Murata DNT90MPA Low cost 900 mhz fhss transceiver module with i/o Datasheet

DNT90MCA
DNT90MPA
- 900 MHz Frequency Hopping Spread Spectrum Transceivers
- Direct Peer-to-peer Low Latency Communication
- Transmitter Power Configurable to 40 or 158 mW
- Built-in 0 dBi Chip Antenna
- 100 kbps RF Data Rate
- Serial Port Data Rate up to 250 kbps, SPI Port Data Rate up to 500 kbps
- 128-Bit AES Encryption
- Separate Serial Port for Diagnostics
- Analog and Digital I/O for Sensor Applications
- FCC and Canadian IC Certified for Unlicensed Operation
The DNT90MCA and DNT90MPA FHSS transceiver modules provide a low-cost, versatile solution
for wireless data communications in the 900 MHz ISM band. Direct peer-to-peer communication
provides very low transmission latency between all modules in a network. The DNT90MCA/MPA
RF output power can be set at 40 or 158 mW. The DNT90MCA/MPA receiver input is protected by
a low-loss SAW filter, providing an excellent combination of receiver sensitivity and out-of-band interference rejection. The DNT90MCA/MPA modules include analog, digital and serial I/O, providing
the flexibility to serve applications ranging from cable replacements to sensor networks. The built-in
chip antenna makes these modules very easy to integrate.
Low Cost
900 MHz FHSS
Transceiver
Modules with
I/O
DNT90MCA/MPA Absolute Maximum Ratings
Rating
Value
Units
Power Supply Input
-0.5 to +6.5
V
All Input/Output Pins
-0.5 to +3.3
V
0
dBm
Input Power to RFIO Port
Non-Operating Ambient Temperature Range
-40 to +85
o
C
DNT90MCA/MPA Electrical Characteristics
Characteristic
Sym
Notes
Minimum
Typical
RF Communication Topology
Direct Peer-to-Peer
Spread Spectrum Mode
Frequency Hopping
Operating Frequency Range
Number of RF Channels
Units
926.76
MHz
400
ms
902.76
1
Number of Hopping Patterns
Hop Duration
Maximum
26
64
1
Modulation
FSK
RF Data Transmission Rate
-5
Receiver Sensitivity @ 10 BER
Transmitter RF Output Power
Antenna
RF Connection
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© 2012 by RF Monolithics, Inc.
1
100
kbps
-100
dBm
40 or 158 mW
mW
0 dBi Dielectric Chip Antenna
Ω
U.FL Coaxial Connector
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DNT90MCA/MPA - 09/26/12
DNT90MCA/MPA Electrical Characteristics
Characteristic
Sym
Notes
ADC Input Range
Minimum
Typical
0
ADC Input Resolution
ADC Sample Rate
Maximum
Units
2.7
V
12
bits
100
Hz
Signal Source Impedance for ADC Reading
ADC External Reference Voltage Range
DAC Output Range
10
KΩ
1.0
2.7
V
0
3.3
V
12
bits
DAC Output Resolution
1.2, 2.4, 4.8, 9.6, 14.4, 19.2, 28.8,
38.4, 57.6, 115.2, 230.4, 250.0
Primary and Diagnostic Serial Port Baud Rates
Master Serial Peripheral Interface Data Rate
125
250
Slave Serial Peripheral Interface Data Rate
kbps
500
kbps
4000
kbps
Digital I/O:
Logic Low Input Level
-0.5
0.8
V
Logic High Input Level
2.45
3.3
V
Logic Input Internal Pull-up Resistor
Power Supply Voltage Range
20
VCC
KΩ
+3.3
Power Supply Voltage Ripple
Peak Transmit Mode Current, 158 mW Output
Receive Current
Sleep Current
+5.5
Vdc
10
mVP-P
170
mA
40
2
mA
3
6
DNT90MCA Mounting
Reflow Soldering
DNT90MPA Mounting
Socket
µA
Operating Temperature Range
-40
85
o
Operating Relative Humidity Range, Non-condensing
10
90
%
C
Notes:
1. The DNT90MCA/MPA achieves regulatory certification under FHSS rules.
2. Maximum sleep current occurs at +85 oC.
CAUTION: Electrostatic Sensitive Device. Observe precautions when handling.
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© 2012 by RF Monolithics, Inc.
Page 2 of 7
DNT90MCA/MPA - 09/26/12
D N T 9 0 M C A /D N T 9 0 M P A B lo c k D ia g r a m
C h ip
A n te n n a
1
G N D
2
A C T (D IA G _ T X )
3
/D C D (D IA G _ R X )
IR Q 0
4
G P IO 0
R A D IO _ T X D
5
R A D IO _ R X D
6
G P IO 4 (/H O S T _ C T S )
7
G P IO 5 (/H O S T _ R T S )
8
D A C 0
9
IR Q 1 /D C L K
D A T A
P L L _ L O C K
S C K
M ic r o c o n tr o lle r
G P IO 2
1 0
G P IO 1
1 1
G P IO 3 (D A V )
1 2
D A C 1
1 3
V C C
1 4
S D I
T R C 1 0 3
S A W
F ilte r
a n d
P o w e r A m p
S D O
n S S _ D A T A
n S S _ C O N F IG
1 5
G N D
+ 3 .3 V
R e g
2 7
2 8
2 9
3 0
G N D
A D C _ E X T _ R E
2 6
R S V D
2 5
R S V D
2 4
G N D
2 3
R S V D
2 2
3 .3 V _ O U T
A D C 0
2 1
/S S
/R E S E T
2 0
S C L K
G N D
1 9
M O S I
1 8
A D C 1
1 7
M IS O
1 6
Figure 1
DNT90MCA/MPA Hardware
The major components of the DNT90MCA and DNT90MPA include an RFM TRC103 900 MHz FHSS transceiver
and a low current 8-bit microcontroller. The DNT90MCA
and DNT90MPA operate in the 902 to 928 MHz ISM band.
The DNT90MCA/MPA hops across 26 frequency channels
on one of 64 selectable hopping patterns. The DNT90MCA/MPA has two selectable RF output power levels:
+16 dBm (40 mW) and +22 dBm (158 mW).
The DNT90MCA/MPA receiver is protected by a low-loss
SAW filter, providing an excellent blend of receiver sensitivity and out-of-band interference rejection. All DNT90MCA/MPA configurations include a built-in chip antenna
that simplifies integrating a module into an application.
The DNT90MCA/MPA provides a variety of hardware interfaces. There are two serial ports plus one SPI port. Either
the primary serial port or the SPI port can be selected for
data communications. The second serial port is dedicated
to diagnostics. The primary and diagnostic serial ports support most standard baud rates up to 250 kbps. The SPI
port supports data rates up to 500 kbps. The DNT90MCA/MPA also includes three ADC inputs, two DAC outputs, and six general-purpose digital I/O ports. Four of the
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© 2012 by RF Monolithics, Inc.
digital I/O ports support an optional interrupt-from-sleep
mode when configured as inputs. The radio is available in
two mounting configurations. The DNT90MCA is designed
for solder reflow mounting. The DNT90MPA is designed
for plug-in connector mounting.
DNT90MCA/MPA Firmware
DNT90MCA/MPA firmware implements direct peer-to-peer
data transmissions that provide very low transmission latency between all DNT90MCA/MPA radios in a network. In
addition, efficient point-to-point and point-to-multipoint networks are readily configured using direct peer-to-peer
transmissions.
DNT90MCA/MPA firmware provides the user with a rich
set of configuration options including a choice of hopping
patterns, serial and/or SPI data port operation, serial and
SPI data rate selection, RF output power selection, plus
config- urable analog and digital I/O lines. Data integrity is
protected by 24-bit error detection, with optional ACK and
automatic transmission retries or redundant transmissions.
128-bit AES encryption provides a high level of data security for sensitive applications. Sensor networks can take
advantage of timer or event-based data reporting and remote node sleep cycling for extended battery life.
Page 3 of 7
DNT90MCA/MPA - 09/26/12
DNT90MCA/MPA I/O Descriptions
Pin
Name
I/O
1
GND
-
ACT
(DIAG_TX)
O
(O)
This pin’s default configuration is transmitter activity (ACT) output. The ACT signal is asserted whenever
any data packet other than just an ACK is transmitted. The alternate function for this pin is the diagnostic
serial port output.
/DCD
(DIAG_RX)
O
(I)
The /DCD signal is asserted when a DNT90MCA/MPA receives a valid packet. If a radio is transmitting
data and receiving ACKs, both the ACT and /DCD signals will be asserted. If a radio is receiving packets
only, the /DCD signal will be asserted. The alternate function for this pin is the diagnostic serial port input.
I/O
Configurable digital I/O port 0. When configured as an input, an internal pull-up resistor can be selected
and direct interrupt from sleep can be invoked. When configured as an output, the power-on state is
configurable. In sleep mode the pin direction, input pull-up selection or output state are also separately
configurable.
2
3
4
GPIO0
Description
Power supply and signal ground. Connect to the host circuit board ground.
5
RADIO_TXD
O
Serial data output from the radio.
6
RADIO_RXD
I
Serial data input to the radio.
7
GPOI4
(/HOST_CTS)
I/O
(O)
Default pin function is GPIO4 with the same configuration options as GPIO2. Alternate pin function is
UART/SPI flow control output. The module sets this line low when it is ready to accept data from the host
on the RADIO_RXD or MOSI input. When the line goes high, the host must stop sending data.
8
GPOI5
(/HOST_RTS)
I/O
(I)
Default pin function is GPIO5 with the same configuration options as GPIO2. Alternate pin function is
UART/SPI flow control input. The host sets this line low to allow data to flow from the module on
the RADIO_TXD pin. When the host sets this line high, the module will stop sending data to the host.
9
DAC0
O
12-bit DAC 0 output. Full scale output can be referenced to the voltage at pin 25 or the 3.3 V regulated
module bus voltage.
10
GPIO2
I/O
Configurable digital I/O port 2. Same configuration options as GPIO0.
11
GPIO1
I/O
Configurable digital I/O port 1. Same configuration options as GPIO0.
12
GPIO3
(DAV)
I/O
(O)
Default pin function is GPIO3 with the same configuration options as GPIO0. When SPI slave mode operation is enabled, a logic high on this pin indicates when data is available to be clocked out by the SPI
master.
13
DAC1
O
12-bit DAC 1 output. Same specifications and configuration options as DAC0.
14
VCC
I
Power supply input, +3.3 to +5.5 Vdc.
15
GND
-
Power supply and signal ground. Connect to the host circuit board ground.
16
GND
-
Power supply and signal ground. Connect to the host circuit board ground.
17
/RESET
I
Active low module hardware reset.
18
ADC0
I
ADC input 0. This pin is a direct ADC input when the ADC is operating in single-ended mode, or the differential negative input for positive inputs applied to ADC1 or ADC2 when the ADC is operating in differential
mode. Full-scale reading can be referenced to Pin 25 for ratiometric measurements. For absolute measurements, the ADC can use the regulated supply voltage divided by 1.6 (about 2.06 V), or an external
voltage applied to Pin 25. In single-ended mode, ADC measurements are 11-bit unsigned values with full
scale nominally 2.7 V when referenced to a 2.7 V input on Pin 27. In differential mode, ADC measurements are 12-bit signed values.
19
ADC1
I
ADC input 1. Direct input when the ADC is operating in single-ended mode, positive differential input relative to ADC0 when the ADC is operating in differential mode.
20
MISO
I/O
This pin is the SPI master mode input or slave mode output.
21
MOSI
I/O
This pin is the SPI master mode output or slave mode input.
22
/SS
I/O
SPI active low slave select. This pin is an output when the module is operating as a master, and an input
when it is operating as a slave.
23
SCLK
I/O
SPI clock signal. This pin is an output when operating as a master, and an input when operating as
a slave.
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© 2012 by RF Monolithics, Inc.
Page 4 of 7
DNT90MCA/MPA - 09/26/12
Pin
Name
I/O
Description
24
ADC2
I
ADC input 2. Direct input when the ADC is operating in single-ended mode, positive differential input relative to ADC0 when the ADC is operating in differential mode.
25
ADC_EXT_
REF
I/O
ADC external reference voltage pin. The voltage at this pin can be used by the ADCs as a reference for
ratiometric measurements. With no external voltage or load applied, this pin presents a nominal 2.7 V output through a 2.126 K source resistance. A low impedance external reference voltage in the range of 1 to
2.7 V may be applied to this pin as an option.
26
RSVD
-
Reserved pin. Leave unconnected.
27
RSVD
-
Reserved pin. Leave unconnected.
28
GND
-
Connect to the host circuit board ground plane.
29
RSVD
-
Reserved pin. Leave unconnected.
30
GND
-
Connect to the host circuit board ground plane.
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© 2012 by RF Monolithics, Inc.
Page 5 of 7
DNT90MCA/MPA - 09/26/12
D N T 9 0 M C A O u tlin e a n d M o u n tin g D im e n s io n s
1 .8 0 0
(4 5 .7 )
0 .0 5 0 (1 .2 7 )
1
1 5
T o p V ie w
A n te n n a
1 6
0 .9 8 0
(2 4 .9 )
3 0
0 .6 5 0 (1 6 .5 )
0 .4 5 0 (1 1 .4 )
0 .1 2 5
(3 .1 8 )
0 .0 8 0
D im e n s io n s in in c h e s (m m )
Figure 2
D N T 9 0 M C A S o ld e r P a d D im e n s io n s
1 .8 0 0 (4 5 .7 )
0 .0 5 0 (1 .2 7 )
0 .0 6 0 (1 .5 2 )
1 5
1
0 .0 3 5 (0 .8 9 )
0 .9 8 0
(2 4 .9 )
T o p V ie w
1 6
0 .4 5 0 (1 1 .4 )
1 .0 4 0
(2 6 .4 )
3 0
D im e n s io n s in in c h e s (m m )
Figure 3
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© 2012 by RF Monolithics, Inc.
Page 6 of 7
DNT90MCA/MPA - 09/26/12
D N T 9 0 M P A O u tlin e a n d M o u n tin g D im e n s io n s
1 .8 0 0
(4 5 .7 )
0 .0 5 0 (1 .2 7 )
1 5
0 .9 8 0
(2 4 .9 )
1
T o p V ie w
1 .1 0 0
(2 7 .9 )
A n te n n a
1 6
3 0
0 .6 5 0 (1 6 .5 )
0 .4 5 0 (1 1 .4 )
0 .0 8 0
(2 .0 3 )
0 .1 2 5
(3 .1 8 )
0 .2 2 5
(5 .7 2 )
0 .1 0 0
(2 .5 4 )
D im e n s io n s in in c h e s (m m )
D N T 9 0 M P A In te r fa c e C o n n e c to r
P C B L a y o u t D e ta il
0 .1 0 0
(2 .5 4 )
0 .0 5 0
(1 .2 7 )
0 .8 0 0
(2 0 .3 )
C o n n e c to rs a re S A M T E C
S L M -1 1 5 -0 1 -G -S
o r E q u iv a le n t
0 .7 0 0
(1 7 .8 )
0 .9 8 0
(2 4 .9 )
D im e n s io n s a r e in in c h e s (m m )
Note: Specifications subject to change without notice.
Part # M-0090-0000MA, Rev A
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© 2012 by RF Monolithics, Inc.
Page 7 of 7
DNT90MCA/MPA - 09/26/12
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