GMM-U1 Datasheet, PDF(33/36 Page) List of Unclassifed Manufacturers

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GMM-U1 Datasheet, PDF (33/36 Pages) List of Unclassifed Manufacturers – GPS Module

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GlobalTop Technology

Gmm-u1 Data Sheet

33 Ver. V0G

Details

Suggestions

Notes

5 Before handling the PCBA, they must 1. Can use electric

be cooled to 35Â°C or below after they fans behind the

have gone through the reflow-

Reflow machine to

soldering process, in order to prevent cool them down.

positional shift that might occur when

the module is still hot.

2. Cooling the PCBA

can prevent the

module from shifting

due to fluid effect.

It is very easy to cause

positional offset to the

module and its patch

antenna when handling the

PCBA under high

temperature.

6 1. When separating the PCBA panel 1. The blade and the 1. Test must be performed

into individual pieces using the V-Cut patch antenna must first to determine if V-Cut

process, special attentions are

have a distance gap process is going to be used.

needed to ensure there are sufficient greater than 0.6mm. There must be enough

gap between patch antennas so the

space to ensure the blade

patch antennas are not in contact with 2. Do not use patch and patch antenna do not

one another.

antenna as the

touch one another.

leverage point when

2. If V-Cut process is not available

separating the panels 2. An uneven amount of

and the pieces must be separated

by hand.

manual force applied to the

manually, please make sure the

separation will likely to

operators are not using excess force

cause positional shift in

which may cause rotational offset to

patch antenna and module.

the patch antennas.

7 When separating panel into individual Use tray to separate

pieces during latter half of the

individual pieces.

production process, special attentions

are needed to ensure the patch

antennas do not come in contact with

one another in order to prevent

chipped corners or positional shifts.

It is possible to chip corner

and/or cause a shift in

position if patch antennas

come in contact with each

other.

Note: References to patch antenna is referred to GPS modules with integrated Patch-on-top

antennas (PA/Gms Module Series), and may not be applicable to all GPS modules.

This document is the exclusive property of GlobalTop Tech Inc. and should not be distributed, reproduced, into any other format without

prior permission of GlobalTop Tech Inc. Specifications subject to change without prior notice.

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