HOPERF RFM12-433-D

RFM12
UNIVERSAL ISM BAND FSK TRANSCEIVER MODULE
RFM12
(the purpose of this spec covers mainly for the
physical characteristic of the module, for register
configure and its related command info please refer
to RF12 data sheets)
RFM12
General Introduction
RFM12 is a low costing ISM band transceiver
module implemented with unique PLL. It works
signal ranges from 315/433/868/915MHZ bands,
comply with FCC, ETSI regulation. The SPI
interface is used to communicate with
microcontroller for parameter setting.
Features:
• Low costing, high performance and price ratio
• Tuning free during production
• PLL and zero IF technology
• Fast PLL lock time
• High resolution PLL with 2.5 KHz step
• High data rate (up to 115.2 kbps with internal demodulator,with external RC filter highest data rate is
256 kbps)
• Differential antenna input
• Automatic antenna tuning
• Programmable TX frequency deviation (from 15 to 240 KHz)
• Programmable receiver bandwidth (from 67 to 400 kHz)
• Analog and digital signal strength indicator (ARSSI/DRSSI)
• AFC
• DQD
• Internal data filtering and clock recovery
• RX synchron pattern recognition
• SPI interface
• Clock and reset signal output for external MCU use
• 16 bit RX Data FIFO
• Two 8 bit TX data registers
• 10MHz crystal for PLL timing
• Wakeup timer
• 2.2V - 5.4V power supply
• Low power consumption
• Standby current less than 0.3uA
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RFM12
Typical Application:
• Remote control
• Remote sensor
• Wireless data collection
• Home security system
• Toys
• Tire pressure monitoring system
Pin Definition:
SMD
DIP
definition
Type
Function
nINT/VDI
DI/ DO
Interrupt input (active low)/Valid data indicator
VDD
S
Positive power supply
SDI
DI
SPI data input
SCK
DI
SPI clock input
nSEL
DI
Chip select (active low)
SDO
DO
Serial data output with bus hold
nIRQ
DO
Interrupts request output(active low)
FSK/DATA/nFFS
DI/DO/DI
Transmit FSK data input/ Received data output (FIFO not used)/ FIFO
select
DCLK/CFIL/FFIT
DO/AIO/DO
Clock output (no FIFO )/ external filter capacitor(analog mode)/ FIFO
interrupts(active high)when FIFO level set to 1, FIFO empty
interruption can be achieved
CLK
DO
Clock output for external microcontroller
nRES
DIO
Reset output(active low)
GND
S
Power ground
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RFM12
Electrical Parameter:
Maximum(not at working mode)
symbol
parameter
minimum
maximum
Unit
Vdd
Positive power supply
-0.5
6.0
V
Vin
All pin input level
-0.5
Vdd+0.5
V
Iin
Input current except power
-25
25
mA
ESD
Human body model
1000
V
Tst
Storage temperature
125
℃
Tld
Soldering temperature(10s)
260
℃
-55
Recommended working range
symbol
parameter
minimum
maximum
Unit
Vdd
Positive power supply
2.2
5.4
V
Top
Working temperature
-40
85
℃
DC characteristic
symbol
parameter
Remark
Idd_TX_0
Supply current
315,433MHz band
13
(TX mode, Pout = 0dBm)
868MHz band
16
915MHz band
17
Idd_TX_PMAX
Idd_RX
Ix
minimum
typical
Supply current
315,433MHz band
21
(TX mode, Pout = Pmax)
868MHz band
24
915MHz band
25
Supply current
315,433MHz band
10
(RX mode)
868MHz band
12
915MHz band
13
Crystal and base band
3.0
Stand by current
maximum
Unit
mA
mA
mA
3.5
mA
on
Ipd
Sleep mode current
Ilb
Low battery detection
Vlb
Low battery step
Vlba
Low battery detection
All blocks off
0.1V per step
0.3
uA
0.5
uA
2.2
5.3
75
V
mV
accuracy
Vil
Low level input
Vih
High level input
Iil
Leakage current
Vil=0V
-1
1
uA
Iih
Leakage current
Vih=Vdd, Vdd=5.4V
-1
1
uA
Vol
Low level output
Iol=2mA
0.4
V
Voh
High level output
Ioh=-2mA
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0.3*Vdd
0.7*Vdd
V
V
Vdd-0.4
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V
RFM12
AC characteristic
symbol
parameter
fref
PLL frequency
fLO
fLO
fLO
BW
tlock
remark
min
typical
max
Unit
8
10
12
MHz
frequency
315 MHz band,2.5KHz step
310.24
319.75
(10MHz crystal
433 MHz band,2.5KHz step
430.24
439.75
used)
868 MHz band,5KHz step
860.48
879.51
915 MHz band,7.5KHz step
900.72
929.27
frequency
315 MHz band,2.5KHz step
248.19
255.80
(8MHZ crystal
433 MHz band,2.5KHz step
344.19
351.80
used)
868 MHz band,5KHz step
688.38
703.61
915 MHz band,7.5KHz step
720.57
743.41
frequency
315 MHz band,2.5KHz step
372.28
383.71
(12MHZ crystal
433 MHz band,2.5KHz step
516.28
527.71
used)
868 MHz band,5KHz step
1032.5
1055.4
915 MHz band,7.5KHz step
1080.8
1115.1
Receiver
1
60
67
75
bandwidth
2
120
134
150
3
180
200
225
4
240
270
300
5
300
350
375
6
360
400
450
PLL lock time
After 10MHz step hopping,
20
MHz
MHz
MHz
KHz
us
frequency error <10 kHz
BR
Data rate
With internal digital
0.6
115.2
kbps
256
kbps
-96
dBm
demodulator
BRA
Data rate
With external RC filter
Pmin
sensitivity
BW=134KHz,BR=1.2kbps
-102
AFCrange
AFC working range
dfFSK FSK deviation in the
0.8*
received signal
dfFSK
RSA
RSSI accuracy
±5
dB
RSR
RSSI range
46
dB
CARSSI
ARSSI filter
1
nF
RSSTEP
RSSI
6
dB
500
us
programmable step
RSRESP
DRSSI response
RSSI output high after
time
valid , CARRSI=5nF
AC characteristic(Transmitter)
symbol
parameter
remark
Pmax
Available output power with
315/433MHZ band
8
optimal antenna impedance
868/915MHZ band
0
Typical output power
Selectable in 3 dB
Pout
min
Pmax-21
typical
max
dbm
Pmax
steps
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Unit
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dbm
RFM12
Co
Output capacitance
In low bands
2
2.6
3.2
pf
(set by the automatic antenna
In high bands
2.1
2.7
3.3
Quality factor of the output
In low bands
13
15
17
capacitance
In high bands
8
10
12
Output phase noise
100 kHz from carrier
-75
1 MHz from carrier
-85
tuning circuit)
Qo
Lout
BR
FSK bit rate
dffsk
FSK frequency deviation
Programmable in 15
15
dbc/HZ
256
kbps
240
kHZ
kHz steps
AC characteristic(Turn-on/Turnaround timings)
symbol
parameter
remark
Tst
Crystal oscillator startup
Crystal ESR < 100
min
typical
max
Unit
5
ms
time
Ttx_rx_XTAL_ON
Trx_tx_XTAL_ON
Ttx_rx_SYNT_ON
Trx_tx_SYNT_ON
Cxl
tPOR
Transmitter - Receiver
Synthesizer off, crystal
turnover time
oscillator on
Receiver - Transmitter
Synthesizer off, crystal
turnover time
oscillator on
Transmitter - Receiver
Synthesizer on, crystal
turnover time
oscillator on
Receiver - Transmitter
Synthesizer on, crystal
turnover time
oscillator on
Crystal load
Programmable in 0.5 pF steps,
capacitance
tolerance+/- 10%
Internal POR timeout
After Vdd has reached 90% of
450
us
350
us
425
us
300
us
8.5
16
pf
100
ms
1.05
ms
2
pf
10
ns
final value
tPBt
Wake-up timer clock
Calibrated every 30 seconds
0.96
period
Cin, D
Digital input apacitance
tr, f
Digital output rise/fall
15pF pure capacitive load
time
Field testing range
Band
Test condition
Distance
315MHz band
Receiver bandwidth=67KHz,data rate =1.2kbps,Transmitter frequency
>100M
deviation =45KHZ(matches with RFM12)in free open area
433MHz band
Receiver bandwidth =67KHz, data rate=1.2kbps, transmitter frequency
>150M
deviation =45KHZ(matches with RFM12)In free open area
868MHz band
Receiver bandwidth=67KHz,data rate =1.2kbps,Transmitter frequency
>100M
deviation =45KHZ(matches with RFM12)in free open area
915MHz band
Receiver bandwidth=67KHz,data rate =1.2kbps,Transmitter frequency
deviation =45KHZ(matches with RFM12)in free open area
Tel: +86-755-82973806
Fax: +86-755-82973550 E-mail: [email protected]
http://www.hoperf.com
>100M
RFM12
SGS Reports
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RFM12
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RFM12
Mechanical Dimension
(units in mm)
SMD PACKAGE(S1)
SMD PACKAGE(S2)
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RFM12
DIP PACKAGE(D)
Module Model Definition
model=module-operation band
RFM12 – 433-D/S
module type
operation band
Package
example:1,RFM12 module at 433MHz band, DIP : RFM12-433-D。
2,RFM12 module at 868MHZ band, SMD, thickness at 4.2mm: RFM12-868-S1。
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Fax: +86-755-82973550 E-mail: [email protected]
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RFM12
This document may contain preliminary information and is subject to
change by Hope Microelectronics without notice. Hope
Microelectronics assumes no responsibility or liability for any use of
the information contained herein. Nothing in this document shall
operate as an express or implied license or indemnity under the
intellectual property rights of Hope Microelectronics or third parties.
HOPE MICROELECTRONICS CO.,LTD
The products described in this document are not intended for use in
Rm B.8/F LiJingGe Emperor Regency 6012
implantation or other direct life support applications where malfunction
ShenNan Rd., Shenzhen,China
may result in the direct physical harm or injury to persons. NO
Tel:
WARRANTIES OF ANY KIND, INCLUDING, BUT NOT LIMITED TO,
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Fax:
Email:
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[email protected]
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THE IMPLIED WARRANTIES OF MECHANTABILITY OR FITNESS
FOR A ARTICULAR PURPOSE, ARE OFFERED IN THIS
DOCUMENT.
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