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HOPE MICROELECTRONICS |
HM-R
HM-R series FSK receiver module
General
HM-R series receiver module is specially designed by Hope Microelectronics Co., Ltd.
For replacing those applications that used ASK technology module already. It used together
with HM-T/HM-TP series FSK transmission module. Due to the benefits form FSK
technology, the module is robust to interference, and longer working range can be achieved.
FEATURES
1. Highly integrated, small size
2. Hi sensitivity, low power consumption
3. FSK technology, suitable for replacing ASK modules
4. Less interference, longer working range
5. Can be used to replace ASK module pair W/O software modification
6. No manual tuning required during production
The module
HM-R receiver module
Pins name
Note: ENABLE active hi make module work and low sleep the module.
It is recommended than keep ENABLE low while power on, and then active it after
module initialization
Tel: +86-755-82973806 Fax: +86-755-82973550 E-mail: [email protected] http://www.hoperf.com
HM-R
Application
Pin to pin replace the old ASK module pair. Special design can be made for more
sophisticated application.
MCU
/Encoder
DATA
HM-T TX
MODULE
HM-R RX
module
MCU
DATA
/decoder
Specification
1. DC parameter
Min Typ Max
Power supply
2.5
3
5
Temperature
-35
80
Data rate
600
4800
9600
Note: Data rate can be customize from 300bps to 100kbps
Unit
V
℃
bps
2. Performance
VCC=3V,T=25℃
Model
Condition
HM-R433 HM-R868 HM-R915 单位
Frequency
434 869 915 MHz
Sensitivity
-97 -98 -99 dBm
RX current
9 10 11 mA
Work with HM-T
240
160
250
m
Reliable range Work with HM-R
260
290
370
m
Note: 1.Range test conditions:1.Open area; 2.Antenna is about 2m above ground.
2. If 5V power supplied, even longer range is possible, however more power be consumed
Naming
HM-R 433
R—RX module
Part code
Frequency band:433—434MHz;
868—869MHz;
915—915MHz。
Tel: +86-755-82973806 Fax: +86-755-82973550 E-mail: [email protected] http://www.hoperf.com
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