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What is RFM01?

This electronic component, produced by the manufacturer "HOPERF", performs the same function as "Universal ISM Band FSK Receiver".


RFM01 Datasheet PDF - HOPERF

Part Number RFM01
Description Universal ISM Band FSK Receiver
Manufacturers HOPERF 
Logo HOPERF Logo 


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RFM01 Universal ISM
Band FSK Receiver
DESCRIPTION
Hoperf’ RFM01 is a single module, low power, multi-channel FSK
receiver designed for use in applications requiring FCC or ETSI
conformance for unlicensed use in the 315, 433, 868, and 915 MHz
bands. Used in conjunction with RFM02, Hoperf’ FSK transmitters,
the RFM01 is a flexible, low cost, and highly integrated solution that
does not require production alignments. All required RF functions are
integrated. Only an external crystal and bypass filtering are needed for
operation.
The RFM01 has a completely integrated PLL for easy RF design, and its
rapid settling time allows for fast frequency hopping, bypassing multipath
fading, and interference to achieve robust wireless links. The PLL’s high
resolution allows the usage of multiple channels in any of the bands. The
baseband bandwidth (BW) is programmable to accommodate various
deviation, data rate, and crystal tolerance requirements. The receiver
employs the Zero-IF approach with I/Q demodulation, therefore no external
components (except crystal and decoupling) are needed in a typical
application. The RFM01 is a complete analog RF and baseband receiver
including a multi-band PLL synthesizer with an LNA, I/Q down converter
mixers, baseband filters and amplifiers, and I/Q demodulator.
The Module dramatically reduces the load on the microcontroller
with integrated digital data processing: data filtering, clock recovery, data
pattern recognition and integrated FIFO. The automatic frequency control
(AFC) feature allows using a low accuracy (low cost) crystal. To minimize
the system cost, the chip can provide a clock signal for the microcontroller,
avoiding the need for two crystals.
For simple applications, the receiver supports a standalone operation
mode. This allows complete data receiver operation and control of four
digital outputs based on the incoming data pattern without a
microcontroller. In this mode, 12 or more predefined frequency channels
can be used in any of the four bands. For low power applications, the
device supports low duty-cycle operation based on the internal wake-up
timer.
FUNCTIONAL BLOCK DIAGRAM
RFM01
FEATURES
Fully integrated (low BOM, easy design-in)
No alignment required in production
Fast settling, programmable, high-resolution PLL
Fast frequency hopping capability
High bit rate (up to 115.2 kbps in digital mode and 256 kbps
in analog mode)
Direct differential antenna input
Programmable baseband bandwidth (67 to 400 kHz)
Analog and digital RSSI outputs
Automatic frequency control (AFC)
Data quality detection (DQD)
Internal data filtering and clock recovery
RX pattern recognition
SPI compatible serial control interface
Clock and reset signals for microcontroller
16 bit RX data FIFO
Standalone operation mode without microcontroller
Low power duty-cycle mode (less than 0.5 mA average
supply current)
Standard 10 MHz crystal reference with in circuit calibration
Alternative OOK support
Wake-up timer
Low battery detector
2.2 to 5.4 V supply voltage
Low power consumption (~9 mA in low bands)
Low standby current (0.3 µA)
Compact 16-pin TSSOP package
TYPICAL APPLICATIONS
Remote control
Home security and alarm
Wireless keyboard/mouse and other PC peripherals
Toy control
Remote keyless entry
Tire pressure monitoring
Telemetry
Personal/patient data logging
Remote automatic meter reading
1
www.hoperf.com
Free Datasheet http://www.datasheet4u.com/

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RFM01 equivalent
Typical Application, Microcontroller Mode
Minimal Microcontroller Mode
VCC
C2 C1
10n 2.2u
P4
P3
P2
P1
P0
nRESET CLKin
SDI 1
SCK 2
nSEL 3
SDO 4
nIRQ 5
nFFS 6
FFIT 7
8
RFM01
16 VDI
15 ARSSI
14
13
12
11
10
9
C3
Antenna
250 Ohm
(optional)
(optional)
X1
10MHz
RFM01
Microcontroller Mode with FIFO usage
VCC
C2 C1
10n 2.2u
P4
P3
P2
P1
P0
nRESET CLKin
SDI 1
SCK 2
nSEL 3
SDO 4
nIRQ 5
nFFS 6
FFIT 7
8
RMF01
16 VDI
15 ARSSI
14
13
12
11
10
9
C3
Antenna
250 Ohm
(optional)
(optional)
X1
10MHz
5
Free Datasheet http://www.datasheet4u.com/


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