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PDF RFM210LW Data sheet ( Hoja de datos )
| Número de pieza | RFM210LW | |
| Descripción | high performance OOK stand-alone RF receiver | |
| Fabricantes | HOPERF | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de RFM210LW (archivo pdf) en la parte inferior de esta página. Total 17 Páginas | ||
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Features
Frequency Range: 315 /433.92 MHz
Symbol Rate: 0.1 to 3.4 kbps
Sensitivity: -108dBm at 2.4 kbps, 0.1% BER
Receiver Bandwidth: 200 kHz
Image Rejection Ratio: 25 dB
Large Signal Handling:10 dBm
Supply Voltage: 1.8 to 3.6 V
Low Power Consumption: 3.8 Ma
3.3 mA @ 315 MHz
3.8 mA @ 433.92 MHz
Low Sleep Current
RoHS Compliant
Module Size:32*11*5.0mm
RFM210LW
RFM210LW
Descriptions
The RFM210LW is an ultra low-cost, low power,
high performance OOK stand-alone RF receiver for
315/433.92MHz wireless applications. It is part of
the CMOSTEK NextGenRFTM family, which
includes a complete line of transmitters, receivers
and transceivers. The RFM210LW is a true plug-
and- run device, no register configuration and
manually- tune is required. The RFM210LW
operates from
1.8 V to3.6 V, finely work till the end of most
batteries’ power. It consumes 3.3 mA current while
achieving -109 dBm receiving sensitivity at 315
MHz and consumes 3.8 mA current while
achieving -108 dBm receiving sensitivity at433.92
MHz.
Applications
z Low-Cost Consumer Electronics Applications
z Home and Building Automation
z Infrared Receiver Replacements z
Industrial Monitoring and Controls
z Remote Automated Meter Reading
z Remote Lighting Control System
z Wireless Alarm and Security Systems
z Remote Keyless Entry (RKE)
E‐mail:[email protected]
website://www.hoperf.com
Rev 1.0 | Page 1 / 17
1 page  
RFM210LW
1.3 Receiver Specifications
Table 4. Receiver Specifications
Parameter
Frequency Range
Symbol Rate
Sensitivity
Saturation Input Signal
Level
Working Current
Sleep Current
Symbol
FRF
SR
S315
S433.92
Conditions
FRF = 315 MHz, SR = 2.4 kbps, BER =
0.1%
FRF = 433.92 MHz, SR = 1 kbps, BER =
0.1%
Min Typ Max
300 480
0.1 3.4
-109
-108
Unit
MHz
kbps
dBm
dBm
PLVL
10 dBm
IDD
ISLEEP
FRF = 315 MHz
FRF = 433.92 MHz
When sleep timer is off
3.5 mA
3.8 mA
60 nA
Frequency Resolution
Frequency Synthesizer
Settle Time
Blocking Immunity
Image Rejection Ratio
Input 3rd Order Intercept
Point
Receiver Bandwidth
Receiver Start-up Time
FRES
TLOCK From XOSC settled
BI
IMR
IIP3
BW
TSTART-UP
SR = 1 kbps, ±1 MHz offset, CW
interference
SR = 1 kbps, ±2 MHz offset, CW
interference
SR = 1 kbps, ±10 MHz offset, CW
interference
IF = 280 kHz
Two tone test at 1 MHz and 2 MHz
offset frequency. Maximum system
gain settings
From power up to receive
24.8
150
52
74
75
35
-25
200
7.3
Hz
us
dB
dB
dB
dB
dBm
kHz
ms
E‐mail:[email protected]
website://www.hoperf.com
Rev 1.0 | Page 5 / 17
5 Page 
RFM210LW
Table 7. Modulation, Frequency and Symbol Rate
Parameter
Demodulation
Frequency
Frequency Resolution
Symbol Rate
Value
OOK
300 to 480
24.8
0.1 to 3.4
Unit
-
MHz
Hz
kbps
5.3 Main Configurations
Unlike other NextGenRFTM receivers, the RFM210LW does not need any register control or manufacturing programming. The
configuration of the device is fixed in order to save the development effort, reduce system cost and simplify the manufacturing
process. The main configurations are listed in the table below. Please note that if more flexibility is needed in the system, the user
can use other NextGenRFTM receivers like CMT2210A and etc. For those products, an embedded EEPROM is available on chip
for the user to configure all the product features.
5.4 Internal Blocks Description
5.4.1 RF Front-end and AGC
The RFM210LW 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 50
Ω 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.
5.4.2 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
E‐mail:[email protected]
website://www.hoperf.com
Rev 1.0 | Page 11 / 17
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet RFM210LW.PDF ] | |
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