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DWM-RTS4438 is the Small Size(15.0*12.5*2.0mm) which built by the Silicon RF chipset Si4438 which max power output is +20dBm 433.92MHz Free band SRD Wireless Transceiver Module transmission range can reach to 1800 meters.
(edit with the Customer Reassurance module)
(edit with the Customer Reassurance module)
(edit with the Customer Reassurance module)
Brief introduction
HPD8402C wireless transceiver module SI4438 Silicon Labs' high-performance wireless transceiver chip design, low power consumption, long distance, the industry's smallest. Module integrates all RF related functions and devices, users do not need in-depth understanding of RF circuit design, you can use this module to easily develop a stable performance, high reliability wireless products.
Features
Technical Specifications:
1. Operating voltage: 1.8 ~ 3.6V
2. Receiving Current: 14mA
3. Emission current: 80mA/ 20dBm
4. Working temperature: -30 ° ~ + 75 °
5. Operating frequency: 433MHz
6. Transmit power: + 20dBm
7. Receiving sensitivity: -123dBm/ 1.2Kbps
8. Frequency error: +/- 5KHz
9. FIFO space: 64Byte
10. Data Rate: 100bps ~ 500Kbps
11. Modulation: FSK/GFSK/MSK/ASK
12. Interface Type: 4-wire SPI interface
13. Digital RSSI function
14. Automatic frequency correction (AFC)
15. Automatic Gain Control (AGC)
16. RF exchange wake support feature (WOR)
17. Low-voltage detection and temperature sensor function
18. Sleep current: 1uA
19. In line with standard IEEE 802.15.4g
20. Dimensions: 15.0*12.5*2.0mm
Applications:
1. Remote telemetry
2. Industrial Controls
3. Security alarm
4. Smart Home
5. collecting data
6. Healthcare
7. Energy Monitoring
8. automated industry
DC Characters
|
Description |
MIN |
MAX |
Unit |
|
Operating voltage |
1.8 |
3.6 |
V |
|
Operating Current |
RX <14mA |
TX=75mA@20dbm |
mA |
|
Standby Current |
|
<1uA |
uA |
|
IO Port voltage |
Vss-0.3 |
Vdd+0.3 |
V |
|
Temperatures |
-40 |
85 |
℃ |
RF performance(Test Temperature 25℃,VCC 3.3V)
|
NUM |
Characters |
Parameters |
Unit |
||
|
|
|
MIN |
Typical |
MAX |
|
|
1 |
Frequency Range |
425 |
433.92 |
525 |
MHz |
|
2 |
Power Output |
-20 |
|
20 |
dBm |
|
3 |
Sensitivity |
|
-121 |
|
dBm |
|
4 |
Modulation |
GFSK |
2-FSK |
OOK |
MSK |
|
5 |
Data rate |
1.2 |
|
500 |
Kbps |
|
6 |
Harmonic Power |
-45 |
—— |
-35 |
dBm |
|
7 |
Transmission Range |
1200 |
|
1800 |
M |
|
8 |
OOK,Sensitivity |
|
-110 |
|
dBm |
|
9 |
OOK,Data Rate |
|
|
120 |
Kbps |
|
10 |
Standby Current |
|
|
0.9 |
MHz |
|
11 |
Crystal Precision |
|
10 |
|
PPM |
Pin Definition for module

|
PIN |
DEFINE |
Function Description |
Note |
|
1 |
VDD |
Power Supply 3.3V |
RF VDD |
|
2 |
TXRAMP |
The output of external PA, |
|
|
3 |
GPIO_0 |
GPIO0 |
|
|
4 |
GPIO_1 |
GPIO1 |
|
|
5 |
NIRQ |
The interrupt input pin, (Low Level) |
Configure register |
|
6 |
SCLK |
SCLK (SPI) |
|
|
7 |
MISO |
MISO (SPI) |
|
|
8 |
MOSI |
MOSI (SPI) |
|
|
9 |
NSEL |
NSEL(SPI) |
|
|
10 |
GPIO_2 |
GPIO2 |
|
|
11 |
GPIO_3 |
GPIO3 |
|
|
12 |
SDN |
Close the SDN = 0 or 1 reference input pin IC specification |
|
|
15 |
ANT |
Antenna interface, the standard 50 Ω antenna |
|
|
14、16 |
GND |
GND |
13 PIN NC |
Typical Application



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DWM-RTS4438 is the Small Size(15.0*12.5*2.0mm) which built by the Silicon RF chipset Si4438 which max power output is +20dBm 433.92MHz Free band SRD Wireless Transceiver Module transmission range can reach to 1800 meters.
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