The RCQ2-434 is a high performance wireless modem providing a reliable low cost serial data communications link that can be used for many data communications applications at an exceptionally competitive price. The modem operates in the ISM 433MHz band. The RF modem is very simple to use and provides a wireless RS232 link with a RF data rate of up to 100 kbps.
The RCQ2-434 is a high performance wireless modem providing a reliable low cost serial data communications link that can be used for many data communications applications at an exceptionally competitive price. The modem operates in the ISM 433MHz band. The RF modem is very simple to use and provides a wireless RS232 link with a RF data rate of up to 100 kbps. The transceivers have the functions of a complete radio modem and simply require CMOS/TTL data at the transmit input and the corresponding transceiver(s) output the same data. Preamble and CRC are automatically generated and added to the RF transmission. The RCQ2-434 can use any channel in 100 (200) KHz step. Possible applications include one-to-one and multi-node wireless links in applications including security, EPOS, wireless sensor network, industrial process monitoring and computer networking. Because of their small size and low power requirements, (the consumption in power down mode is < 2 ) this module is a ideal for use in portable, batterypowered applications such as hand-held terminals.
Based on RCS1KSMT-434 RadioControlli device.
| Technical Characteristics | MIN | TYP | MAX | UNIT |
| Supply Voltage | 2.2 | 3.0 | 3.60 | Volt |
| Supply Current (RX mode) | 20 | mA | ||
| Supply Current (TX mode / +20dBm) | 85 | mA | ||
| Supply Current (TX mode / +0dBm) | 10 | mA | ||
| Supply current sleep mode | <2 | µA | ||
| Power up to stable receiver data out | 30 | ms | ||
| Power up to full RF Power out | 30 | ms | ||
| Standby to Receive mode | 1 | ms | ||
| Standby to Transmit mode | 1 | ms | ||
| RX Frequency Range CEPT/ERC/REC 70-03 | 432 | 435 | MHz | |
| RF Output Power | 1 | +20 | dBm | |
| RF Sensitivity (1.2 Kb/sec Data Rate) |
-112 | dBm | ||
| Frequency Deviation |
±50 | KHz | ||
| GSFK Manchester encoded data rate | 100 | Kbps | ||
| Operating Temperature range | -10 | +55 | °C | |
| Mechanical Dimensions 15 x 23.52mm |
| Pads | Name | Description |
| 1 | NIRQ | In this application this pin must be connected to pin 21 with a pull-up resistor |
| 2 | SDN | In this application this pin must be connected to pin 26 with a pull-down resistor |
| 3 | LEDRX | Led RX(open collector input/output max 4mA) |
| 4 | LEDTX | Led TX(open collector input/output max 4mA) |
| 5 | CTS | UART Clear to send |
| 6 | CONF | Configuration modality |
| 7 | PD | Power down mode |
| 8 | RXD | UART TX |
| 9 | TXD | UART RX |
| 10 | NU | Not used |
| 11 | DR1 | DR1 Baud rate selection |
| 12 | DR2 | DR2 Baud rate selection |
| 13 | RTS | UART Request to send |
| 14 | GND | Ground |
| 15 | GND | Ground |
| 16 | NU | Not used |
| 17 | NU | Not used |
| 18 | NU | Not used |
| 19 | NU | Not used |
| 20 | NU | Not used |
| 21 | P22 | In this application connected to pin 1 |
| 22 | NU | Not used |
| 23 | RST | Device reset |
| 24 | VCC | Power Supply |
| 25 | VCC | Power Supply |
| 26 | P20 | In this application connected to pin 2 |
