www.RFM.com E-mail: info@rfm.com Page1of6
©2008 by RF Monolithics, Inc. ZMN2405HP- 5/20/08
ZMN2405HP
Rating Value Units
All Input/Output Pins -0.3 to +3.6 V
Non-Operating Ambient Temperature Range -40 to +85 oC
ZMN2405HP Absolute Maximum Ratings
ZMN2405HP Electrical Characteristics
Characteristic Sym Notes Minimum Typical Maximum Units
Operating Frequency Range 2405 2475 MHz
Operating Frequency Tolerance -300 300 kHz
Spread Spectrum Method Direct Sequence
Modulation Type O-QPSK
Number of RF Channels 15
RF Data Transmission Rate 250 kb/s
Symbol Rate Tolerance 120 ppm
RF Channel Spacing 5 MHz
Receiver Sensitivity, 10E-5 BER -95 dBm
Upper Adjacent Channel Rejection, +5 MHz 41 dB
Lower Adjacent Channel Rejection, -5 MHz 30 dB
Upper Alternate Channel Rejection, +10 MHz 55 dB
Lower Alternate Channel Rejection, -10 MHz 53 dB
Maximum RF Transmit Power 16 17 18 dBm
Transmit Power Adjustment 20 dB
Optimum Antenna Impedance 50
2.4 GHz ZigBee Transceiver Module
Small Size, Light Weight, +18 dBm Transmitter Power
Sleep Current less than 3 µA
FCC and ETSI Certified for Unlicensed Operation High Power
ZigBee Module
The ZMN2405HP 2.4 GHz transceiver module is a low cost, high-power solution for
point-to-point, point-to-multipoint and MESH wireless systems. The ZMN2405HP
module provides the flexibility and versatility to serve applications ranging from cable
replacements to sensor networks. Based on the IEEE 802.15.4 wireless standard
and the ZigBee protocol stack, the ZMN2405HP module is easy to integrate and pro-
vides robust wireless communications including MESH network operation. The
ZMN2405HP includes RFM’s powerful CSM application profile, which eliminates the
need for customer firmware programming.
Shown with Shield Removed
DEVELOPMENT KIT
(Info Click here)
ZMN2405HP Firmware Configurations
ZMN2405HP modules are shipped loaded with one of three firmware configurations: coordinator, router or end
node. Each ZigBee network will include one, and only one coordinator. This module coordinates the overall net-
work operation and is the host application or gateway interface point for the network. The part number designation
for a coordinator is ZMN2405HP-C. Router modules are capable of retransmitting messages and provide the
mesh networking infrastructure in a ZigBee network. The part number designation for a router is ZMN2405HP-R.
End node modules provide field connection points for sensors, data loggers, PLCs, etc. The coordinator and the
routers in a ZigBee network must stay active (awake) continuously to support network operation. End nodes can
be sleep duty cycled where needed for extended battery life operation. The part number designation for an end
node is ZMN2405HP-E. A router can provide the same field connection support as an end node, but a router can-
not be sleep duty cycled without affecting mesh network operation. Specify the number of modules for each firm-
ware configuration when ordering ZMN2405HP modules.
www.RFM.com E-mail: info@rfm.com Page2of6
©2008 by RF Monolithics, Inc. ZMN2405HP- 5/20/08
Characteristic Sym Notes Minimum Typical Maximum Units
ADC Input Range 0 3.3 V
ADC Input Resolution 7 12 bits
ADC Input Impedance 55 M
PWM Output Resolution 12 bits
UART Baud Rate 1.2 115.2 kb/s
Digital I/O:
Logic Low Input Level -0.3 0.5 V
Logic High Input Level 2.8 3.6 V
Logic Input Internal Pull-up/Pull-down Resistor 20 K
GPIO3 Logic Low Sink Current 20 mA
Power Supply Voltage Range VCC +3.3 +5.5 Vdc
Power Supply Voltage Ripple 10 mVP-P
Receive Mode Current 33 mA
Transmit Mode Current 130 mA
Sleep Mode Current A
Operating Temperature Range -40 85 oC
ZMN2405HP Electrical Characteristics
CAUTION: Electrostatic Sensitive Device. Observe precautions when handling.
www.RFM.com E-mail: info@rfm.com Page3of6
©2008 by RF Monolithics, Inc. ZMN2405HP- 5/20/08
ZMN2405HP Hardware
The major hardware component of the ZMN2405HP is
the CC2430 IEEE 802.15.4 compatible transceiver
with integrated 8051 microcontroller. The ZMN2405HP
operates in the frequency band of 2405 to 2475 MHz
at a nominal output power of 63 mW.
The ZMN2405HP includes a low noise preamplifier in
the receiver path and a power amplifier in the transmit-
ter path, greatly increasing the operating range of the
CC2430. Two crystals are provided to operate the
CC2430, a 32 MHz crystal for normal operation and a
32.768 kHz crystal for precision sleep mode operation.
The ZMN2405HP provides a variety of application
hardware interfaces including an SPI interface, UART
interface, three 12-bit ADC inputs, two PWM (DAC)
outputs, and six general purpose digital I/O ports.
ZMN2405HP Firmware
The main firmware components in the ZMN2405HP
include the ZigBee protocol stack and the RFM’s CSM
standard module application profile. The ZigBee proto-
col stack implements networking and security, with
underlying support from the 802.15.4 Media Access
Control (MAC) layer. The CSM profile provides an
application programming interface (API) for all the
ZMN2405HP application hardware interfaces. The
CSM profile includes Network Discovery, Send/Re-
ceive Serial Data, Read/Write SPI Port, Read ADC
Inputs, Write DAC Outputs, Read/Write GPIO and
Module Configuration services. In addition, the CSM
profile provides two sleep modes - timer sleep and
interrupt sleep. See the ZMN2405HP ZigBee Module
Developer’s Kit User’s Manual for complete details of
the CSM profile API.
2 3 2 4 2 5 2 6 2 7 2 82 22 12 01 9 2 9 3 0 3 1
1 8
1 7
1 6
1 5
1 4
1 3
1 2
1 1
1 0
9
8
7
6
5
Z M N 2 4 0 5 H P B l o c k D i a g r a m
F i l t e r
F i l t e r
F i l t e r
3 2 3 3 3 4 3 6
C C 2 4 3 0
8 0 2 . 1 5 . 4
R a d i o a n d
M i c r o c o n t r o l l e r
4
3
2
1R e g
F i l t e r
F i l t e r
V C C
G N D
P W M A
P W M B
G P I O 0
G P I O 1
G P I O 2
G P I O 3
G P I O 4
G P I O 5
G N D
L I N K / T D O
/ R E S E T
A C T / T C K
N C
ADC REF
G N D
G N D
3 8
+ 3 . 3 V
R F I O
3 2 M H z3 2 . 7 6 8 k H z
G N D
G N D
UART_RX
U A R T _ T X
RESET
ADCX
ADCY
ADCZ
G N D
S P I _ E N
S P I _ S C L K
S P I _ M O S I
S P I _ M I S O
G N D
G N D
G N D
T / R
T / R
P W R
P R E
F i l t e r
3 5
N C
N C
3 7
3 9
T X / R X
C o m b i n e r
+ 3 . 3 V
+ 3 . 3 V
Figure 1
Pad Name Description
1 VCC Power supply input, +3.3 to +5.5 Vdc.
2 GND Power supply and signal ground. Connect to the host circuit board ground.
3 PWMA Pulse-width modulated output A. Provides a DAC function when used with an external low-pass filter.
4 PWMB Pulse-width modulated output B. Provides a DAC function when used with an external low-pass filter.
5 GPIO0 Configurable digital I/O port 0. When configured as an output, the power-on state is also configurable.
6 GPIO1 Configurable digital I/O port 1. When configured as an output, the power-on state is also configurable.
7 GPIO2 Configurable digital I/O port 2. When configured as an output, the power-on state is also configurable.
8 GPIO3 Configurable digital I/O port 3. When configured as an output, this high current port can sink up to 20 mA. The
power-on output state is also configurable.
9 GPIO4 Configurable digital I/O port 4. When configured as an output, the power-on state is also configurable.
10 GPIO5 Configurable digital I/O port 5. When configured as an output, the power-on state is also configurable.
11 GND Power supply and signal ground. Connect to the host circuit board ground.
12 LINK/DD Output signal indicating module’s link status in default mode. Also used by JTAG interface as Data Output.
13 /RESET Active low hardware reset. Hold this input low when the power supply is below 2.7 V. In parallel with pad 24.
14 ACT/DC Output signal indicating RF data activity. Also used by JTAG interface as Data Clock Input.
15 NC No connection.
16 ADC REF Module’s +3.3 V regulated supply, used for ratiometric ADC readings. Current drain on this output should be no
greater than 5 mA.
17 - 20 GND Power supply and signal grounds. Connect to the host circuit board ground.
21 UART_RX Serial data input to UART.
22 UART_TX Serial data output from UART.
23 NC No connection.
24 /RESET Active low hardware reset. Hold this input low when the power supply is below 2.7 V. In parallel with pad 13.
25 ADCX 7- to 12-bit ADC input X. ADC full scale can be referenced to +3.3 V supply or internal +2.5 V reference.
26 ADCY 7- to 12-bit ADC input Y. ADC full scale can be referenced to +3.3 V supply or internal +2.5 V reference.
27 ADCZ 7- to 12-bit ADC input Z. ADC full scale can be referenced to +3.3 V supply or internal +2.5 V reference.
28 GND Power supply and signal ground. Connect to the host circuit board ground.
29 SPI_EN Active-low enable output for SPI bus devices.
30 SPI_SCLK SPI port clock signal.
31 SPI_MOSI SPI port data output.
32 SPI_MISO SPI port data input.
33-34 GND Power supply and signal ground. Connect to the host circuit board ground.
35 NC No connection.
36 GND Power supply and signal ground. Connect to the host circuit board ground.
37 GND RF ground. Connect to the host circuit board ground plane, and to shield when using coaxial cable.
38 RFIO RF port. Connect the antenna to this port with a 50 stripline or semi-rigid coaxial cable.
39 GND RF ground. Connect to the host circuit board ground plane, and to shield when using coaxial cable.
www.RFM.com E-mail: info@rfm.com Page4of6
©2008 by RF Monolithics, Inc. ZMN2405HP- 5/20/08
ZMN2405HP I/O Pad Descriptions
RFIO Stripline
The RFIO pad on the radio module is connected directly to an antenna on the host circuit board, or to an MMCX
or similar RF connector. It is important that this connection be implemented as a 50 ohm stripline. Referring to
Figure 3, the width of this stripline depends on the thickness of the circuit board between the stripline and the
groundplane. For FR-4 type circuit board materials (dielectric constant of 4.7), the width of the stripline is equal to
1.75 times the thickness of the circuit board. Note that other circuit board traces should be spaced away from the
stripline to prevent signal coupling, as shown in Figure 4. The stripline trace should be kept short to minimize its
insertion loss.
www.RFM.com E-mail: info@rfm.com Page5of6
©2008 by RF Monolithics, Inc. ZMN2405HP- 5/20/08
0 . 0 3 0
S q u a r e
0 . 0 7 0
1 . 6 0 0
0 . 0 9 0
0 . 8 3 5
0 . 7 9 0
Z M N 2 4 0 5 H P O u t l i n e a n d M o u n t i n g D i m e n s i o n s
0 . 0 6 0
1
3 6
T o p V i e w
0 . 0 9 5
0 . 1 2 0
3 7
3 9
0 . 1 1 5
0 . 3 5 5
0 . 5 9 5
1 9
1 8
N o t e : L i g h t g r a y p a d s a r e f o r m e c h a n i c a l s t a b i l i t y d u r i n g s o l d e r r e f l o w m o u n t i n g .
H o s t P C B s h o u l d h a v e m a t c h i n g p a d s w i t h n o e l e c t r i c a l c o n n e c t i o n .
Figure 2
C o p p e r
G r o u n d
P l a n e
C o p p e r
S t r i p l i n e
T r a c e
F R - 4 P C B
M a t e r i a l
C i r c u i t B o a r d S t r i p l i n e T r a c e D e t a i l
F o r 5 0 o h m i m p e d a n c e W = 1 . 7 5 * H
Figure 3 Figure 4
Trace Separation from
50 Ohm Microstrip
Length of Trace Run
Parallel to Microstrip
100 mil 125 mil
150 mil 200 mil
200 mil 290 mil
250 mil 450 mil
300 mil 650 mil
Reflow Profile
An example solder reflow profile for mounting the radio module on its host circuit board is shown in Figure 5.
www.RFM.com E-mail: info@rfm.com Page6of6
©2008 by RF Monolithics, Inc. ZMN2405HP- 5/20/08
Figure 5
Note: Specifications subject to change without notice.