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RC1040/1080/1090

2005 Radiocrafts AS RC1040/RC1080/RC1090 Data Sheet (rev. 1.3) Page 1 of 17

Wide Band Multi-Channel RF Transceiver Module

Product Description

The RC1040, RC1080 and RC1090 RF Transceiver Modules are compact surface-mounted

modules for wide band FSK operation with embedded protocol. The modules are completely

shielded and pre-certified for operation under the European and US radio regulations for

license-free use. When used with quarter-wave antennas a line-of-sight range of 500 meter

can be achieved at 433 MHz.

Applications

• OEM equipment

• Radio modems

• Point-of-sales terminals

• Bar code scanners

• Telemetry stations

• Fleet management

Features

• Smallest in the world (12.7 x 25.4 x 3.5 mm)

• Very low current consumption, 3nA OFF mode

• Embedded RC232™ protocol

• Addressing

• 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

• Multi-channel operation

• Wide supply voltage range, 2.8 – 5.5 V

• Conforms with EU R&TTE directive (EN 300 220, EN 301 489, EN 60950)

• Conforms with FCC CFR 47 part 15

Quick Reference Data

Parameter RC1040 RC1080 RC1090 Unit

Frequency band 433.05-434.79 868 - 870 902 - 928 MHz

Number of channels 5 8 9

Data rate 19.2 kbit/s

Max output power 9 5 -1* dBm

Sensitivity -95 -95 -95 dBm

Supply voltage 2.8 – 5.5 Volt

Current consumption, RX 10.5 13 13 mA

Current consumption, TX 25 25 25 mA

Current consumption, SLEEP

85 uA

Current consumption, OFF 0.003 uA

* Programmable. Maximum allowed radiated power under FCC CFR 47, part 15 is -1 dBm ERP.

PRELIMINARY INFORMATION. Specifications and information herein are subject to change without notice.

Summary of content (17 pages)

PAGE 1
RC1040/1080/1090 Wide Band Multi-Channel RF Transceiver Module Product Description The RC1040, RC1080 and RC1090 RF Transceiver Modules are compact surface-mounted modules for wide band FSK operation with embedded protocol. The modules are completely shielded and pre-certified for operation under the European and US radio regulations for license-free use. When used with quarter-wave antennas a line-of-sight range of 500 meter can be achieved at 433 MHz.
PAGE 2
RC1040/1080/1090 Typical Application Circuit 2.8 - 5.5 V To host MCU or RS232/422/485 driver { GND CTS/RXTX/RXEN RTS/TXEN CONFIG TXD/SCL RXD/SDA GND GND VCC ON/OFF VDD GND RF GND NC Antenna Quick Product Introduction How do I transmit data? Send your data to the RXD pin on the module. Use the UART format with settings (19200, 8, 1, N, no flow control). Up to 128 bytes are buffered in the module.
PAGE 3
RC1040/1080/1090 Pin Assignment 30 29 28 27 26 25 24 23 GND 1 14 GND CTS/RXEN/RXTX 2 13 VCC RTS/TXEN 3 12 ON/OFF CONFIG 4 11 VDD TXD/SCL 5 10 GND RXD/SDA 6 9 RF GND 7 8 GND 15 16 17 18 19 20 21 22 Pin Description Pin no Pin name 1 GND 2 CTS/RXTX/RXEN 3 RTS/TXEN 4 CONFIG 5 6 7 8 9 10 11 12 TXD/SCL RXD/SDA GND GND RF GND VDD ON/OFF 13 VCC 14 15-18 19 20-21 22 GND RESERVED RSSI RESERVED RESET 23-30 RESERVED Description System ground UART Clear to Send, UA
PAGE 4
RC1040/1080/1090 Block Diagram GND GND Voltage Regulator CTS/RXEN/RXTX RTS/TXEN Communication controller ON/OFF VDD CONFIG TXD/SCL VCC RF Transceiver GND RXD/SDA RF GND GND Circuit Description The module contains a communication controller with embedded RC232™ protocol software, an RF transceiver and an internal voltage regulator. The communication controller handles the radio packet protocol, the UART interface and controls the RF transceiver.
PAGE 5
RC1040/1080/1090 RC232™ Embedded Protocol The module offers a buffered packet radio as well as an un-buffered transparent mode in the RC232™ embedded protocol. Using the buffered packet radio mode, all data to be sent is stored in the module before they are transmitted by the RF circuitry. Likewise, when data is received they are stored in the module before they are sent to the host. This allows the communication controller to add address information and to do error check of the data.
PAGE 6
RC1040/1080/1090 • • ON/OFF is turned low, and keep low until ON/OFF is high again (VCC – 10%). This will ensure proper power-on reset (POR). If a dedicated I/O pin for the RESET signal is not available, a 10 kOhm series resistor from ON/OFF to RESET can be used, and controlling ON/OFF with a 3 / 5V signal from the MCU. This is valid for the RC12x0-series only. For the RC10x0-modules direct control of the RESET-pin must be used Use an external POR and brown-out supervisory circuit.
PAGE 7
RC1040/1080/1090 Timing Information The figure and table below shows the timing information for the module when changing between different operating states. The IDLE state is the normal state where the module search for preamble on the air and wait for a character to be received on the UART. RXD is the state when receiving characters from the host filling up the internal buffer. TX state is when the data is transmitted on the air. RX state is when data is received from the air after a preamble detection.
PAGE 8
RC1040/1080/1090 tOFF-IDLE OFF tRESET-IDLE RESET tSLEEP-IDLE SLEEP tC-CONFIG CONFIG IDLE IDLE IDLE CONFIG MEMORY CONFIG ’M’ Symbol tRX-TXD Value 500 us tTXD Min 621 us tTXD-IDLE 5 ms tPACKET- Programmable TIMEOUT tRXD-CTS 25 us tRXD-TX 1.3 ms tTX-IDLE 5 ms tOFF-IDLE tRESET-IDLE tSLEEP-IDLE tC-CONFIG tMEMORY- 160 ms 160 ms 55 ms 43 ms 66 ms CONFIG tCONFIG-IDLE 5 ms tTX Min 5.
PAGE 9
RC1040/1080/1090 RF Frequency, Output Power Levels and Data Rates The following table shows the available RF channels and their corresponding frequencies, and nominal output power levels. Model RF channel RC1040 1: 433.302 MHz 2: 433.711 MHz 3: 433.916 MHz 4: 434.092 MHz 5: 434.319 MHz Output power 1: -14 dBm 2: -6 dBm 3: 0 dBm 4: 6 dBm 5: 9 dBm Data rate 1: 1.2 kbit/s 2: 2.4 kbit/s 3: 4.8 kbit/s 4: 9.6 kbit/s 5: 19.2 kbit/s RC1080 1: 868.130 MHz 2: 868.297 MHz 3: 868.366 MHz 4: 868.800 MHz 5: 868.
PAGE 10
RC1040/1080/1090 RSSI Output The module provides an analogue Received Signal Strength Indicator (RSSI) signal at pin 19. This pin can be connected to an ADC to measure the received signal strength. The signal strength can be used as an indication of fading margin, or as a carrier sense signal to avoid collisions. Voltage The RSSI voltage decreases with increased input signal strength. Typical RSSI voltage as a function of input signal strength is shown in the figure below. 1.3 1.2 1.1 1 0.9 0.8 0.7 0.
PAGE 11
RC1040/1080/1090 Antenna Connection The antenna should be connected to the RF pin. The RF pin is matched to 50 Ohm. If the antenna connector is placed away from the module at the motherboard, the track between the RF pin and the connector should be a 50 Ohm transmission line. On a two layer board made of FR4 the width of a microstrip transmission line should be 1.8 times the thickness of the board, assuming a dielectric constant of 4.8.
PAGE 12
RC1040/1080/1090 PCB Layout Recommendations The recommended layout pads for the module are shown in the figure below. All dimensions are in thousands of an inch (mil). The circle in upper left corner is an orientation mark only, and should not be a part of the copper pattern. The area underneath the module should be covered with solder resist in order to prevent short circuiting the test pads on the back side of the module. A solid ground plane is preferred.
PAGE 13
RC1040/1080/1090 1.0" / 25.4 mm 0.5" / 12.7 mm Mechanical Dimensions The module size is 12.7 x 25.4 x 3.5 mm. Carrier Tape and Reel Specification Carrier tape and reel is in accordance with EIA Specification 481. Tape width 44 mm 2005 Radiocrafts AS Component Hole pitch pitch 16 mm 4 mm Reel diameter 13” RC1040/RC1080/RC1090 Data Sheet (rev. 1.
PAGE 14
RC1040/1080/1090 Absolute Maximum Ratings Parameter Min Supply voltage, VCC -0.3 Voltage on any pin -0.3 Input RF level Storage temperature -50 Operating temperature -20 Max 5.5 5.5 10 150 55 Unit V V dBm °C °C 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.
PAGE 15
RC1040/1080/1090 Saturation 10 Input IP3 dBm -18 Spurious emission, RX RC1040/RC1080 RC1090 Supply voltage 2.8 Supply voltage rise time dBm -57 -49 dBm 5.5 V 150 us Current consumption, IDLE/RX RC1040 RC1080 RC1090 10.5 13 13 mA Current consumption, TX 25 mA Current consumption, SLEEP 85 150 µA Current consumption, OFF 0.003 1.5 µA 1.7 0 2.6 0.7 5.5 0.1 2.7 V 1.7 0.7 2.7 V 1.4 0.
PAGE 16
RC1040/1080/1090 Document Revision History Document Revision 1.0 1.1 1.2 1.
PAGE 17
RC1040/1080/1090 Product Status Definitions Data Sheet Identification Preliminary Product Status Engineering Samples and First Production Definition This data sheet contains preliminary data, and supplementary data will be published at a later date. Radiocrafts reserves the right to make changes at any time without notice in order to improve design and supply the best possible product.