User's Manual

CLASSIFICATION
Einstufung
PRODUCT SPECIFICATION
Produktspezifikation
No.
DS-ETR2-2400-102
REV.
D
SUBJECT
Thema
MODEM FOR IEEE802.15.4 (ZIGBEE)
“ZigBee” Modem“ (IEEE802.15.4)
PAGE
Seite 5 of 29
CUSTOMER’S CODE
ETRX2
PANASONIC’S CODE
ENWC9A0xyzE
DATE
Datum
01.08.2006
HIGH FREQUENCY PRODUCTS DIVISION
Module Business
PANASONIC ELECTRONIC DEVICES
(EUROPE) GmbH
APPROVED
genehmigt
CHECKED
geprüft
DESIGNED
erstellt
3. DESCRIPTION OF THE MODULE
Beschreibung des Moduls
ETRX2 contains the single chip EM250 [2] from Ember Inc., a 24MHz reference crystal and RF
frontend circuitry optimized for best RF performance. As single ended RF output the module is
available with integrated antenna or 50ohms or U.FL male socket [3] or 50 ohms pad terminal on
the bottom of the module.
Two additional hardware options are available on request:
3.1. ON BOARD DC REGULATOR
Although the EM250 already contains a dc regulator internally, the module can be
requested with an extra integrated onboard dc regulator. Some applications could benefit
from this additional regulator because as of for example:
(1) Further extension of the input voltage range or
(2) Extented battery life by replacing the regulator within EM250 by a special ultra low
quiescent current regulator or
(3) allowing for operation on very noisy power supplies
Two different types of regulators can be chosen, a linear low dropout (LDO) type or a high
efficiency switched buck regulator.
Depending on the power supply conditions of the application the optimum regulator can be
selected on demand.
3.2. ON BOARD REFERENCE CRYSTAL
A second option that is available is an on board 32,768kHz crystal reference. This option is
provided for applications that require a precision reference clock.
Where a precision 32,768kHz reference is already available on the applicationboard, it
could be fed to pin 4 instead and this option is not needed.
Please contact the manufacturer if one of the options could be useful for your product design.
ETRX2 is used for ZigBee
TM
(www.zigbee.org) applications working with
EmberZNet
TM
of Ember Inc. (www.ember.com). EmberZNet
TM
is a fully ZigBee
TM
compliant
networking stack. For code development Insight Desktop
TM
, a comprehensive
integrated development environment (IDE) and C-language compiler toolchain from
Ember Inc. is required. Insight Desktop
TM
is part of Ember development kits and
can currently be purchased together with programming adaptors as EM250 jumpstart kit at a
price of USD 2500,- directly from Ember Inc. (www.ember.com)
.