Daintree Networks DT357 DT357 ZIGBEE RF MODULE User Manual DN00DC0018 03 DT357

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Date Submitted	2012-01-06 00:00:00
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DT357 Series User Manual
Description
The DT357 and DT357-U.FL Daintree ZigBee® modules provide a cost-effective RF transceiver
solution for 2.4GHz Zigbee and IEEE 802.15.4 data links and wireless networks.
The modules are available either with an on-board chip antenna (DT357) or alternatively with a U.FL
connector (DT357-U.FL) for attaching an external antenna.
These modules have been designed to be easily integrated into another device and to provide a fast,
simple and low cost wireless mesh networking interface.
The DT357 series module is based on the Ember ZigBee® platform consisting of the EM357
combined with the ZigBee PRO compliant EmberZNet meshing stack. Integration into a wide range of
applications is made easy using a simple AT style command interface and advanced hardware
design.
Module Features
• Small physical footprint, SMD module 25mm x 19mm
• Integrated PCB chip antenna
• Optional U.FL connector for use with an external antenna
• -100dBm normal RX sensitivity
• Industry-leading ARM® Cortex™-M3 processor
• 16 RF Channels (Top channel 1A operates at a reduced power level)
• JTAG Programming and real time debugging via the Ember InSight Port
• Very low power consumption: less than 1uA in deep sleep mode.
• +3dBm nominal power output increased to 8dBm in boost mode.
• Wide supply voltage range (2.1 to 3.6V)
• 192kB flash and 12kbytes of RAM
• 24 GPIO lines
• FCC modular compliance.
• RoHS compliant
°
°
• Operating temperature range: -40 C to +85 C
Applications
• Wireless lighting controls
• Wireless alarms and security
• Home automation and control
• Building automation and control
• Security and monitoring
• Thermostats
• Traffic management
• General Zigbee wireless networking
Table of Contents
DT357 SERIES USER MANUAL ..................................................................................... 1
DESCRIPTION ................................................................................................................... 1
1. HARDWARE DESCRIPTION ...................................................................................... 3
2. ABSOLUTE MAXIMUM RATINGS ............................................................................. 4
3. RECOMMENDED OPERATING CONDITIONS ......................................................... 4
4. DC ELECTRICAL CHARACTERISTICS@ 25°C, VCC = 3.0V, NORMAL MODE UNLESS
OTHERWISE STATED ................................................................................................................ 4
5. DIGITAL I/O ................................................................................................................. 4
6. RF ELECTRICAL CHARACTERISTICS ...................................................................... 5
7. ENVIRONMENTAL CHARACTERISTICS .................................................................. 5
8. DT357 PIN DESCRIPTION ......................................................................................... 6
9. DT357 DIMENSIONS................................................................................................... 7
10. PCB KEEP-OUT AREAS ............................................................................................ 8
11. PRODUCT APPROVALS ........................................................................................... 9
11.1 FCC PART 15.247 CERTIFICATION ..................................................................................................................... 9
11.2 FCC LABELLING REQUIREMENTS ....................................................................................................................... 10
11.3 CANADA IC CERTIFICATION.............................................................................................................................. 10
11.4 EUROPEAN CERTIFICATION .............................................................................................................................. 10
1. Hardware Description
VBRD
24MHz
Ceramic
Balun
EM357
Harmonic
Chip Antenna Filter
I/O
RESET
JTAG
UART
A/D
BLOCK DIAGRAM OF DT357
VBRD
24MHz
Ceramic
Balun
U.FL Connector
EM357
Harmonic
Filter
I/O
RESET
JTAG
UART
A/D
BLOCK DIAGRAM OF DT357-UFL
PROCESSOR
The DT357 series module utilises an Ember EM357 S.O.C (System on Chip) which has an integrated
32-bit ARM® Cortex™-M3 processor, flash (196kB) and RAM (12kB) memory and peripherals. This
is interfaced by standard serial wiring (UART) and includes JTAG programming interface. This allows
for powerful software debugging and programming of the ARM Cortex ™-M3 core.
The EM357 has built in 1.8V and 1.25V regulators as well as a power-on-reset circuit which reduces
the amount of external circuitry required.
ANTENNA
The DT357 module includes an integrated chip antenna (Antenova Rufa) which is compact in size but
has a uni-directional radiation pattern allowing a gain of 2.1dBi. Further details of the antenna can be
found on the Antenova website.
The DT357-U.FL module includes a U.FL connector instead of a chip antenna that allows for the
connection of an external antenna up to a gain of 2.0dBi.
2. Absolute Maximum Ratings
Rating
Power Supply Voltage
Voltage on any Digital I/O
RF Input level
Storage Temperature Range
Value
Unit
3.6
-0.3 to VCC +0.3
15
-40 to +105
Vdc
Vdc
dBm
°C
Note: Exceeding the maximum ratings may cause permanent damage to the module or devices
3. Recommended Operating Conditions
Characteristic
Power Supply Voltage
Input Frequency
Operating Temperature
RF Input Power
Min
Typ
Max
2.1
2405
-40
3.6
2480
85
Unit
Vdc
MHz
°C
dBm
4. DC Electrical Characteristics@ 25°C, VCC = 3.0V, NORMAL MODE unless otherwise stated
Parameter
Ambient Temperature Range
Power Consumption
Transmit Mode at 3dBm Output Power
Transmit Mode at 8dBm Boost Output Power
Receive Mode
Standby Mode
Min
-40
Min
Typ
25
Typ
31
42
26.5
Max
85
Max
Unit
°C
Unit
mA
mA
mA
uA
Min
0.42 x Vcc
0.62 x Vcc
0.82 x Vcc
Typ
Max
0.5 x Vcc
0.8 x Vcc
0.18 x Vcc
Vcc
-0.5
0.5
40
Unit
uA
uA
uA
uA
uA
uA
mA
5. Digital I/O
Digital I/O
Logic Low Schmitt Input Switching Threshold
Logic High Schmitt Input Switching Threshold
Logic Low Output
Logic High Output
Output Sink Current (Std Pad)
Output Source Current (Std Pad)
Output Sink Current (High I Pad)
Output Source Current (High I Pad)
Input Current For Logic 0
Input Current For Logic 1
Total Output Current (I/O Pads)
6. RF Electrical Characteristics
Parameter
RF Frequency Range
RF Data Rate
Receive Characteristics
Receiver Sensitivity (1% PER) NORMAL
Receiver Sensitivity (1% PER) BOOST
High-Side Adjacent Channel Rejection
Low-Side Adjacent Channel Rejection
2nd High-Side Adjacent Channel Rejection
2nd Low-Side Adjacent Channel Rejection
Transmit Characteristics
Transmitter Output Power NORMAL
Transmitter Output Power BOOST
Minimum Output Power
Min
2400
Min
Min
Typ
250
Typ
-100
-102
35
35
46
46
Typ
-55
Max
2500
Max
-94
-96
Max
Unit
MHz
Kbps
Unit
dBm
dBm
dB
dB
dB
dB
Unit
dBm
dBm
dBm
7. Environmental Characteristics
Environmental Characteristics
ESD (human body model)
ESD (charged device model) Non-RF pins
ESD (charged device model) RF Pins
Moisture Sensitivity Level (MSL)
Min
Typ
Max
±2
±400
±225
MSL3
Unit
kV
8. DT357 Pin Description
Pin
No
Name
Direction
GND
PC5
PC6
PC7
GND
I/O, O
I/O, O
I/O, I
10
11
12
13
14
15
PA7
PB3
NRESET
PB4
PA0
PA1
PA2
PA3
GND
PA4
PA5
I/O, I, O
I/O, O, I
I/O, O, I
I/O, I, O
I/O, O, I
I/O, O, I
I/O, O, I
GND
I/O, O
I/O, An, O, I
16
17
PA6
PB1
I/O, O, I
I/O, O, I
18
PB2
I/O, I, O
19
20
21
22
23
24
25
GND
GND
JTCK
PC2
PC3
PC4
PB0
GND
GND
I, I/O
I/O, O
I/O, I
I/O, I
I/O, An, I, O
26
27
28
29
30
31
32
33
PC1
PC0
PB7
PB6
PB5
GND
VBRD
GND
I/O, An, O
I/O, I, O
I/O, An, I, O
I/O, An, I, O
I/O, An, I
GND
POWER
GND
Description
Digital I/O, Logic Control for External Rx/Tx switch
Digital I/O, 32.768 kHz OSC, Inverted TX_ACTIVE signal
Digital I/O, 32.768 kHz OSC, Digital 32.768 kHz Clock Input
source
Digital I/O, Timer 1 Ch4 Out/In, Ext Regulator Open drain Out
Digital I/O, Timer 2 Ch3 Out/In, UART CTS1, SPI1 MCLK/SCLK
Active Low Chip Reset
Digital I/O, Timer 2 Ch4 Out/In, UART RTS1, SPI Slave Select1
SPI2 MOSI, Timer 2 Ch1 Out/In
SPI2 MISO, Digital I/O, Timer 2 Ch3 Out/In, TWI SDA2
SPI2 MCLK/SCLK, Digital I/O, Timer 2 Ch4 Out/In, TWI SCL2
SPI2 Slave Sel, Digital I/O, CPU Trace Clk, Timer 2 Ch2 Out/In
Digital I/O, ADC In4, PTI Frame Signal, CPU Trace Data Bit 2
Digital I/O, ADC In5, PTI Data Signal, Embed Boot Activate, CPU
Trace 3
Digital I/O, Timer 1 Ch3 Out/In
UART1 Tx, Digital I/O, SPI1 MISO/MOSI, TWI SDA1, Timer2 Ch1
I/O
UART1 Rx, Digital I/O, SPI1 MISO/MOSI, TWI SCL1, Timer2 Ch1
I/O
JTAG CLK In Debug, SW CLK In/Out
Digital I/O, JTAG Data Out Debug, SW Out Debug
Digital I/O, JTAG Data In Debug
Digital I/O, JTAG Mode Sel, SW Data In/Out Debug
Digital I/O, ADC Ref Out/In, Ext IntA, CPU Clk Trace, Timer1 Ext
CLK In, Timer2 Clk Mask In
ADC In3, Digital I/O, SW Out Debug, CPU Trace Data Bit 0
Digital I/O, JTAG Reset In Debug, Ext IntD, CPU Trace Data Bit 1
Digital I/O, ADC In2, Ext IntC, Timer1 Ch2 Out/In
Digital I/O, ADC In1, Ext Int B, Timer1 Ch1 Out/In
Digital I/O, ADC In0, Timer2 Ext Clk In, Timer1 Ext Clk Mask In
Analogue Pad Supply (1.8V)
9. DT357 Dimensions
DT357
DT357-U.FL
Recommended PCB Footprint
10. PCB Keep-Out Areas
For optimum RF performance when using the DT357 module (Chip Antenna version) the module
should be placed so that the antenna is located on the edge of the mating PCB. No tracks or planes
or components should be located in the keep-out area. When using the DT357-UFL module (external
antenna version) the keep-out area does not need to be adhered to.
Keep Out Area for Chip Antenna (DT357 only)
11. Product Approvals
The DT357 and DT357-U.FL have been designed for modular compliance into USA (FCC), Canada
(IC), Australia (C-Tick) and Europe (CE). Full FCC, IC and C-Tick compliance have been obtained
and European compliance (CE) has been part completed with full compliance to follow in the future.
11.1 FCC Part 15.247 Certification
The DT357 and DT357-U.FL modules including the antennas listed in Table 1 below have been
tested and have been found to comply with FCC CFR Part 15 (USA). The DT357-U.FL has
compliance for an external antenna with a maximum gain of 2.0dBi.
To meet the section 12.209 emission requirements in the restricted bands of section 15.205, the
transceiver transmitter power for the DT357 and DT357-U.FL modules needs to be reduced from
8dBm to 7dBm on the top channel 1A (2480 MHz).
The software Daintree will release with the DT357 and DT357-U.FL modules will limit the end
user to a maximum of 7dBm on the top channel 1A (2480 MHz) to ensure compliance.
These devices meet the requirements for modular transmitter approval as detailed in the FCC public
notice DA00.1407.transmitter. These additional requirements can allow the DT357/DT357-U.FL
modules to be installed in a new device without subsequent new equipment authorisation to be
obtained.
This device complies with Part 15 of the FCC rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired operation.
Item
Part No
Manufacturer
Type
Gain
S131CL2-L-XXX2450
Nearson
1/2 Wave
2.0dBi
The Daintree DT357 and DT357-U.FL modules have been tested and found to comply with the limits
for a digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. The Daintree modules
generate, use and can radiate radio frequency energy and, if not installed and used in accordance
with the instructions, may cause harmful interference to radio communications. However there is no
guarantee that interference will not occur in a particular installation. If the Daintree module does
cause harmful interference to radio or television reception, which can be determined by turning the
Daintree module off and on, the user is encouraged to try and correct the interference by one or more
of the following measures:
•
•
•
•
Reorient or relocate the receiving antenna.
Increase the separation between the Daintree module and receiver.
Connect the Daintree module into an outlet on a circuit different from that to which the
receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
The DT357 and DT357-U.FL modules with their antennas comply with FCC/IC RF exposure limits for
general population/uncontrolled exposure.
While the applicant for a device into which the DT357 and DT357-U.FL with an approved antenna in
Table 1 is to be installed is not required to obtain a new authorization for the module, this does not
ensure that some other form of testing may be required for the end product.
Any changes or modifications made to this device that are not expressly approved by Daintree may
void the user's authority to operate the equipment.
When using the DT357-U.FL with approved antennae, it is required to prevent end-users from
replacing them with non-approved ones.
To comply with FCC and Industry Canada RF radiation exposure limits for general population
the antennas used for the DT357 and DT357-U.FL must be installed such that a minimum
separation distance of 20cm is maintained between the antenna and all persons at all times
and must not be co-located or operating in conjunction with any other antenna or transmitter.
11.2 FCC Labelling Requirements
When integrating the DT357 and DT357-U.FL into a product it is necessary that the FCC labelling
requirements are met. This includes a clearly visible label on the outside of the finished product
specifying the Daintree FCC identifier (FCC ID: Z6G-DT357) as well as the statement above. This
label can use wording such as “Contains Transmitter Module FCC ID: Z6G-DT357” or “Contains
FCC ID: Z6G-DT357” or similar words which convey the same information.
FCC ID: Z6G-DT357
11.3 Canada IC Certification
The DT357 and DT357-U.FL comply with Industry Canada License-exempt RSS standards.
•
•
•
Operation is subject to the following two conditions: 1) this device may not cause interference,
and 2) this device must accept any interference that may cause undesired operation of the
device.
To reduce potential radio interference to other users, the antenna type and its gain should be
so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than is
necessary for successful communication.
This radio transmitter DT357-U.FL has been approved by Industry Canada to operate with the
antennas listed in Table 1 with a maximum permissible gain of up to 2.0dBi. Antenna types
having a gain greater than the maximum gain indicated for that type are strictly prohibited for
use with this device. The antenna impedance required is 50 ohms.
The labelling requirements are similar to those of FCC. A visible label displaying the IC number must
be shown. The end user is responsible for the final product to comply with IC ICES-003
(Unintentional radiators).
11.4 European Certification
The DT357 and DT357-U.FL have been certified to the following standards:
• Radio: EN 300 328 v1.7.1 (10/2006)
• EMC: EN 301 489-17 v2.1.1 (09/2008). EN 301 489 compliance to be completed in the future.
The DT357 will be tested with its integrated chip antenna with a gain of 2.1dBi. The DT357-U.FL will
be tested with an antenna listed in Table 1 with a maximum gain of 2.0dBi.
The ‘CE’ marking must be applied to a visible location on the user’s product and must be legible. For
more information please refer to http://ec.europa.eu/enterprise/faq/ce-mark.htm. Customers assume
full responsibility for meeting the required guidelines for each country for their product distribution
market.
10

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Title                           : Microsoft Word - DN00DC0018-03 DT357 User Manual
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