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ZigBit™ Amp OEM Modules
ZDM-A1281-PN/PN0
R
EVISION
2.1
Ultra-Compact 2.4GHz 802.15.4/ZigBee Modules
with Power Amplifier
for Wireless Networking Applications
Product Datasheet
D
OC
.
M-251~03
V
.2.1
WWW.MESHNETICS.COM
D
ECEMBER
2007
©
2007
M
ESH
N
ETICS
ZigBit™ Amp
OEM Modules
Product Datasheet
Table of Contents
Summary ............................................................................................................................................................. 3
Applications ........................................................................................................................................................ 3
Key features ........................................................................................................................................................ 3
Benefits................................................................................................................................................................ 3
ZigBit™ Amp Module Overview ........................................................................................................................ 4
Specifications ..................................................................................................................................................... 5
Absolute Maximum Ratings*** .......................................................................................................................... 6
Physical/Environmental Characteristics and Outline ..................................................................................... 7
Pin Configuration................................................................................................................................................ 8
Mounting Information....................................................................................................................................... 12
Soldering Profile ............................................................................................................................................... 12
Antenna Reference Design .............................................................................................................................. 13
Related Documents .......................................................................................................................................... 13
Ordering Information........................................................................................................................................ 14
Disclaimer.......................................................................................................................................................... 15
Trademarks ....................................................................................................................................................... 15
Technical Support ............................................................................................................................................ 15
Contact Information.......................................................................................................................................... 15
© 2007 MeshNetics
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ZigBit™ Amp
OEM Modules
Product Datasheet
Summary
ZigBit™Amp stands for ultra-compact, extended range, low-powered, high-sensitivity 2.4GHz 802.15.4/ZigBee OEM
modules from MeshNetics. Based on the innovative Atmel’s mixed-signal hardware platform, these modules are
enhanced by an output power amplifier and an input low-noise amplifier. They are designed for wireless sensing,
monitoring & control and data acquisition applications. The ZigBit Amp modules eliminate the need for costly and
time-consuming RF development, and shorten time to market for wireless applications with extended range
requirements.
The modules with improved range capability are designed in two versions: the ZDM-A1281-PN, with U.FL antenna
connector built-in, and the ZDM-A1281-PN0, with unbalanced RF output. These modules have now expanded the
ZigBit family represented before by ZDM-A1281-A2 and ZDM-A1281-B0 modules
[1],
[2].
Applications
ZigBit Amp features the standards-based networking stack, based on IEEE802.15.4 PHY and MAC layers, and
ZigBee NWK/APS/ZDO layers. It enables multipoint, multi-hop communications over thousands of square meters at
moderate data rates without expensive infrastructure support. The architecture of the Wireless Sensor Networks
(WSN) allows for use of low powered devices. The applications include, but are not limited to:
•
Building automation & monitoring
•
•
Security
Lighting controls
•
Water metering
•
Wireless smoke and CO detectors
•
Industrial monitoring
•
•
Structural integrity monitoring
Machinery condition and performance monitoring
•
HVAC monitoring & control
•
Monitoring of plant system parameters such as
temperature, pressure, flow, tank level, humidity,
vibration, etc.
•
Inventory management
•
Environmental monitoring
•
Automated meter reading (AMR)
Benefits
•
Key features
•
Ultra compact size (38.0 x 13.5 x 2.0 mm)
•
High RX sensitivity (-104 dBm)
•
Outperforming link budget (124 dB)
•
Up to +20 dBm output power
•
Very low power consumption:
•
10 µA in sleep mode,
•
23 mA in RX mode,
•
50 mA in TX mode
•
Ample memory resources (128K bytes of flash
memory, 8K bytes RAM, 4K bytes EEPROM)
•
Wide range of interfaces (both analog and digital):
•
spare GPIO, 2 spare IRQ lines
•
4 ADC lines + 1 line for supply voltage control
(up to 9 lines with JTAG disabled)
•
UART with CTS/RTS control
•
USART
•
I2C
•
SPI
•
1-Wire
•
Up to 30 lines configurable as GPIO
•
Capability to use MAC address written into
EEPROM
•
IEEE 802.15.4 compliance
•
2.4 GHz ISM band
•
eZeeNet embedded software, including UART
bootloader and AT command set
Up to 4 kilometers (2 ½ miles) outdoor line of sight
range
•
Ultra low power consumption combined with
outperforming range
•
Rapid design-in with built-in U.FL connector
(ZDM-A1281-PN)
•
Flexibility in using a different external antenna for
every application
•
Small physical footprint and low profile for optimum
fit in even the smallest of devices
•
Mesh networking capability
•
Easy-to-use low cost Development Kit
•
Single source of support for HW and SW
© 2007 MeshNetics
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ZigBit™ Amp
OEM Modules
Product Datasheet
ZigBit™ Amp Module Overview
ZigBit™Amp is an extended-range low-power, high-
sensitivity IEEE802.15.4/ZigBee-compliant OEM module,
which occupies less than a square inch of space. Based
on a solid combination of Atmel’s latest AVR Z-Link
hardware platform, power amplifier and low-noise
amplifier, the ZigBit Amp offers an unmatched
combination of superior radio performance, ultra-low
power consumption and exceptional ease of integration.
ZigBit Amp contains Atmel’s ATmega1281V
Microcontroller
[3]
and AT86RF230 RF Transceiver
[4]
.
The module features 128K bytes flash memory and 8K
bytes RAM.
The compact all-in-one-chip integration of output Power
Amplifier and input Low-Noise Amplifier, along with RF
switches enables digital control of an external RF front-
end to dramatically improve ZigBit’s range performance
on signal transmission and increase its sensitivity. This
ensures stable connectivity with larger coverage area
without significant increase in module size. The HF U.FL
coaxial connector
[5]
used in the ZDM-A1281-PN module
enables the user to choose appropriate external antenna
for every type of application.
The ZigBit Amp already contains a complete RF/MCU
design with all the necessary passive components
included. The module can be easily mounted on a simple
2-layer PCB with a minimum of required external
connection. Compared to a single-chip solution, a
module-based solution offers considerable savings in
development time & NRE cost per unit during the design,
prototyping, and mass production phases of product
development.
To jumpstart evaluation and development, MeshNetics
also offers a complete set of evaluation development
tools. The new ZigBit Amp Development Kit
[6]
comes
with everything you need to prototype and test an
802.15.4 or ZigBee networking solution. It includes the
development boards with multiple interfaces, an out-of-
the-box data acquisition software suite, as well as
accessories and documentation. The sample data-
acquisition application allows network monitoring and
sensor data collection, all visualized via a graphic
interface.
The ZigBit Amp modules come bundled with the eZeeNet
networking firmware, which enables the module-based
OEM products to form self-healing, self-organizing mesh
networks. The eZeeNet stack conforms to IEEE802.15.4/
ZigBee specifications
[7],
[8],
[9].
Depending on end-user design requirements, the ZigBit
Amp modules can operate as a self-contained sensor
node, where it would function as a single MCU, or it can
be paired with a host processor driving the module as it
would be an RF modem.
In the former case, a user application may be used with
the eZeeNet Software allowing customization of
embedded applications through eZeeNet’s C API.
ZDM-A1281-PN/PN0 Block Diagram
VCC (3.0 – 3.6V)
IRQ
PA
UART
Atmega
1281
Micro
controller
AT86RF230
RF
Transceiver
Antenna
USART/SPI
Sw
Sw
I2C
JTAG
Analog
RF
I/O
LNA
GPIO
SPI Bus
In the latter case, the host processor controls data
transmission and manages module peripherals via a
powerful set of AT commands. Thus, no firmware
customization is required for a successful module
design-in. Additionally, the sensors can be connected
directly to the module, thus expanding the existing set of
sensor interfaces. The over-the-air control via AT-
commands eases network configuration and speeds up
application prototyping. It also enables wireless module
configuration during OEM mass-production process and
provides flexible commissioning protocol for installation
and maintenance of ZigBit Amp-based devices.
The eZeeNet is compact private profile software from
MeshNetics that is specifically tailored for data
acquisition applications. It allows optimizing the network
traffic, reducing power consumption, scheduling, and
smart power management. The eZeeNet software comes
with a set of drivers for standard peripherals (I
2
C, GPIO,
ADC, etc.) that ensure the ZigBit Amp module easy
integration.
eZeeNet™ Block Diagram
© 2007 MeshNetics
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ZigBit™ Amp
OEM Modules
Product Datasheet
Specifications
Test Conditions (unless otherwise stated): V
cc
= 3.0 V, f=2.45 GHz, T
amb
= 25 °C
Parameters
Range
Unit
Supply Voltage (V
cc
)
3.0 to 3.6
V
Current Consumption: RX mode
*
23
mA
Current Consumption: TX mode
*
50
mA
Current Consumption: Power Save
mode
**
< 10
μ
A
* Noted parameters are measured under the following conditions:
•
eZeeNet Software is running at 4 MHz clock rate, DTR line management is turned off
•
all interfaces are set to the default state (see
Pin Assignment
T
able)
•
output TX power is +20 dBm
•
JTAG is not connected
•
V
cc
= 3.0 V.
Current consumption actually depends on multiple factors, including but not limited to, the board design and
materials, eZeeNet settings, network activity, EEPROM read/write operations. It also depends on MCU load and/or
peripherals used by an application.
RF Characteristics
Parameters
Range
Unit
Condition
Frequency Band
2.400 to 2.4835
GHz
Number of Channels
16
Channel Spacing
5
MHz
Transmitter Output Power
0 to + 20
dBm
Adjusted in 16 steps
Receiver Sensitivit
y**
- 104
dBm
PER = 1%
On-Air Data Rate
250
kbps
TX Output / Rx Input Nominal
Impedance
50
Ohms
Unbalanced RF
output
Range, outdoors
Up to 4 000
m
With external 2.2 dBi
antenna
** Preliminary data
© 2007 MeshNetics
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