315/433/868/915 MHz RF Transceiver Module

Product Detail

315/433/868/915 MHz RF Transceiver Module

1. 315/433/868/915 MHz RF Transceiver Module Description

The RY1276 RF transceivers module feature the LoRaTM long range modem that provides ultra-long range spread spectrum communication and high interference immunity whilst minimising current consumption.

Using Semtech’s patented LoRaTM modulation technique SX1276 can  achieve  a  sensitivity of  over  -148dBm using a low cost crystal and bill of materials. The high sensitivity combined with the integrated +20 dBm power amplifier    yields industry    leading    link    budget    making    it optimal  for  any  application requiring  range  or robustness.  LoRaTM  also  provides  significant  advantages  in  both  blocking  and  selectivity  over  conventional modulation techniques, solving the traditional design compromise between range, interference immunity and energy consumption.

These devices also support high performance (G)FSK modes for systems including WMBus, IEEE802.15.4g. The SX1276 deliver exceptional phase noise, selectivity, receiver linearity and IIP3 for significantly lower current consumption than competing devices.

 2. Applications of 315/433/868/915 MHz RF Transceiver Module

* Automated Meter Reading.

* Home and Building Automation.

* Wireless Alarm and Security Systems.

* Industrial Monitoring and Control

* Long range Irrigation Systems

3. Features of 315/433/868/915 MHz RF Transceiver Module

* LoRaTM Modem

* 168 dB maximum link budget

* +20 dBm - 100 mW constant RF output vs. V supply

* +14 dBm high efficiency PA

* Programmable bit rate up to 300 kbps

* High sensitivity: down to -148 dBm

* Bullet-proof front end: IIP3 = -11 dBm

* Excellent blocking immunity

* Low RX current of 9.9 mA, 200 nA register retention

* Fully integrated synthesizer with a resolution of 61 Hz

* FSK, GFSK, MSK, GMSK, LoRaTMand OOK modulation

* Built-in bit synchronizer for clock recovery

* Preamble detection

* 127 dB Dynamic Range RSSI

* Automatic RF Sense and CAD with ultra-fast AFCf

* Packet engine up to 256 bytes with CRC

* Built-in temperature sensor and low battery retention

4. Pin Diagram of 315/433/868/915 MHz RF Transceiver Module




 

5. Pin Description of 315/433/868/915 MHz RF Transceiver Module

  

Number	Name	Type	D
1	VCC	I	Supply voltage for moudule.
2	RESET	I	Reset trigger input.
3	DIO0	I/O	Digital I/O, software configured.
4	DIO2	I/O	Digital I/O, software configured.
5	SCK	I	SPI Clock input.
6	MISO	O	SPI Data output.
7	MOSI	I	SPI Data input.
8	NSS	I	SPI Chip select input
9,11-13	GND	I	Ground.
10	ANT	0	RF Output

6.  Electrical Characteristics of 315/433/868/915 MHz RF Transceiver Module

6.1. ESD Notice

The RY1276 is a high performance radio frequency device. It satisfies:

* Class 2 of the JEDEC standard JESD22-A114-B (Human Body Model) on all pins.

* Class III of the JEDEC standard JESD22-C101C (Charged Device Model) on all pins

It should thus be handled with all the necessary ESD precautions to avoid any permanent damage.

6.2. Absolute Maximum Ratings

Stresses above the values listed below may cause permanent device failure. Exposure to absolute maximum ratings for extended periods may affect device reliability.

Table 3 Absolute Maximum Ratings

  

Symbol	Description	Min	Max	Unit
VDDmr	Supply Voltage	-0.5	3.9	V
Tmr	Temperature	-55	+115	° C
Tj	Junction temperature	-	+125	° C
Pmr	RF Input Level	-	+10	dBm

Note Specific ratings apply to +20 dBm operation (see Section 5.4.3).

 6.3. Operating Range

Table 1 Operating Range

  

Symbol	Description	Min	Max	Unit
VDDop	Supply voltage	1.8	3.7	V
Top	Operational temperature range	-40	+85	°C
Clop	Load capacitance on digital ports	-	25	pF
ML	RF Input Level	-	+10	dBm

Note A specific supply voltage range applies to +20 dBm operation (see Section 5.4.3).

7. Power Consumption of 315/433/868/915 MHz RF Transceiver Module


Table 3 Power Consumption Specification

  

Symbol	Description		Conditions	Min	Typ	Max	Unit
IDDSL	Supply current in Sleep mode			-	0.2	1	uA
IDDIDLE	Supply current in Idle mode	RC oscillator enabled		-	1.5	-	uA
IDDST	Supply current in Standby mode	Crystal oscillator enabled		-	1.6	1.8	mA
IDDFS	Supply current in   Synthesizer mode	FSRx		-	5.8	-	mA
IDDR	Supply current in Receive mode	LnaBoost Off, band 1   LnaBoost On, band 1		-   -	10.8   11.5	-   -	mA
IDDT	Supply current in Transmit mode with impedance	RFOP = +20 dBm, on PA_BOOST RFOP = +17 dBm, on PA_BOOST RFOP = +13 dBm, on RFO_LF/HF pin RFOP = + 7 dBm, on		-   -   -	120   87   29	-   -   -	m   A

8. Frequency Synthesis of 315/433/868/915 MHz RF Transceiver Module

Table 4 Frequency Synthesizer Specification

  

Symbol	Description	Conditions	Min	Typ	Max	Unit
FR	Synthesizer frequency range	Band 1   Programmable Band 2	137   410	-   -	175   525	MHz
FXOSC	Crystal oscillator frequency		-	32	-	MHz
TS_OSC	Crystal oscillator wake-up time		-	250	-	us
TS_FS	Frequency synthesizer wake-up time to PllLock	From Standby mode	-	60	-	us


  

TS_HOP	Frequency synthesizer hop time   at most 10 kHz away from the tar- get frequency	200 kHz step   1 MHz step   5 MHz step   7 MHz step   12 MHz step	-   -   -   -   -	20   20   50   50   50	-   -   -   -   -	us us us us us
FSTEP	Frequency synthesizer step	FSTEP = FXOSC/219	-	61.0	-	Hz
FRC	RC Oscillator frequency	After calibration	-	62.5	-	kHz
BRF	Bit rate, FSK	Programmable values (1)	1.2	-	300	kbps
BRA	Bit rate Accuracy, FSK	ABS(wanted BR - available BR)	-	-	250	ppm
BRO	Bit rate, OOK	Programmable	1.2	-	32.768	kbps
BR_L	Bit rate, LoRa Mode	From SF6, BW=500kHz to   SF12, BW=7.8kHz	0.018	-	37.5	kbps
FDA	Frequency deviation, FSK (1)	Programmable   FDA + BRF/2 =< 250 kHz	0.6	-	200	kHz

Note For Maximum Bit rate the maximum modulation index is 0.5.


9. FSK/OOK Mode Receiver 

 All receiver tests are performed with RxBw = 10 kHz (Single Side Bandwidth) as programmed in RegRxBw, receiving a PN15 sequence. Sensitivities are reported for a 0.1% BER (with Bit Synchronizer enabled), unless otherwise specified. Blocking tests are performed with an unmodulated interferer. The wanted signal power for the Blocking Immunity, ACR, IIP2, IIP3 and AMR tests is set 3 dB above the receiver sensitivity level.

Table5   FSK/OOK Receiver Specification

  

Symbol	Description	Conditions	Min	Typ	Max	Unit
RFS_F_LF	Direct tie of RFI and RFO pins, shared Rx, Tx paths FSK sensitiv- ity, highest LNA gain. Bands 2&3	FDA = 5 kHz,     BR = 1.2 kb/s FDA = 5 kHz,     BR = 4.8 kb/s FDA = 40 kHz, BR = 38.4 kb/s* FDA = 20 kHz, BR = 38.4 kb/s**	-   -   -   -	-121   -117   -107   -108	-   -   -   -	dBm dBm dBm dBm
	Split RF paths, the RF switch insertion loss is not accounted for. Bands 2&3	FDA = 5 kHz,     BR = 1.2 kb/s FDA = 5 kHz,     BR = 4.8 kb/s FDA = 40 kHz, BR = 38.4 kb/s* FDA = 20 kHz, BR = 38.4 kb/s**	-   -   -   -	-123   -119   -109   -110	-   -   -   -	dBm dBm dBm dBm
RFS_F_HF	Direct tie of RFI and RFO pins, shared Rx, Tx paths FSK sensitiv- ity, highest LNA gain. Band 1	FDA = 5 kHz,     BR = 1.2 kb/s FDA = 5 kHz,     BR = 4.8 kb/s FDA = 40 kHz, BR = 38.4 kb/s* FDA = 20 kHz, BR = 38.4 kb/s**	-   -   -   -	-119   -115   -105   -105	-   -   -   -	dBm dBm dBm dBm
	Split RF paths, LnaBoost is turned on, the RF switch insertion loss is not accounted for. Band 1	FDA = 5 kHz,     BR = 1.2 kb/s FDA = 5 kHz,     BR = 4.8 kb/s FDA = 40 kHz, BR = 38.4 kb/s* FDA = 20 kHz, BR = 38.4 kb/s**	-   -   -   -	-123   -119   -109   -109	-   -   -   -	dBm dBm dBm dBm
RFS_O	OOK sensitivity, highest LNA gain shared Rx, Tx paths	BR = 4.8 kb/s   BR = 32 kb/s	-   -	-117   -108	-   -	dBm dBm
CCR	Co-Channel Rejection, FSK		-	-9	-	dB
ACR	Adjacent Channel Rejection	FDA = 5 kHz, BR=4.8kb/s   Offset = +/- 25 kHz or +/- 50kHz   Band 3   Band 2   Band 1	-   -   -	60   56   50	-   -   -	dB dB dB
BI_HF	Blocking Immunity, Band 1	Offset = +/- 1 MHz Offset = +/- 2 MHz Offset = +/- 10 MHz	-   -   -	71   76   84	-   -   -	dB dB dB
BI_LF	Blocking Immunity, Bands 2&3	Offset = +/- 1 MHz Offset = +/- 2 MHz Offset = +/- 10 MHz	-   -   -	71   72   78	-   -   -	dB   dB   dB


  

IIP2	2nd order Input Intercept Point   Unwanted tones are 20 MHz	Highest LNA gain	-	+55	-	dBm
IIP3_HF	3rd order Input Intercept point   Unwanted tones are 1MHz and   1.995 MHz above the LO	Band 1   Highest LNA gain G1   LNA gain G2, 5dB sensitivity hit	-   -	-11   -6	-   -	dBm dBm
IIP3_LF	3rd order Input Intercept point   Unwanted tones are 1MHz and   1.995 MHz above the LO	Band 2   Highest LNA gain G1   LNA gain G2, 2.5dB sensitivity hit	-   -	-22   -15	-   -	dBm dBm
		Band 3   Highest LNA gain G1   LNA gain G2, 2.5dB sensitivity hit	-   -	-15   -11	-   -	dBm dBm
BW_SSB	Single Side channel filter BW	Programmable	2.7	-	250	kHz
IMR	Image Rejection	Wanted signal 3dB over sensitivity   BER=0.1%	-	50	-	dB
IMA	Image Attenuation		-	57	-	dB
DR_RSSI	RSSI Dynamic Range	AGC enabled Min   Max	-   -	-127   0	-   -	dBm dBm

* RxBw = 83 kHz (Single Side Bandwidth)

** RxBw = 50 kHz (Single Side Bandwidth)

*** RxBw = 250 kHz (Single Side Bandwidth)

10. FSK/OOK Mode Transmitter

Table 6 Transmitter Specification

  

Symbol	Description	Conditions	Min	Typ	Max	Unit
RF_OP	RF output power in 50 ohms   on RFO pin (High efficiency PA).	Programmable with steps   Max   Min	-   -	+14   -1	-   -	dBm dBm
?RF_ OP_V	RF output power stability on RFO   pin versus voltage supply.	VDD = 2.5 V to 3.3 V VDD = 1.8 V to 3.7 V	-   -	3   8	-   -	dB   dB
RF_OPH	RF output power in 50 ohms, on   PA_BOOST pin (Regulated PA).	Programmable with 1dB steps Max   Min	-   -	+17   +2	-   -	dBm dBm
RF_OPH_ MAX	Max RF output power, on   PA_BOOST pin	High power mode	-	+20	-	dBm
?RF_ OPH_V	RF output power stability on PA_- BOOST pin versus voltage supply.	VDD = 2.4 V to 3.7 V	-	+/-1	-	dB
?RF_T	RF output power stability versus	From T = -40 °C to +85 °C	-	+/-1	-	dB


  

PHN	Transmitter Phase Noise	169 MHz, Band 3   10kHz Offset   50kHz Offset   400kHz Offset	-   -   -	-118   -118   -128	-   -   -	dBc   / Hz
		433 MHz, Band 2   10kHz Offset   50kHz Offset   400kHz Offset	-   -   -   -	-110   -110   -122   -129	-   -   -   -	dBc   / Hz
		868/915 MHz, Band 1   10kHz Offset   50kHz Offset   400kHz Offset   1MHz Offset	-   -   -   -	-103   -103   -115   -122	-   -   -   -	dBc   / Hz
ACP	Transmitter adjacent channel power (measured at 25 kHz offset)	BT=1. Measurement conditions as defined by EN 300 220-1 V2.3.1	-	-	-37	dBm
TS_TR	Transmitter wake up time, to the first rising edge of DCLK	Frequency Synthesizer enabled, PaR- amp = 10us, BR = 4.8 kb/s	-	120	-	us

11. Electrical Specification for LoRaTM Modulation

The table below gives the electrical specifications for the transceiver operating with LoRaTM    modulation. Following conditions apply unless otherwise specified:

* Supply voltage = 3.3 V

* Temperature = 25° C

* fXOSC = 32 MHz

* bandwidth (BW) = 125 kHz

* Spreading Factor (SF) = 12

* Error Correction Code (EC) = 4/6

* Packet Error Rate (PER)= 1%

* CRC on payload enabled

* Output power = 13 dBm in transmission

* Payload length = 64 bytes

* Preamble Length = 12 symbols (programmed register PreambleLength=8)

* With matched impedances

 Table 7 LoRa Receiver Specification

  

Symbol	Description	Conditions	Mi	Typ	Max	Unit
IDDR_L	TM   mode, LnaBoost off	Bands  2&3,  BW=7.8  to  62.5  kHz   Bands  2&3,  BW  =  125  kHz   Bands  2&3,  BW  =  250  kHz	-   -   -	11.0   11.5   12.4	-   -   -	mA   mA   mA
		Band 1, BW=7.8 to 62.5 kHz Band 1, BW = 125 kHz Band  1,  BW  =  250  kHz	-   -   -	9.9   10.3   11.1	-   -   -	mA mA mA
IDDT_L	Supply current in transmitter mode	RFOP = 13 dBm   RFOP = 7 dBm	-   -	28   20	-   -	mA   mA
IDDT_H_L	Supply current in transmitter mode with an external impedance	Using PA_BOOST pin   RFOP = 17 dBm	-	90	-	mA
BI_L	Blocking immunity, CW interferer	offset = +/- 1 MHz offset   = +/- 2 MHz offset = +/-	-	89   94	-	dB   dB
IIP2_L	2nd order Input Intercept Point   Unwanted tones are 20 MHz above	Highest LNA gain	-	+55	-	dBm
IIP3_L_HF	3rd order Input Intercept point   Unwanted tones are 1MHz and 1.995   MHz above the LO	Band 1   Highest LNA gain G1   LNA gain G2, 5dB sensitivity hit	-   -	-11   -6	-   -	dBm dBm







  

Symbol	Description	Conditions	Min.	Typ	Max	Unit
IIP3_L_LF	3rd order Input Intercept point   Unwanted tones are 1MHz and 1.995   MHz above the LO	Band 2   Highest LNA gain G1   LNA gain G2,2.5dB sensitivity hit	-   -	-22   -15	-   -	dBm dBm
RFS_L10_HF	RF sensitivity, Long-Range Mode, highest LNA gain, LnaBoost for Band 1, using split Rx/Tx path	SF = 6   SF = 7   SF = 8	-   -   -	-131   -134   -138	-   -   -	dBm dBm dBm
RFS_L62_HF	RF sensitivity, Long-Range Mode, highest LNA gain, LnaBoost for Band 1, using split Rx/Tx path 62.5 kHz bandwidth	SF = 6   SF = 7   SF = 8   SF = 9   SF = 10	-   -   -   -   -	-121   -126   -129   -132   -135	-   -   -   -   -	dBm dBm dBm dBm   dBm
RFS_L125_HF	RF sensitivity, Long-Range Mode, highest LNA gain, LnaBoost for Band 1, using split Rx/Tx path   125 kHz bandwidth	SF = 6   SF = 7   SF = 8   SF = 9   SF = 10	-   -   -   -   -	-118   -123   -126   -129   -132	-   -   -   -   -	dBm dBm dBm dBm dBm
RFS_L250_HF	RF sensitivity, Long-Range Mode, highest LNA gain, LnaBoost for Band 1, using split Rx/Tx path   250 kHz bandwidth	SF = 6   SF = 7   SF = 8   SF = 9   SF = 10	-   -   -   -   -	-115   -120   -123   -125   -128	-   -   -   -   -	dBm dBm dBm dBm dBm
RFS_L500_HF	RF sensitivity, Long-Range Mode, highest LNA gain, LnaBoost for Band 1, using split Rx/Tx path 500 kHz bandwidth	SF = 6   SF = 7   SF = 8   SF = 9   SF = 10	-   -   -   -   -	-111   -116   -119   -122   -125	-   -   -   -   -	dBm dBm dBm dBm   dBm
RFS_L7.8_LF	RF sensitivity, Long-Range Mode, highest LNA gain, Band 2 or 3, using split Rx/Tx path	SF = 12   SF = 11	-   -	-148   -145	-   -	dBm dBm
RFS_L10_LF	RF sensitivity, Long-Range Mode,   highest LNA gain, Band 3, 10.4 kHz bandwidth	SF = 6   SF = 7   SF = 8	-   -   -	-132   -136   -138	-   -   -	dBm dBm dBm
RFS_L62_LF	RF sensitivity, Long-Range Mode, highest LNA gain, Band 3, 62.5 kHz bandwidth	SF = 6   SF = 7   SF = 8   SF = 9   SF = 10	-   -   -   -   -	-123   -128   -131   -134   -135	-   -   -   -   -	dBm dBm dBm dBm dBm




  

Symbol	Description	Conditions	Min.	Typ	Max	Unit
RFS_L125_LF	RF sensitivity, Long-Range Mode, highest LNA gain, Band 3, 125 kHz bandwidth	SF = 6   SF = 7   SF = 8   SF = 9   SF = 10	-   -   -   -   -	-121   -125   -128   -131   -134	-   -   -   -   -	dBm dBm dBm dBm dBm
RFS_L250_LF	RF sensitivity, Long-Range Mode, highest LNA gain, Band 3 250 kHz bandwidth	SF = 6   SF = 7   SF = 8   SF = 9   SF = 10	-   -   -   -   -	-118   -122   -125   -128   -131	-   -   -   -   -	dBm dBm dBm dBm dBm
RFS_L500_LF	RF sensitivity, Long-Range Mode, highest LNA gain, Band 3 500 kHz bandwidth	SF = 6   SF = 7   SF = 8   SF = 9   SF = 10	-   -   -   -   -	-112   -118   -121   -124   -127	-   -   -   -   -	dBm dBm dBm dBm dBm
CCR_LCW	Co-channel rejection   Single CW tone = Sens +6 dB   1% PER	SF = 7   SF = 8   SF = 9   SF = 10	-   -   -   -	5   9.5   12   14.4	-   -   -   -	dB   dB dB dB
CCR_LL	Co-channel rejection	Interferer is a LoRaTM signal using same BW and same SF. Pw = Sensitivity + 3 dB		-6		dB
ACR_LCW	Adjacent channel rejection	Interferer is 1.5*BW_L from the wanted signal center frequency 1% PER, Single CW tone = Sens + 3 dB	-	60   72	-	dB   dB
IMR_LCW	Image rejection after calibration.	1% PER, Single CW tone = Sens +3 dB	-	66	-	dB
FERR_L	Maximum tolerated frequency offset between transmitter and receiver, no	All BW, +/-25% of BW   The tighter limit applies (see		+/-25%		BW
	Maximum tolerated frequency offset between transmitter and receiver, no	SF = 12   SF = 11	-50   -100	-   -	50   100	ppm ppm

12. Digital Specification of 315/433/868/915 MHz RF Transceiver Module

Conditions: Temp = 25° C, VDD = 3.3 V, FXOSC = 32 MHz, unless otherwise specified.

Table 8 Digital Specification

  

Symbol	Description	Conditions	Min	Typ	Max	Unit
VIH	Digital input level high		0.8	-	-	VDD
VIL	Digital input level low		-	-	0.2	VDD
VOH	Digital output level high	Imax = 1 mA	0.9	-	-	VDD
VOL	Digital output level low	Imax = -1 mA	-	-	0.1	VDD
FSCK	SCK frequency		-	-	10	MHz
tch	SCK high time		50	-	-	ns
tcl	SCK low time		50	-	-	ns
trise	SCK rise time		-	5	-	ns
tfall	SCK fall time		-	5	-	ns
tsetup	MOSI setup time	From MOSI change to SCK rising edge.	30	-	-	ns
thold	MOSI hold time	From SCK rising edge to MOSI   change.	20	-	-	ns
tnsetup	NSS setup time	From NSS falling edge to SCK rising edge.	30	-	-	ns
tnhold	NSS hold time	From SCK falling edge to NSS rising edge, normal mode.	100	-	-	ns
tnhigh	NSS high time between SPI   accesses		20	-	-	ns
T_DATA	DATA hold and setup time		250	-	-	ns

13. Apprication of 315/433/868/915 MHz RF Transceiver Module


 

14. Module Package Outline Drawing of 315/433/868/915MHz RF Transceiver Module


Unit: mm



15. Ordering Information of 315/433/868/915 MHz RF Transceiver Module

  

Model	Part Number	Operation Band
RY1276	RY1276-315	315MHz
RY1276	RY1276-433	433MHz
RY1276	RY1276-868	868MHz
RY1276	RY1276-915	915MHz

16. Module Revisions of 315/433/868/915 MHz RF Transceiver Module

  

Revisions	Date	Updated History
Rev1.0	March 2016	The first final release