Enocean Tcm 310u User manual

USER MANUAL V1.2

EnOcean GmbH

Kolpingring 18a

82041 Oberhaching

Germany

Phone +49.89.67 34 689-0

Fax +49.89.67 34 689-50

info@enocean.com

www.enocean.com

Subject to modifications

TCM 310 / 310C / TCM 310U User Manual

July 28, 2014

Page 1/28

Patent protected:

WO98/36395, DE 100 25 561, DE 101 50 128,

WO 2004/051591, DE 103 01 678 A1, DE 10309334,

WO 04/109236, WO 05/096482, WO 02/095707,

US 6,747,573, US 7,019,241

Observe precautions! Electrostatic sensitive devices!

Transceiver Module

TCM 310 / TCM 310C / TCM 310U

July 22, 2014

USER MANUAL V1.2

TCM 310 / TCM 310C / TCM 310U

REVISION HISTORY

The following major modifications and improvements have been made to the first version of

this document:

Major Changes

1.00

Initial version

1.01

Modification for Step Code DB; increased number of filters and Smart Ack mail-

boxes

1.02

Supply voltage range extended

1.03

Start-up time and current consumption in deep sleep mode added in 2.2; im-

proved layout recommendations in 3.5

1.04

Antenna recommendations removed and referred to application note AN102 and

AN105; Maximum Rating for IOVDD modified (IOVDD may now exceed VDD); Ad-

ditional information in 3.6; Chapter “Related Documents” added; pin numbers

added in 3.2; update of FCC grant in 5.2; parameters for antenna requirements

relaxed in 4.2.1.;

1.05

Error in table in 3.2 corrected (pin 17 and 18 need to be connected to GND as

shown in figure above)

1.06

Supply voltage range extended; start-up time from sleep added

1.07

TCM 310U added

1.08

Mitsubishi Materials Chip Antenna added to limited modular approval

1.1

Updated power supply filter recommendation

1.15

Added Start-up Time Parameter, Changed Vmin

1.2

Duty cycle lock added in 3.6 and 5.1, and selective repeating added in 3.7

Published by EnOcean GmbH, Kolpingring 18a, 82041 Oberhaching, Germany

www.enocean.com, info@enocean.com, phone +49 (89) 6734 6890

Important!

This information describes the type of component and shall not be considered as assured characteris-

tics. No responsibility is assumed for possible omissions or inaccuracies. Circuitry and specifications

are subject to change without notice. For the latest product specifications, refer to the EnOcean web-

site: http://www.enocean.com.

As far as patents or other rights of third parties are concerned, liability is only assumed for modules,

not for the described applications, processes and circuits.

EnOcean does not assume responsibility for use of modules described and limits its liability to the

replacement of modules determined to be defective due to workmanship. Devices or systems contain-

ing RF components must meet the essential requirements of the local legal authorities.

The modules must not be used in any relation with equipment that supports, directly or indirectly,

human health or life or with applications that can result in danger for people, animals or real value.

Components of the modules are considered and should be disposed of as hazardous waste. Local

government regulations are to be observed.

Packing: Please use the recycling operators known to you.

USER MANUAL V1.2

TCM 310 / TCM 310C / TCM 310U

TABLE OF CONTENT

1MODULE VARIANTS AND RELATED DOCUMENTS ...............................................4

2GENERAL DESCRIPTION .................................................................................4

2.1 Basic functionality ......................................................................................... 4

2.2 Technical data...............................................................................................5

2.3 Physical dimensions.......................................................................................6

2.4 Environmental conditions ...............................................................................6

2.5 Ordering information...................................................................................... 6

3FUNCTIONAL DESCRIPTION............................................................................ 7

3.1 Pin out .........................................................................................................7

3.2 Pin description and operational characteristics...................................................7

3.2.1 GPIO supply voltage - IOVDD...................................................................... 8

3.3 Absolute maximum ratings (non operating) ......................................................8

3.4 Maximum ratings (operating)..........................................................................8

3.5 System environment...................................................................................... 8

3.6 Serial Interface .............................................................................................9

3.7 Built-in Repeater ......................................................................................... 10

3.8 Smart Acknowledge ..................................................................................... 11

3.9 Remote Management ................................................................................... 11

4APPLICATIONS INFORMATION....................................................................... 12

4.1 Transmission range ..................................................................................... 12

4.2 Antenna options .......................................................................................... 13

4.2.1 Overview................................................................................................ 13

4.2.2 Whip antenna ......................................................................................... 13

4.2.3 Helical antenna ....................................................................................... 14

4.2.4 Chip antenna (supplier: Mitsubishi Material, Type AM11DG-ST01) ................. 15

4.3 Recommendations for laying a whip antenna .................................................. 16

4.4 Power supply requirements........................................................................... 17

4.5 Layout recommendations ............................................................................. 17

4.5.1 Recommended foot pattern....................................................................... 18

4.6 Soldering information................................................................................... 21

4.7 Tape & Reel specification.............................................................................. 22

5AGENCY CERTIFICATIONS ............................................................................ 23

5.1 CE approval ................................................................................................ 23

5.2 FCC (United States) Certification ................................................................... 24

5.3 FCC Regulatory Statements ......................................................................... 26

5.4 IC (Industry Canada) Certification ................................................................. 27

5.5 Industry Canada Regulatory Statements ........................................................ 28

USER MANUAL V1.2

TCM 310 / TCM 310C / TCM 310U

1MODULE VARIANTS AND RELATED DOCUMENTS

This document describes operation of TCM 310 modules available in variations for following

frequencies:

TCM 310 : 868.300 MHz

TCM 310C: 315.000 MHz

TCM 310U: 902.875 MHz

In side this manual the following terms TCM 310x can be used interchangeably for any of

the above frequency.

This document describes operation of TCM 310x modules with their built-in firmware.

In addition we recommend following our application notes, in particular

AN101: Power Supply Layout –Layout considerations for Line-Power

AN102: Antenna Basics –Basic Antenna Design Considerations for EnOcean based

Products

AN105: 315 MHZ Internal Antenna Design –Considerations for EnOcean based Products

The specification of the serial protocol ESP3 can be found here:

http://www.enocean.com/en/enocean_modules/tcm-310/

2GENERAL DESCRIPTION

2.1 Basic functionality

TCM 310x is a SMD mountable radio transmitter mod-

ule enabling the realization of gateways for EnOcean

868 MHz, 315 MHz and 902 MHz radio systems. It pro-

vides a bi-directional radio interface and a bi-

directional serial interface. Radio messages are sent

transparently through the serial interface in both direc-

tions from and to an externally connected host proces-

sor or host PC. In addition control commands can be

sent from the host, e.g. to configure the repeater func-

tionality or to manage Smart Ack functions. TCM 310x

can act as postmaster for up to 20 bi-directional sen-

sors using Smart Ack technology.

Features

Smart Ack controller functionality

Transparent radio channel

Programmable repeater functionality (1 / 2 Level)

ESP3 support (EnOcean Serial Protocol V3)

Not API programmable!

USER MANUAL V1.2

TCM 310 / TCM 310C / TCM 310U

1) According to ISO/IEC 14543-3-10 2) @ 0.1% telegram error rate based on transmitted sub-telegrams

2.2 Technical data

Antenna

TCM 310 : external whip or 50 Ω antenna mountable

TCM 310C: external whip

TCM 310U: external whip or Helical antenna

Frequency

TCM 310 : 868.300 MHz (ASK)1)

TCM 310C: 315.000 MHz (ASK)1)

TCM 310U: 902.875 MHz (FSK)

Radio Standard

Enocean 868 MHz/315 MHz: ISO/IEC 14543-3-10

Data rate/Modulation type

125 kbps

Receiver Sensitivity (at 25 °C)

typ. –96 dBm (868.300 MHz) 2)

typ. -98 dBm (315.000 MHz) 2)

typ. -98 dBm (902.875 MHz) 2)

Conducted Output Power

typ. 3 dBm @ 315 and 868 MHz / 1 dBm @ 902.875 MHz

Power Supply

2.6V … 3.5 V

Start-up Time

<500ms

Serial Interface

UART

Current Consumption

Receive mode: 33 mA

Transmit mode: 24 mA

Dimensions of PCB

22x19x3 mm

Operating temperature

0 to +65 °C

Radio Regulations

R&TTE EN 300 220 (TCM 310) v.2.4.1

FCC CFR-47 Part 15 (TCM 310C / TCM 310U)

USER MANUAL V1.2

TCM 310 / TCM 310C / TCM 310U

2.3 Physical dimensions

TCM 310 (pads on bottom side of PCB!)

2.4 Environmental conditions

Operating temperature -0 °C … +65 °C

Storage temperature -40 °C … +85 °C

Storage temperature in tape & reel package -20 °C … +50 °C

Humidity 0% … 93% r.H., non-condensing

2.5 Ordering information

Type

Ordering Code

Frequency

TCM 310

S3003-K310

868.300 MHz

TCM 310C

S3033-K310

315.000 MHz

TCM 310U

S3053-K310

902.875 MHz

PCB Dimension 22 x 19 x 3.1 mm

Weight 1.9 g

Unless otherwise specified dimensions are in mm.

Tolerances:

PCB outline dimensions 0.2 mm

All other tolerances 0.1 mm

USER MANUAL V1.2

TCM 310 / TCM 310C / TCM 310U

3FUNCTIONAL DESCRIPTION

3.1 Pin out

The figure above shows the pin out of the TCM 310x hardware.

3.2 Pin description and operational characteristics

HW Symbol

Pin #

Function

Characteristics

GND

1, 5, 7, 17, 18,

24, 26, 28, 31

Ground connection

Must be connected to GND; see 4.4

VDD

Supply voltage

2.6 V … 3.5 V

RVDD

RF supply voltage

regulator output

Leave open

DVDD

Digital supply volt-

age

regulator output

1.8 V

Output current: max. 5 mA

IOVDD

GPIO supply volt-

age

Must be connected to desired inter-

face supply voltage (see 3.4) See

also 3.2.1.

RESET

Reset input

External 10 kΩ pull-down required.

SER_RX

UART input

See 3.6

SER_TX

UART output

See 3.6

RF_WHIP

RF output

Output for whip antenna

RF_50

RF output

50 Ohm output for external antenna

n.c.

3, 9-14, 19-22,

29,30, 32-34

Not connected

Do not connect!

EO3000I

Antenna

balun

XTAL

16MHz

TCM310/310C

TOP VIEW

DVDD

RVDD

n.c.

IOVDD

n.c.

RESET

n.c.

SER_RX

SER_TX

GND

n.c.

GND

RF_50

RF_WHIP

n.c.

VDD

GND

918

USER MANUAL V1.2

TCM 310 / TCM 310C / TCM 310U

3.2.1 GPIO supply voltage - IOVDD

For digital communication with other circuitry the pins of the serial interface UART may be

operated from supply voltages different from DVDD. Therefore an interface voltage supply

pin IOVDD is available which must be connected either to DVDD or to an external supply

within the tolerated voltage range of IOVDD.

If DVDD=0 V (e.g. in any sleep mode or if VDD<VOFF) and IOVDD is supplied,

there may be unpredictable and varying current from IOVDD caused by internal

floating nodes. It must be taken care that the current into IOVDD does not exceed

10 mA while DVDD=0 V. If DVDD=0 V and IOVDD is not supplied, do not apply

voltage to any above mentioned pin. This may lead to unpredictable malfunction

of the device.

IOVDD voltage must not exceed VDD voltage! A malfunction of the module may be

caused by such inverse supply!

3.3 Absolute maximum ratings (non operating)

Symbol

Parameter

Min

Max

Units

VDD

Supply voltage at VDD

-0.5

5.5

IOVDD

GPIO supply voltage

-0.5

3.6

GND

Ground connection

VIND1

Voltage at RESET, and UART

-0.5

3.6

3.4 Maximum ratings (operating)

Symbol

Parameter

Min

Max

Units

VDD

Supply voltage at VDD

TCM 310

2.6

3.5

IOVDD

GPIO supply voltage (see also 3.2.1)

1.7

3.6

GND

Ground connection

VIND1

Voltage at RESET, and UART

3.6

VDDR

Max. ripple at VDD

mVpp

3.5 System environment

In the figure below, TCM 310x is shown in a typical system environment.

USER MANUAL V1.2

TCM 310 / TCM 310C / TCM 310U

3.6 Serial Interface

TCM 310x provides a bi-directional serial interface which conforms to the EnOcean ESP3

specification. For details regarding ESP3 please refer to the ESP3 specification1. The data

rate on the serial interface is 58.8 kbit/s which is usually interoperable with systems run-

ning at 57.6 kbit/s.

Direction

Nominal serial data rate

Tolerance

TX (sent by module)

58823 bit/s (=57600 bit/s + 2.1%)

< 50 ppm

RX (received by module)

58823 bit/s

< 5%

The following ESP3 commands are supported:

Type 1 Radio command for transparent mode

Type 2 Responses

Type 4 Event

oSA_CONFIRM_LEARN to confirm/discard learn in/out

oCO_READY to indicate wake up from deep sleep initiated by CO_WR_SLEEP

oCO_DUTYCYCLE_LIMIT to inform about a current limitation due to duty cycle

Type 5 Common commands

oCO_WR_SLEEP to enter energy saving mode (deep sleep mode)

oCO_WR_RESET to reset the device

oCO_RD_VERSION to read SW/HW versions, chip ID etc.

oCO_RD_SYS_LOG to read system log from device data base

oCO_WR_SYS_LOG to reset system log from device data base

oCO_WR_BIST to perform flash BIST operation

oCO_WR_IDBASE to write ID range base number

oCO_RD_IDBASE to read ID range base number

oCO_WR_REPEATER to configure repeater functionality

oCO_RD_REPEATER to read repeater state

oCO_WR_FILTER_ADD to add filter to filter list or to selective repeating

(up to 30 filters are supported)

oCO_WR_FILTER_DEL to delete filter from filter list or from selective repeating

oCO_WR_FILTER_DEL_ALL to delete all filter

oCO_WR_FILTER_ENABLE to enable/disable supplied filters

oCO_RD_FILTER to read supplied filters

oCO_WR_WAIT_MATURITY to wait maturity time before returning radio telegrams

oCO_WR_MEM for writing into memory

oCO_RD_MEM for reading memory

oCO_RD_MEM_ADDRESS to get addresses of special areas

oCO_RD_DUTYCYCLE_LIMIT to read information about current duty cycle limitations

Type 6 Smart Acknowledge commands

oSA_WR_LEARNMODE to set/reset Smart Acknowledge learn mode

oSA_RD_LEARNMODE to get learn mode

oSA_WR_LEARNCONFIRM to add or delete a mailbox of a client

oSA_WR_RESET to send a reset command to a client

oSA_RD_LEARNEDCLIENTS to get learned mailboxes/clients

oSA_WR_POSTMASTER to activate/deactivate post master functionality

Type 7 Remote Management messages up to 256 Bytes

1http://www.enocean.com/en/enocean_modules/tcm-310/

USER MANUAL V1.2

TCM 310 / TCM 310C / TCM 310U

3.7 Built-in Repeater

TCM 310x provides the option to activate a one or two-level repeater for EnOcean radio

telegrams.

1-level repeater: If a received telegram is a valid and original (not yet repeated), the tele-

gram is repeated after a random delay. This delay will be chosen such that the maximum

TX maturity time (as standardized in ISO 14543-3-10) of 40ms will not be exceeded.

2-level repeater: If a received telegram is valid and original or repeated once, the telegram

is repeated after a random delay. This delay will be chosen such that the maximum TX ma-

turity time (as standardized in ISO 14543-3-10) of 40ms will not be exceeded.

Repeated telegrams are marked as “repeated” by an increased repeater counter. Configura-

tion of the repeater functionality is done via serial interface commands.

For detailed recommendations regarding the usage of repeaters please refer to our applica-

tion note EnOcean Wireless Systems - Installation Notes (PDF), 09/2010.

TCM310x also provides selective repeating. It is possible to add filters and these will be

applied during repeating. Selective repeating can be done based on:

Sender ID

Destination ID

RORG

dBm value

It is possible to define white lists or black lists for selective repeating and for filtering of

received radio telegrams passed via ESP3 independently.

All configuration values set via ESP3 commands are held in RAM and will therefore

be lost after RESET or after a deep sleep phase. Only Smart Ack mailboxes are

stored in FLASH and are available also after RESET or a deep sleep phase.

After sending a CO_WR_RESET command, the following CO_READY event indi-

cates wake up reason 06 meaning ”A memory request from the CPU core does not

correspond to any valid memory location.” This is caused by the real reset cause

used when CO_WR_RESET will be performed. It is not a SW/HW malfunction.

When using repeaters, care must be taken to ensure that regulatory transmitter

duty cycle limits (if applicable) are not exceeded.

2-level repeating function should only be activated after careful study of the radio

conditions! Otherwise the system function can be compromised by collisions of

telegrams.

USER MANUAL V1.2

TCM 310 / TCM 310C / TCM 310U

3.8 Smart Acknowledge

TCM 310x provides a post master function with 20 mailboxes for sensors using Smart Ac-

knowledge technology. For more information on smart acknowledge please refer to the

EnOcean End Equipment Profiles (EEP) 2.6 specification.

When teaching-in a device using Smart Acknowledge please take care to switch off

all TCM 3xy devices which are not continuously powered. Otherwise these TCM

3xy modules could be declared postmaster.

If power supply to such postmaster will be switched off then Smart Acknowledge

would not work due to the absence of the postmaster.

Smart Ack radio telegrams will be received and internally processed (post master,

mailbox, etc.). There is no forwarding of such telegrams to the serial ESP3 inter-

face.

3.9 Remote Management

TCM 310x provides a transparent radio channel also for remote management messages

with a message length of up to 256 bytes. This enables an external micro controller con-

nected to TCM 310 to handle remote management request from external devices or to con-

trol other devices via remote management.

For more information on remote management please refer to the EnOcean End Equipment

Profiles (EEP) 2.5 specification.

USER MANUAL V1.2

TCM 310 / TCM 310C / TCM 310U

4APPLICATIONS INFORMATION

4.1 Transmission range

The main factors that influence the system transmission range are type and location of the

antennas of the receiver and the transmitter, type of terrain and degree of obstruction of

the link path, sources of interference affecting the receiver, and “dead” spots caused by

signal reflections from nearby conductive objects. Since the expected transmission range

strongly depends on this system conditions, range tests should categorically be performed

before notification of a particular range that will be attainable by a certain application.

The following figures for expected transmission range are considered by using a PTM, a

STM or a TCM radio transmitter device and the TCM radio receiver device with preinstalled

whip antenna and may be used as a rough guide only:

Line-of-sight connections: Typically 30 m range in corridors, up to 100 m in halls

Plasterboard walls / dry wood: Typically 30 m range, through max. 5 walls

Line-of-sight connections: Typically 30 m range in corridors, up to 100 m in halls

Ferro concrete walls / ceilings: Typically 10 m range, through max. 1 ceiling

Fire-safety walls, elevator shafts, staircases and supply areas should be considered as

screening.

The angle at which the transmitted signal hits the wall is very important. The effective wall

thickness –and with it the signal attenuation –varies according to this angle. Signals

should be transmitted as directly as possible through the wall. Wall niches should be

avoided. Other factors restricting transmission range:

Devices mounted on metal surfaces (shielding and detuning of antenna may cause heavy

loss of transmission range)

Hollow lightweight walls filled with insulating wool on metal foil

Suspended ceilings with panels of metal or carbon fibre

Lead glass or glass with metal coating, steel furniture

The distance between EnOcean receivers and other transmitting devices such as com-

puters, audio and video equipment that also emit high-frequency signals should be at least

0.5 m

A summarized application note to determine the transmission range within buildings is

available as download from www.enocean.com.

USER MANUAL V1.2

TCM 310 / TCM 310C / TCM 310U

4.2 Antenna options

4.2.1 Overview

Several antenna types have been investigated by EnOcean. Please refer to our application

notes AN102, and AN105 which give an overview on our recommendations.

All TCM 310x modules have been approved with whip antenna, and TCM 310U with helical

antenna in addition.

868.300 MHz modules used in Europe do not need additional approval if alternative used

external antenna fulfils the following requirements:

Frequency

band

868.300 MHz

ISM

Antenna must be suited for this band

Antenna type

Passive

Mandatory for radio approval

Impedance

~50 Ohm

Mandatory for radio approval

Maximum gain

≤ 0 dBd

Mandatory for radio approval

In addition it is important to fulfill the following requirements in order to achieve compati-

bility with other EnOcean products and to ensure excellent EMI robustness:

VSWR

≤ 3:1

Important for compatibility with EnOcean protocol

Return Loss

> 6 dB

Important for compatibility with EnOcean protocol

Bandwidth

≤ 20 MHz

Important if 10 V/m EMI robustness required for device

For 315 MHz / 902.875 MHz modules (TCM 310C / TCM 310U) please note

that a full approval is needed if modules are used with antennas other than

the specified antennas.

4.2.2 Whip antenna

315 MHz

Antenna: 150 mm wire, connect to RF_WHIP

Minimum GND plane: 50 mm x 50 mm

Minimum distance space: 10 mm

868.3 MHz

Antenna: 86 mm wire, connect to RF_WHIP

Minimum GND plane: 38 mm x 18 mm

Minimum distance space: 10 mm

902.875 MHz

Antenna: 64 mm wire, connect to RF_WHIP

Minimum GND plane: 50 mm x 50 mm

Minimum distance space: 10 mm

USER MANUAL V1.2

TCM 310 / TCM 310C / TCM 310U

4.2.3 Helical antenna

315 MHz

please contact EnOcean for availability

868.3 MHz

according to drawing below, connect to RF_WHIP

please contact EnOcean for MOQ

Minimum GND plane: 35 mm x 30 mm

Minimum distance space: 10 mm

902.875 MHz

limited modular approval available

please contact EnOcean for MOQ and mandatory limited modular approval user agreement

according to drawing below, connect to RF_WHIP

Minimum GND plane: 35 mm x 30 mm

Minimum distance space: 10 mm

USER MANUAL V1.2

TCM 310 / TCM 310C / TCM 310U

4.2.4 Chip antenna (supplier: Mitsubishi Material, Type AM11DG-ST01)

315 MHz

Modular approval not available. Range and gain significantly reduced because of antenna

size vs. the wavelength. Small chip antennas at this frequency may be suited for space-

constrained applications. Check with supplier for matching circuit and board design guide-

lines. Supplier can make recommendations or do testing to optimize individual PCB design.

868.3 MHz

Additional matching circuit and proper board design is required.

Check with supplier for matching circuit and board design guidelines.

Connect matching circuit to RF_50 using 50 Ohm strip lines. Please follow 902 MHz board

design recommendations and dimensions. Be aware that matching values differ!

902.875 MHz

Limited modular approval is available. Please contact EnOcean to sign the mandatory lim-

ited modular approval user agreement. Dimensions may not be shortened. Matching circuit

is part of the limited modular approval and may not be changed. Minimum top and bottom

side ground plane required as shown below. Connect ground planes using multiple via as

shown. Connect matching circuit to RF_50. Use High Q wire wound inductors, e.g. 0603

Murata LQW18A series. Matching circuits values: L1 = 3.9 nH; L2 = 33 nH, L3 = 12 nH.

This antenna evaluation board is available upon request for use with EnOcean EDK 350 de-

veloper kit.

For any further questions or chip antenna quotes, please refer to Mitsubishi Materials web-

site at www.mmea.com or email to electroniccomponents@mmus.com.

USER MANUAL V1.2

TCM 310 / TCM 310C / TCM 310U

4.3 Recommendations for laying a whip antenna



Antenna too close

to GND area

Antenna end led

back to foot point



PCB

with

GND

PCB

without

GND



Antenna

too

to GND

area

USER MANUAL V1.2

TCM 310 / TCM 310C / TCM 310U

4.4 Power supply requirements

In order to provide a good radio performance, great attention must be paid to the power

supply and a correct layout and shielding. It is recommended to place a 22 µF ceramic ca-

pacitor between VDD and GND close to the module (material: X5R, X7R, min 6.3 V to avoid

derating effects).

In addition, an HF SMD EMI Suppression Ferrite Bead such as the Würth WE-CBF HF SMD

EMI Suppression Ferrite Bead (Würth order number 742863160) shall be inserted in the

power supply line.

For best performance it is recommended to keep the ripple on the power supply rail below

10 mVpp (see 3.4).

All GND pins must be connected to GND. Be careful not to create loops! The

ground must be realized ideally on both sides of the PCB board with many vias. At

least there must be a short star connection. Otherwise RF performance can be

reduced!

4.5 Layout recommendations

The length of lines connected to I/Os should not exceed 5 cm.

It is recommended to have a complete GND layer in the application PCB, at least

in the area below the module and directly connected components (e.g. mid-layer

of your application PCB).

Due to unisolated test points there are live signals accessible on the bottom side

of the module.

Please follow the following advices to prevent interference with your application

circuit:

We suggest avoiding any copper structure in the area directly underneath

the module (top-layer layout of your application PCB). If this is not possible

in your design, please provide coating on top of your PCB to prevent short

circuits to the module. All bare metal surfaces including vias have to be

covered (e.g. adequate layout of solder resist).

It is mandatory that the area marked by the circle in the figure below is

kept clear of any conductive structures in the top layer and 0.3 mm below.

Otherwise RF performance will be degraded!

Furthermore, any distortive signals (e.g. bus signals or power lines) should not be

routed underneath the module. If such signals are present in your design, we sug-

gest separating them by using a ground plane between module and these signal

lines.

USER MANUAL V1.2

TCM 310 / TCM 310C / TCM 310U

4.5.1 Recommended foot pattern

Top layer

USER MANUAL V1.2

TCM 310 / TCM 310C / TCM 310U

Solder resist top layer

USER MANUAL V1.2

TCM 310 / TCM 310C / TCM 310U

Solder paste top layer

The data above are also available as EAGLE library.

In order to ensure good solder quality a solder mask thickness of 150 µm is recommended.

In case a 120 µm solder mask is used, it is recommended to enlarge the solder print. The

pads on the solder print should then be 0.1 mm larger than the pad dimensions of the

module as specified in chapter 2.3. (not relative to the above drawing).

Nevertheless an application and production specific test regarding the amount of soldering

paste should be performed to find optimum parameters.

Table of contents

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