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PDF CMT2210LW Data sheet ( Hoja de datos )
| Número de pieza | CMT2210LW | |
| Descripción | Low-Cost 315/433.92MHz OOK Stand-Alone Receiver | |
| Fabricantes | CMOSTEK | |
| Logotipo |  |
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CMT2210LW
CMT2210LW
Low-Cost 315/433.92 MHz OOK Stand-Alone Receiver
Features
Operation Frequency: 315/433.92 MHz
OOK Demodulation
Symbol Rate: 0.1 to 3.4 ksps
Sensitivity: -108 dBm at 2.4 ksps, 0.1% BER
Receiver Bandwidth: 200 kHz
Image Rejection Ratio: 25 dB
Large Signal Handling: 10 dBm
Stand-Alone, No External MCU Control Required
No Register Configuration Required
Supply Voltage: 1.8 to 3.6 V
Low Power Consumption
3.3 mA @ 315 MHz
3.8 mA @ 433.92 MHz
RoHS Compliant
SOP8 Package
Descriptions
The CMT2210LW is an ultra low-cost, low power, high
performance OOK stand-alone RF receiver for 315/433.92
MHz wireless applications. It is part of the CMOSTEK
NextGenRFTM family, which includes a complete line of
transmitters, receivers and transceivers. The CMT2210LW
is a true plug-and-run device, no register configuration and
manually-tune is required. The device operates at either
315 MHz or 433.92 MHz through selecting an 18.8744 MHz
or 26 MHz crystal, the data rate is optimized to around 2.4
ksps which fits well with the low-end data encoder or MCU
based transmitter. The CMT2210LW operates from 1.8 V to
3.6 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 at
433.92 MHz. The SOP8 package is available for easier and
lower-cost manufacturing. The CMT2210LW receiver
together with the CMT211x transmitter enables an ultra low
cost RF link. For NextGenRFTM receivers with more
flexibility, the user can use the CMT2210AW.
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)
Ordering Information
Part Number Frequency
CMT2210LW-ESR
CMT2210LW-ESB
315/433.92
MHz
315/433.92
MHz
More Ordering Info: See Page 15
Package
SOP8
/T&R
SOP8
/Tube
MOQ
2,500 pcs
1,000 pcs
SOP8
GND
VDD
DOUT
XOUT
1
2
3
4
8 RFIN
7 VCON
6 VCOP
5 XIN
CMT2210LW Top View
Copyright © By CMOSTEK
Rev 0.8 | Page 1/20
www.hoperf.com
1 page  
CMT2210LW
1. Electrical Characteristics
VDD = 3.3 V, TOP = 25 ℃, FRF = 433.92 MHz, sensitivities are measured in receiving a PN9 sequence and matching to 50 Ω
impedance, with the BER of 0.1%. All measurements are performed using the board CMT2210LW-EM V1.0, unless otherwise
noted.
1.1 Recommended Operation Conditions
Table 2. Recommended Operation Conditions
Parameter
Operation Voltage Supply
Operation Temperature
Supply Voltage Slew Rate
Symbol
VDD
TOP
Conditions
Min
1.8
-40
1
Typ
Max
Unit
3.6 V
85 ℃
mV/us
1.2 Absolute Maximum Ratings
Table 3. Absolute Maximum Ratings[1]
Parameter
Symbol
Conditions
Min
Max
Unit
Supply Voltage
Interface Voltage
Junction Temperature
Storage Temperature
Soldering Temperature
ESD Rating[2]
VDD
VIN
TJ
TSTG
TSDR
Lasts at least 30 seconds
Human Body Model (HBM)
-0.3 3.6
V
-0.3 VDD + 0.3
V
-40 125 ℃
-50 150 ℃
255 ℃
-2 2 kV
Latch-up Current
@ 85 ℃
-100 100 mA
Notes:
[1]. Stresses above those listed as “absolute maximum ratings” may cause permanent damage to the device. This is a stress
rating only and functional operation of the device under these conditions is not implied. Exposure to maximum rating
conditions for extended periods may affect device reliability.
[2]. The CMT2210LW 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.
Caution! ESD sensitive device. Precaution should be used when handling the device in order
to prevent permanent damage.
Rev 0.8 | Page 5/20
www.hoperf.com
5 Page 
CMT2210LW
Table 8. Modulation, Frequency and Symbol Rate
Parameter
Demodulation
Frequency
Frequency Resolution
Symbol Rate
Value
OOK
315/433.92
24.8
0.1 to 3.4
Unit
-
MHz
Hz
ksps
5.3 Main Configurations
Unlike other NextGenRFTM receivers, the CMT2210LW 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 CMT2210AW and etc. For those products, an embedded EEPROM is available on
chip for the user to configure all the product features.
Table 9. CMT2210LW Main Configurations
Parameters
RF Settings
Frequency
Modulation
Symbol Rate
Receiver Bandwidth
Xtal Stabilizing Time
Operation
Settings
OOK Settings
Sleep Time
Rx Time
Demod Method
Fixed Demod TH
CMT2210LW-ESR
315/433.92
OOK
0.1 – 3.4
200
310
3
2000
Fixed TH
60
Unit
MHz
-
ksps
kHz
us
ms
ms
-
-
5.4 Internal Blocks Description
5.4.1 RF Front-end and AGC
The CMT2210LW 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
achieves over 25 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 fixed at 200 kHz.
Rev 0.8 | Page 11/20
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