table 1: Symbol Conventions

All dates are in ISO 8601 format, that is YYYY-MM-DD.

Related Documents

•FN990 HW User Guide, 1VV0301752

•Telit EVB 2.0 HW User Guide, 1VV0301732

•FN990 AT Commands Reference Guide, 80691ST11097A

FN990 TLB Hardware Design Guide

1VV0301753 Rev. 1 Page 7of 33 2022-04-22

Not Subject to NDA

2. GENERAL PRODUCT DESCRIPTION

Overview

The Translation Board (TLB) is custom designed to interface the variant of the Telit FN990

module with the Telit Generic Evaluation Board (EVB) thus forming the complete

Development Kit of FN990.

The TLB provides the mapping of Telit module signals and functions into the generic EVB

signals and functions.

The TLB design of the FN990 TLB includes the following items:

•FN990 module

•RF SMA connectors

•Board to Board connectors for interfacing to EVB main board

•Module specific circuitry which is not part of the generic circuitry of the EVB

The TLB also plans to assemble a custom designed module socket instead of assembling

the module.

The Power supply and control interface for the RF module is provided by the EVB via the

B2B connectors.

The bottom plane solder-mask is cutout under the RF module to optimally

mount/connect a heatsink with the aim to cool the module via the many heat conducting

GND via’s.

The board is designed to accommodate new modules according to the updated pin

mapping of the FN990 (52.0 x 30.0 x 2.25mm, +/- 0.15 mm tolerance and 75 pins).

Board

PCB Code

TLB

CS2146A-D

EVB 1.1

CS1984C

EVB 2.0

CS2125 or CS2148

Module

CS2170x

Table 2: Latest PCB reference numbers

FN990 TLB Hardware Design Guide

1VV0301753 Rev. 1 Page 8of 33 2022-04-22

Not Subject to NDA

TLB View

The below pictures show the TLB top and bottom view.

FN990 TLB Top View

Figure 1: TLB Top View

FN990 TLB Hardware Design Guide

1VV0301753 Rev. 1 Page 9of 33 2022-04-22

Not Subject to NDA

FN990 TLB Bottom View

Figure 2: TLB Bottom View

FN990 TLB Hardware Design Guide

1VV0301753 Rev. 1 Page 10 of 33 2022-04-22

Not Subject to NDA

TLB Description

Figure 3: TLB Description

(1) 1V8 AUX Power (PL216)

Figure 4: 1V8 AUX Power Default Jumper

The Jumper PL216 provides 1.8V I/O power for TLB circuit through external LDO.

Place jumpers on PL216 2-3(L) as shown Figure 5.

If PL216 1(P)-2 connected, FN990 internal power VREG_L6M_1P8 will be

supplied to TLB circuit.

(2) VBATT AUX Power (PL215)

The Jumper PL215 provides VBATT power for TLB circuit

Place jumpers on PL215 as default.

(3) PCIe Host Power (PL301/PL302)

wVBATT AUX Power (PL215)

q1V8 AUX Power (PL216)

e PCIe Host Power (PL301/PL302)

oUSB/PCIe Switch (SW201)

yWLAN Disable (PL201/PL217)

tPCIe 64 pin ConnectorrUSB 3.1 gen 2 Type C (PL214)

1) Power ON/OFF Switch (SW203)

iJumper for Other Model (PL214)

uLEDs (DL202/DL201)

1! Test Points for GPIOs

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