RC1210

Part: RC1210 (RC1210FR-073R3L) — Radiocrafts

Type: Narrow Band Multi-Channel RF Transceiver Module

Description: 418.725–419.450 MHz, 25 kHz narrow band FSK transceiver module with embedded RC232 protocol, 30 channels, up to 8 dBm output power, -112 dBm sensitivity and a 2.8–5.5 V supply range.

Operating Conditions:

• Supply voltage: 2.8–5.5 V
• Operating temperature: -20 to 55 °C
• Data rate: 4.8 kbit/s; channel bandwidth 25 kHz
• UART default settings: 19200, 8, 1, N

Absolute Maximum Ratings:

• Max supply voltage (VCC): 5.5 V
• Voltage on any pin: -0.3 to 5.5 V
• Input RF level: 10 dBm
• Storage temperature: -50 to 150 °C

Key Specs:

• Frequency band: 418.725–419.450 MHz, 30 channels
• Max output power: 8 dBm
• Sensitivity: -112 dBm
• Current consumption RX: 20.2 mA
• Current consumption TX: 26 mA
• Current consumption SLEEP: 0.9 mA
• Current consumption OFF: 0.003 μA (3 nA)
• Line-of-sight range: 1–2 km with quarter-wave antennas
• Internal regulated VDD: 2.7 V (logic swing 0–2.7 V on some pins)

Features:

• Smallest in the world (12.7 x 25.4 x 3.7 mm)
• 25 kHz narrow band multi-channel operation
• Embedded RC232 protocol with addressing and error check
• 128 byte data buffer
• Simple UART interface for RS232/422/485 wire replacement
• Synchronous un-buffered transparent mode (SCL/SDA)
• Shielded SMD module, no external components
• No configuration required for single-channel use
• 3/5 V tolerant I/O
• Conforms with Chinese license-free band regulations (pre-certified)

Applications:

• OEM equipment
• Radio modems
• Alarm and security systems
• Point-of-sales terminals
• Bar code scanners
• Telemetry stations
• Fleet management

Package:

• Shielded SMD module, 12.7 x 25.4 x 3.7 mm

• Smallest in the world (12.7 x 25.4 x 3.7 mm)
• 25 kHz narrow band multi-channel operation
• Very low current consumption, 3nA OFF mode
• Embedded RC232™ protocol
• Addressing and Error check
• 128 byte data buffer
• Simple UART interface for easy RS232/422/485 wire replacement
• Compact shielded module for SMD mounting
• No external components
• No configuration required for single-channel use
• Easy to use data interface, 3/5 V tolerant I/O
• Wide supply voltage range, 2.8 - 5.5 V
• Conforms with the Chinese regulations for license-free bands (Regulation for low power (short range) devices, Ministry of Information Industry May 1998)

• OEM equipment
• Radio modems
• Alarm and security systems
• Point-of-sales terminals
• Bar code scanners
• Telemetry stations
• Fleet management

Note 1: In UART mode the TXD and RXD are used for serial data, and CTS/RXTX and RTS for flow control (optional). If flow control is not used, and RXEN and TXEN are both asserted (active low) the module is set in SLEEP mode. RXEN and TXEN should be connected to VDD if not used if not used for SLEEP mode activation. A pull-up resistor is not necessary due to an internal series resistor.

Note 2: In synchronous mode the SCL (data clock) and SDA (Data input and output) are used for serial data. The RXEN and TXEN pins are then used to select the operation mode of the device. Signals are active low.

Note 3: The CONFIG pin is used to enter configuration mode (change of default settings). Active low.

Note 4: Do not use VDD for supply to external circuits. Should only be used for pull-ups, if required.

Note 5: RXEN, TXEN, CONFIG, TXD and RXD have internal 100 kΩ series resistors. Driving capability when used as outputs is therefore limited and should be connected to CMOS inputs only.

Note 6: Other digital interfaces may be specified upon request.

T=25 C, VCC = 3.0V if nothing else stated.

Caution ! ESD sensitive device. Precaution should be used when handling the device in order to prevent permanent damage.

Under no circumstances the absolute maximum ratings given above should be violated. Stress exceeding one or more of the limiting values may cause permanent damage to the device.