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HOME > PRODUCTS > ASK MODULES > STX885 : 315/433MHZ ASK TRANSMITTER MODULE WITH C...
STX885 : 315/433MHz ASK Transmitter Module With Coded
- STX885 is a highly integrated, low-cost ASK transmitter module with coded that intergrets the ev1527 digital encoding circuit, high-precision oscillating circuit and power amplifier. The module's operating frequency is available in 315MHz and 433MHz. Its integrated high-precision oscillator, which can provides accurate pulse width accuracy for the system.The OOK modulation rate can reach 10kb/s. The design of the two encoding formats reduces the re-code rate and can generate multi-key composite codes to avoid Misoperation of special buttons. The STX885 features small size, low harmonics and is high stability for a wide range of wireless remote control systems.
- STX885 is manufactured and tested strictly using lead-free process and complies with RoHS and Reach standards.
| Parameter | Min. | Typ. | Max. | Unit | Condition |
| Operation Conditions | |||||
| Operating voltage range | 2.0 | 3.0 | 3.6 | V | |
| Operating Temperature Range | -20 | 25 | 70 | ℃ | |
| Current Consumption | |||||
| TX current | 20 | 25 | mA | @433MHz | |
| Sleep current | 1 | uA | |||
| RF Parameters | |||||
| Frequency Range | 433.82 | 433.92 | 434.02 | MHz | @433MHz |
| 314.9 | 315 | 315.1 | MHz | @315MHz | |
| Output Power | 15 | dBm | @3.3V | ||
| Modulation Rate | 0.1 | 10 | Kbps | ||
| Modulation | ASK |
| Frequency | 315MHz,433MHz |
Features of ASK transmitter module STX885
- Operating frequency: 433MHz or 315 MHz (for optional)
- Integrated ev1527 digital encoding circuit, 20-bit internal code, with 2 million encoding capabilities
- sleep and fast wake-up function, zero standby power consumption
- Meet various international testing standards
- OOK modulation mode, speed up to 10kb/s
- Ultra-high power long distance, reliable and stable frequency, super strong against power interference
Applications of ASK transmitter module STX885
- Remote control door
- Wireless security alarm
- Wireless industrial control
- Wireless data transmission
| Pin Number | Pin Definitions | Description |
| 1 | VCC | Power supply is positive, range 2.0V-3.6V |
| 2, 9 | GND | Power ground |
| 3 | K2 | Key input, built-in pull-down resistor, high level TX |
| 4 | K0 | Key input, built-in pull-down resistor, high level TX |
| 5 | K1 | Key input, built-in pull-down resistor, high level TX |
| 6 | K3 | Key input, built-in pull-down resistor, high level TX |
| 7 | K02 | Key input, built-in pull-down resistor, high level TX |
| 8 | K03 | Key input, built-in pull-down resistor, high level TX |
| 10 | ANT | Connect 50 ohm antenna |
