RFM210WW HOPE | Alldatasheet
Document overview
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Technical content
Features
Embedded EEPROM y Very Easy Development with RFPDK y All Features Programmable Frequency Range: y 300 to 480 MHz (RFM210W) y 300 to 960 MHz (RFM217W) Symbol Rate: 0.1 to 40 kbps Sensitivity: -108 dBm at 1 kbps, 0.1% BER Configurable Receiver Bandwidth: 50 to 500 kHz 3-wire SPI Interface for EEPROM Programming Stand-Alone, No External MCU Control Required Configurable Duty-Cycle Operation Mode Supply Voltage: 1.8 to 3.6 V Low Power Consumption: 3.8 mA Low Sleep Current y 60 nA when Sleep Timer Off y 440 nA when Sleep Timer On RoHS Compliant Module Size:32*11*5.0mm Descriptions The RFM210W/RFM217W devices are ultra low power, high performance, low-cost OOK stand-alone RF receiver for various 300 to 960 MHz wireless applications. The RFM210WA covers the frequency range from 300 to 480 MHz while the RFM217W covers the 300 to 960 MHz frequency range. They are part of the CMOSTEK NextGenRF TM family, which includes a complete line of transmitters, receivers and transceivers. An embedded EEPROM allows the frequency, symbol rate and other features to be programmed into the device using the QFN16 (3 X3) CMOSTEK USB Programmer and RFPDK. Alternatively, in stock products of 433.92/868.35 MHz are available for immediate demands without the need of EEPROM programming. When the RFM210W/217 is always on, it consumes only 3.8 mA current while achieving -108 dBm GND 13 RFIN 14 GND 15 VDD 16 11 10 9
8 XIN
7 XOUT
6 CLKO
5 DOUT
receiving sensitivity. It consumes even less power when working in duty-cycle operation mode via the built-in sleep timer. The RFM210W/RFM217W receiver together with the RFM11x transmitter enables an ultra low cost RF link. RFM210WW/RFM217W RFM210W/RFM217W
Applications
Low-Cost Consumer Electronics Applications Home and Building Automation Infrared Receiver Replacements Industrial Monitoring and Controls Remote Automated Meter Reading Remote Lighting Control System Wireless Alarm and Security Systems Remote Keyless Entry (RKE)
E‐mail:sales@hoperf.com website://www.hoperf.com P Abbreviations Abbreviations used in this data sheet are described below AGC Automatic Gain Control PC Personal Computer AN Application Notes PCB Printed Circuit Board BER Bit Error Rate PLL Phase Lock Loop BOM Bill of Materials PN9 Pseudorandom Noise 9 BSC Basic Spacing between Centers POR Power On Reset BW Bandwidth DC Direct Current PUP Power Up QFN Quad Flat No-lead EEPROM Electrically Erasable Programmable Read-Only Memory RF Radio Frequency RFPDK RF Products Development Kit ESD Electro-Static Discharge RoHS Restriction of Hazardous Substances ESR Equivalent Series Resistance RSSI Received Signal Strength Indicator Ext Extended Rx Receiving, Receiver IF Intermediate Frequency SAR Successive Approximation Register LNA Low Noise Amplifier SPI Serial Port Interface LO Local Oscillator TH Threshold LPOSC Low Power Oscillator Tx Transmission, Transmitter Max Maximum Typ Typical MCU Microcontroller Unit USB Universal Serial Bus Min Minimum VCO Voltage Controlled Oscillator MOQ Minimum Order Quantity WOR Wake On Radio NP0 Negative-Positive-Zero XOSC Crystal Oscillator NC Not Connected XTAL/Xtal Crystal OOK On-Off Keying Rev 1.0 | Page 1 / 20
E‐mail:sales@hoperf.com website://www.hoperf.com Table of Contents Rev 1.0 | Page 3 / 20
- Electrical Characteristics
1.1 Recommended Operation Conditions
Table 3. Recommended Operation Conditions
1.2 Absolute Maximum Ratings
Table 4. Absolute Maximum Ratings[1] conditions for extended periods may affect device reliability. [2]. The RFM210W/RFM217W is high-performance RF integrated circuits with VCON/P pins having an ESD rating < 2 kV HBM. Handling and assembly of this device should only be done at ESD-protected workstations. to prevent permanent damage.
1.3 Receiver Specifications
Table 5. Receiver Specifications
1.4 Crystal Oscillator
Table 6. Crystal Oscillator Specifications capacitor is required)with peak-to-peak amplitude of 0.3 to 0.7 V. dependence.The acceptable crystal tolerance depends on RF frequency and channel spacing/bandwidth. [3]. This parameter is to a large degree crystal dependent.
1.5 LPOSC
Table 7. LPOSC Specifications [2]. Frequency drifts when temperature changes after calibration. [3]. Frequency drifts when supply voltage changes after calibration.
Figure 2. Pin Diagram Table 6. RFM210W/RFM217W Pin Descriptions
1 GND I Ground
2 DATA O Received data output
3 VDD I Power supply input
4 CLK I 3-wire SPI clock input for EEPROM programming
5 SDA I/O 3-wire SPI data input and output for EEPROM
6 CSB I 3-wire SPI chip select input for EEPROM
7 GND I Ground
8 ANT I RF signal input to the LNA
9 GND I Ground
10 GND I Ground
868.35 MHz
433.92 MHz
- Typical Performance Characteristics
Figure 4. Current vs. Voltage, FRF = 433.92 /
868.35 MHz, SR = 1 ksps
Figure 3. Current vs. Temperature, FRF = Figure 6. Sensitivity vs. Supply Voltage, SR Figure 5. Sensitivity vs. Temperature, FRF = 433.92 Figure 7. Sensitivity vs. SR, FRF = 433.92 / Figure 8. Sensitivity vs. BER, FRF = 433.92
E‐mail:sales@hoperf.com website://www.hoperf.com 4. Typical Application Schematic Figure 9: Typical Application Schematic Rev 1.0 | Page 9 / 20
26 MHz
Figure 10. Functional Block Diagram
5.1 Overview
architecture facilitates a very low external component count and does not suffer from powerline - induced interference problems. demodulated signal is output to the external MCU via the DOUT pin. No external MCU control is needed in the applications. MHz. The RFM210W/RFM217W receiver together with the CMT211x transmitter enables an ultra low cost RF link.
5.2 Modulation, Frequency and Symbol Rate
E‐mail:sales@hoperf.com website://www.hoperf.com Rev 1.0 | Page 10 / 20
Table 10. Modulation, Frequency and Symbol Rate
5.3 Embedded EEPROM and RFPDK
devices during the mass production. See the figure below for the accessing of the EEPROM. Figure 11. Accessing Embedded EEPROM Link Development Kits Users Guide”.
5.4 All Configurable Options
options in “Basic Mode” are a subset of that in the “Advanced Mode”.
Table 11. Configurable Parameters in RFPDK 300 to 960 MHz, with resolution of 0.001 MHz.
868.350 MHz
to 40 ksps, with resolution of 0.1 ksps. the noise, the range is from 0 to 255. ms. It is only available when WOR is on. RSSI. It is only available when WOR is on. only available when System Clock Output is on.
6.5 MHz
E‐mail:sales@hoperf.com website://www.hoperf.com Category Parameters Descriptions Default Mode Turn on/off the RSSI peak drop function, the Decode Settings Peak Drop Peak Drop Step Peak Drop Rate AGC Preamble options are on, or off. The RSSI peak drop step, the options are: 1, 2, 3, 5, 6, 9, 12 or 15. The RSSI peak drop rate, the options are: 1 step/4 symbols, 1 step/2 symbols, 1 step /1 symbol, or 1 step/0.5 symbol. Automatic Gain Control, the options are: on or off. The size of the valid preamble, the options are: 1-byte, 2-byte, 3-byte, or 4-byte. It is only available when WOR is on. On Advanced
1 Advanced
5.5 Internal Blocks Description
5.5.1 RF Front-end and AGC
The RFM210W/RFM217W features a low-IF receiver. The RF front-end of the receiver consists of a Low Noise Amplifier (LNA), I/Q mixer and a wide-band power detector. Only a low-cost inductor and a capacitor are required for matching the LNA to any common used antennas. The input RF signal induced on the antenna is amplified and down-converted to the IF frequency for further processing. By means of the wide-band power detector and the attenuation networks built around the LNA, the Automatic Gain Control (AGC) loop regulates the RF front-end’s gain to get the best system linearity, selectivity and sensitivity performance, even though the receiver suffers from strong out-of-band interference.
5.5.2 IF Filter
The signals coming from the RF front-end are filtered by the fully integrated 3rd-order band-pass image rejection IF filter which achieves over 35 dB image rejection ratio typically. The IF center frequency is dynamically adjusted to enable the IF filter to locate to the right frequency band, thus the receiver sensitivity and out-of-band interference attenuation performance are kept optimal despite the manufacturing process tolerances. The IF bandwidth is automatically computed according to the three basic system parameters input from the RFPDK: RF frequency, Xtal tolerance, and symbol rate.
5.5.3 RSSI
The subsequent multistage I/Q Log amplifiers enhance the output signal from IF filter before it is fed for demodulation. Receive Signal Strength Indicator (RSSI) generators are included in both Log amplifiers which produce DC voltages that are directly proportional to the input signal level in both of I and Q path. The resulting RSSI is a sum of both these two paths. Extending from the nominal sensitivity level, the RSSI achieves over 66 dB dynamic range. The RFM210W/RFM217W integrates a patented DC-offset cancellation engine. The receiver sensitivity performance benefits a lot from the novel, fast and accurate DC-offset removal implementation.
5.5.4 SAR ADC
The on-chip 8-bit SAR ADC digitalizes the RSSI for OOK demodulation.
5.5.6 LPOSC
An internal 1 kHz low power oscillator is integrated in the RFM210W/RFM217W. It generates a clock to drive the sleep timer to Rev 1.0 | Page 13 / 20
scheme allows the LPOSC to maintain its frequency tolerance to less than ±1%.
5.6 Operation Mode
two operation modes, as shown in the figure below. Figure 12. Two different operation modes is turned off in the always receive mode, while it must be turned on and calibrated during the PUP in the duty-cycle receive mode. The average current of the PUP sequence is about 0.9 mA. to settle. The current consumption in this state is about 520 uA. takes approximately 300 us to complete the tuning sequence. The current consumption in this state is about 2 mA. current in this state is about 3.8 mA.
5.7 Always Receive Mode
E‐mail:sales@hoperf.com website://www.hoperf.com If the duty-cycle receive mode is turned off, the device will go through the Power Up (PUP) sequence, stay in the SLEEP state for about 3 ms, tune the receive frequency, and finally stay in the RX state until the device is powered down. The power up sequence, which takes about 4 ms to finish, includes the task of turning on the crystal and calibrating the internal blocks. The device will continuously receive the incoming RF signals during the RX state and send out the demodulated data on the DOUT pin. The configurable system clock is also output from the CLKO pin if it is enabled in the Advanced Mode on the RFPDK. The figure below shows the timing characteristics and current consumption of the device from the PUP to RX. Rev 1.0 | Page 15 / 20
Figure 13. Timing and Current Consumption for Always Receive Mode
5.8 Duty-Cycle Receive Mode
Receive Mode. This is because the LPOSC, which drives the sleep timer, must be calibrated during the PUP. Figure 14. Timing and Current Consumption for Duty-Cycle Receive Mode Maintaining the highest performance of the device by regular frequency re-tune. Increasing the system stability by regular sleep (resetting most of the blocks). Saving power consumptions of both of the Tx and Rx device. As long as the Sleep Time and Rx Time are properly configured, the transmitted data can always be captured by the device.
5.9 Easy Duty-Cycle Configurations
Figure 15. Tx and Rx relationship of Easy Configuration Set the Sleep Time to the minimum value of 3 ms. Set the Rx Time to 1 second which is much longer than the packet length. Let the Tx device to send out 3 continuous data packets in each transmission. have a change to corrupt no more than 2 packets receiving. During the non-receive time period, the DOUT pin will output logic 0. observe the DOUT pin status to perform data capturing and further data processing. If the system power consumption is a sensitive and important factor in the application, the Precise Configuration can be used.
E‐mail:sales@hoperf.com website://www.hoperf.com 6. Ordering Information RFM210W-433 S1 Package Operation Band Mode Type P/N: RFM210W-315S1 RFM210W module at 315MHz band,SMD Package P/N: RFM210W-433S1 RFM210W module at 433MHz band,SMD Package P/N: RFM217W-868S1 RFM217W module at 868MHz band,SMD Package P/N: RFM217W-915S1 RFM217W module at 915MHz band,SMD Package Rev 1.0 | Page 18 / 20
E‐mail:sales@hoperf.com website://www.hoperf.com 7. Package Outline Figure 13 S1 Package Outline Drawi Rev 1.0 | Page 19 / 20
E‐mail:sales@hoperf.com website://www.hoperf.com 8. Contact Information HOPE MICROELECTRONICS CO.,LTD Add: 2/ F, Building 3, Pingshan Private Enterprise Science and Technology Park, Lishan Road, XiLi Town, Nanshan District, Shenzhen, Guangdong, China Tel: 86-755-82973805 Fax: 86-755-82973550 Email: sales@hoperf.com Website: http://www.hoperf.com http://www.hoperf.cn HOPE MICROELECTRONICS CO.,LTD Add: 2/ F, Building 3, Pingshan Private Enterprise Science and Technology Park, Lishan Road, XiLi Town, Nanshan District, Shenzhen, Guangdong, China Tel: 86-755-82973805 Fax: 86-755-82973550 Email: sales@hoperf.com Website: http://www.hoperf.com http://www.hoperf.cn 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. The products described in this document are not intended for use in implantation or other direct life support applications where malfunction may result in the direct physical harm or injury to persons. NO WARRANTIES OF ANY KIND, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MECHANTABILITY OR FITNESS FOR A ARTICULAR PURPOSE, ARE OFFERED IN THIS DOCUMENT. ©2006, HOPE MICROELECTRONICS CO.,LTD. All rights reserved. Rev 1.0 | Page 20 / 20