DP1205
433/868/915 MHz RF Modules
DP1205 – C433/868/915
433, 868 and 915 MHz Drop-In RF Transceiver Modules
Combine Small Form Factor with High Performance
GENERAL DESCRIPTION
The DP1205s are complete Radio Transceiver
Modules operating in the 433, 868 and 915 MHz
license free ISM (Industrial Scientific and Medical)
frequency bands. Based on the XE1205
transceiver, the DP1205 offers the unique
advantage of both narrow-band and wide-band
communication. Offering high output power and
exceptional receiver sensitivity, the radio module
is suitable for applications seeking to satisfy the
European (ETSI EN300-220-1and EN301 439-3)
or the North American (FCC part 15.247 and
15.249) regulatory standards.
The DP1205 is suitable for operation in the
European social alarm bands (25 kHz channel
spacing). Its built-in 16-byte FIFO and full SPI
simplify interfacing to the host controller.
KEY PRODUCT FEATURES
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No RF knowledge required
Direct Digital interface
Fully assembled and tested
Surface mount
30.5 mm x 18.5 mm
Supply voltage 2.4 V – 3.6 V
Frequency synthesizer steps 500 Hz
Output power is programmable up to 15 dBm
High Rx 0.1 % sensitivity down to -113 dBm at 4.8
kbps
Data rate up to 152.3 kbit/s
Current consumption Tx = 62 mA at 15 dBm
Current consumption Rx = 14 mA
16-byte FIFO
Digital RSSI (Received Signal Strength Indicator)
Digital FEI (Frequency Error Indicator)
APPLICATIONS
DEVICE OPTIONS
•
Narrow-band and wide-band security
systems
•
Voice and data over an RF link
•
Process and building control
•
Access control
•
Home automation
•
Home appliance interconnections
Part Number
DP1205C433LF
DP1205C915LF
DP1205C868LF
Frequency
band
433 - 435 MHz
902 - 928 MHz
868 - 870 MHz
Package
Board
Board
Board
Rev 4 May 2006
www.semtech.com
1
DP1205
433/868/915 MHz RF Modules
Table of Contents
1
2
3
3.1
3.2
4
5
6
7
8
9
10
Non-Conformance ...................................................................................................................................... 3
Pin Description ........................................................................................................................................... 3
Electrical Characteristics .......................................................................................................................... 4
Absolute maximum operating ranges........................................................................................................... 4
Specifications ............................................................................................................................................... 5
Functional Description .............................................................................................................................. 6
Data operation modes................................................................................................................................ 7
Serial Control Interface.............................................................................................................................. 8
Operating Modes ........................................................................................................................................ 9
Typical Application................................................................................................................................... 10
Mechanical Dimensions........................................................................................................................... 11
Packaging Information............................................................................................................................. 12
© Semtech 2006
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2
DP1205
433/868/915 MHz RF Modules
1
NON-CONFORMANCE
Please note that the leaded version of this product exhibits a non-conformance. The non-conformance affects the
CLKOUT signal of the DP1205 which is not enabled at power-up of the module. It is also recommended to program all
registers after power-up of the module. The Lead-Free version (suffix "LF") of this product does not exhibit these non-
conformances.
Please note that all products whose date-codes are before 0706 (wwyy) exhibit a non-conformance to specification. The
non-conformance affects the FIFO buffer of the XE1205 transceiver contained in this module as described in section 5 -
Data operation modes. For these date-codes, please use the FIFO in this product only in conjunction with the Technical
Note TN1205.01 (available from the SEMTECH web site). All other date-codes are in conformance with the specification.
2
PIN DESCRIPTION
19 18
17 16 15 14 13 12 11
1
2
3
4
5
6
7
8
9 10
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
NAME
GND
RF_IN_OUT
GND
VDDA
GND
VDD
NSS_CONFIG
NSS_DATA
IRQ0
GND
GND
IRQ1
DATA
CLKOUT
MISO
MOSI
SCK
SW(0)
SW(1)
I/O
IN/OUT
IN
IN
OUT
OUT
IN/OUT
OUT
OUT
IN
IN
IN/OUT
IN/OUT
DESCRIPTION
Ground
RF Input / Output terminal
Ground
Supply Voltage
Ground
Supply Voltage
SPI SELECT CONFIG
SPI SELECT DATA / DATAIN
Interrupt (PATTERN/FIFOEMPTY)
Ground
Ground
Interrupt (DCLK/FIFOFULL)
Data
Output clock at reference frequency divided by 2, 4, 8, 16, 32
SPI Master Input Slave Output
SPI Master Output Slave Input
SPI CLOCK
Transmit/Receive/Stand-by/Sleep Mode Select
Transmit/Receive/Stand-by/Sleep Mode Select
© Semtech 2006
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3
DP1205
433/868/915 MHz RF Modules
3
3.1
ELECTRICAL CHARACTERISTICS
ABSOLUTE MAXIMUM OPERATING RANGES
Description
Supply voltage
Operating temperature
Storage temperature
Soldering temperature (max 15 sec)
Min
2.4
-40
-55
Max
3.6
+85
125
260
Unit
V
o
C
o
C
o
C
CAUTION: ESD sensitive device.
Precaution should be taken when handling the device in order to prevent permanent damage
Life Support Policy and Use in Safety Critical Applications
SEMTECH PRODUCTS ARE NOT DESIGNED, INTENDED, AUTHORIZED OR WARRANTED TO BE SUITABLE
FOR USE IN LIFE-SUPPORT APPLICATIONS, DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS.
INCLUSION OF SEMTECH PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE UNDERTAKEN
SOLELY AT THE CUSTOMER’S OWN RISK.
© Semtech 2006
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4
DP1205
433/868/915 MHz RF Modules
3.2 SPECIFICATIONS
The table below gives the specifications of the DP1205 modules under the following conditions:
Supply voltage VDD = 3.3V, temperature = 25
°
C, frequency deviation
∆f
= 5 kHz, Bit-rate = 4.8 kbit/s, base-band filter
bandwidth BW
SSB
= 10 kHz, carrier frequency fc = 434 MHz for the DP1205C433LF, fc = 869 MHz for the
DP1205C868LF and fc = 915 MHz for the DP1205C915LF, bit error rate BER = 0.1% (measured at the output of the bit
synchronizer), antenna output matched at 50
Ω.
Symbol
FR
Parameter
Synthesizer Frequency Range
Conditions
DP1205C433LF
DP1205C868LF
DP1205C915LF
39 MHz running
P
RF
= 5 dBm
P
RF
= 15dBm
A-mode
A-mode, BER = 0.1%
Programmable
Programmable
Programmable.
RFOP1
RFOP2
RFOP3
RFOP4
From oscillator enabled
From oscillator enabled
Fundamental
Min
433
868
902
-
-
Typ
-
-
-
0.2
0.85
14
33
62
-113
-118
Max
435
870
928
1
1.1
16.5
40
75
-110
-115
255
152.3
-
-
-
-
350
850
2
Units
MHz
MHz
MHz
μA
mA
mA
mA
mA
dBm
dBm
kHz
Kb/s
dBm
dBm
dBm
dBm
μs
μs
ms
MHz
IDDSL
IDDST
IDDR
IDDT
RFS
RFS_12
FDA
BR
RFOP
Sleep mode supply current
Standby mode supply current
RX mode supply current
TX mode supply current
RF Sensitivity
RF Sensitivity at 1.2kbit/s
Frequency Deviation
Bit rate
RF output power
1
1.2
-3
+2
+7
+12
-
-
-
-
-
0
+5
+10
+15
250
700
1
39
TS_STR
TS_SRE
TS_OS
XTAL
VIH
VIL
Transmitter wake-up time
Receiver wake up time
Quartz oscillator wake up time
Quartz oscillator frequency
Digital input level high
Digital input level low
% VDD
% VDD
75
-
-
-
-
25
%
%
© Semtech 2006
www.semtech.com
5
Microcontroller MCU
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