CTR124-000-DIL

CONTROL124 RADIOMETRIX | Alldatasheet

Document overview

• Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
• PDF pages: 7

Technical content

Features

• Operating voltage (temperature): 4.0V-5.5V for standard version (-40 °C to +125°C) 2.0V-5.5V for low voltage version (-40 °C to +85°C)
• Draws <2mA without external load
• 4 bit address and 12 bit data
• 16 different remotes with 12 controls each
• Single packetised transmission for fast activation
• Maximum usage of the range capability of an RF module
• Adequate preamble to settle data slicer in the receiver.
• Extra wake up preamble to allow for transmitter power up time requirements
• Differential Manchester encoding of address, data and checksum
• Synchronisation codes and checksum to reduce false triggering on noise
• Suitable to be used with Narrow Band FM radio modules
• Ceramic resonator or crystal oscillator up to 20MHz
• Data rate up to 5.6kbps
• Minimum external component requirement
• 4 wire, push button and latched push button modes
• Custom address, data bit variations available subject to minimum order quantity

Applications

• Security and Alarm systems
• Emergency assistance call system
• Status reporting and monitoring systems
• RF Remote control systems
• Industrial controls
• HVAC controls
• Simple On/Off switching
• Long range telecontrol with Narrow Band FM radios Radiometrix Hartcran House, 231 Kenton Lane, Harrow, HA3 8RP, England Issue: 2, 13 February 2007 Control12 4 Control124 is a 4 bit address, 12 bit data encoder and decoder combined in a single IC. This device can operate in either Encode o r Decode mode. It uses 1kbps differentia l Manchester bit balancing with preamble and checksum. CTR124 is specifically designed to be used in RF remote control applications. I t is available in 28pin SO and DIL packages. Tel: +44 (0) 20 8909 9595, Fax: +44 (0) 20 8909 2233 Figure 1: Control124 in 28 pin DIL package

Radiometrix Ltd Control124 page 2 Encoder Mode Control124 can be put into Encoder Mode by connecting Mode (pin 2) to supply. MODE TXE RST Vss TXD SEND OSC1 OSC2 Vdd DB3 DB2 DB1 DB0 Contro124 100nF 3.58MHz supply Vss 10k 10k 10k 10k 10k 10k 10k 10k DA0 DA1 DA2 DA3 DA7 DA6 DA5 DA4 NC NC RF Vcc GND TXDTransmitter 10k 10k 4k7 Pin Name Input/Output Description

1 RST Input Active Low Reset (Connect to user system reset or tie to Vdd)

2 SEND Input Active Low Send Packet (Encoder Enable) 1

3 TXD Output Encoded Address and Data to TXD input of RF Transmitter

4 NC - -

5 MODE Input RX=0V, TX=Vdd (no pull-up, only read at reset/power up)

6 TXE Output Active Low RF Transmitter Enable (Open drain, require 10k pull-up) 2,3

7 NC - -

8 VSS Supply Supply Ground

9 OSC2 Output 3.58MHz resonator 4 10 OSC1 Input 3.58MHz resonator 4 11 - 18 DA0 - DA7 Input 8 bits of Data A; Schmitt trigger input 5, 6

19 VSS Supply Supply Ground

20 VDD Supply 4.0V-5.5V supply (decouple with 100nF close to IC). 2.0V-5.5V (low voltage version) 21 - 24 A0 - A3 Input Least significant 4 bits of Address (Internal pull-ups to Vdd) 6 25 - 28 DB0 - DB3 Input Least significant 4 bits of Data B (Internal pull-ups to Vdd) 6 Notes: 1. If a low going pulse of between 10 µs and 50ms is applied to SEND pin then a single packet will be transmitted 2. After asserting TXE low (active), the encoder allows 55ms for NBFM TX to power up and settle 3. TXE is an open drain output (no pull-up). Connect it to Vdd via a 10k Ω pull-up resistor 4. OSC1,2 require a 3.58MHz ceramic resonator with internal capacitors like Murata CSTLA3M58G55-B0. If a 2 pin resonator or crystal is used, then two 15pF-22pF caps are needed: one from OSC1 to 0V another from OSC2 to 0V. 100Ω series resistor between OSC2 and crystal may be required when driving low frequency crystal with High Speed (H) CTR124H version. 5. Not suitable for non-standard logic levels, require external pullup resistors. 6. Absolute maximum source/sink current from each DA0-DA7, DB0-DB3 and A0-A3 pins is 25mA. 7. MODE pin is only read at reset/power up. Connect to either Vdd (Encoder) or 0V (Decoder). 8. Without external loads the CTR124 draws <2mA from 5V supply 9. Standard version can be used down to 4V for <20MHz oscillator. Low voltage version can be used down to 2V for <4MHz oscillator Figure 2: Control124 in Encoder Mode

Radiometrix Ltd Control124 page 3 Decoder Mode Control124 can be put into Decoder Mode by connecting Mode (pin 2) to Ground. MODE RST Vss RXD LATCH OSC1 OSC2 Vdd DB3 DB2 DB1 DB0 Contro124 3.58MHz supply Vss DA0 DA1 DA2 DA3 DA7 DA6 DA5 DA4 STB NC 10k 470R 470R 470R 470R 470R 470R 100nF 470R 470R 470R 470R 470R 470R 470R NC RF Vcc GND RXDReceiver Figure 3: Control124 in Decoder Mode Pin Name Input/Outp ut

Description

2 LATCH Input 0V = latch DA3:D0 until next packet

Vdd = clear DA3:DA0 after 150ms (no pull-up)

3 RXD Input Encoded Address and Data from RXD Output of RF Receiver

4 STB Output Positive going pulse on reception of valid data packet. 10µs duration

6 NC - -

9 OSC2 Output 3.58MHz resonator 1 10 OSC1 Input 3.58MHz resonator 1 11 - 18 DA0 - DA7 Output 8 bits of Data A 2 20 VDD Supply 4.5-5.5V supply (decouple with 0.1µF close to IC) 2.0V-5.5V (low voltage version) 21 - 24 A0 - A3 Input Least significant 4 bits of Address (Internal pull-ups to Vdd) 2 25 - 28 DB0 - DB3 Output Least significant 4 bits of Data B 2 Notes: 1. OSC1, 2 require a 3.58MHz ceramic resonator with internal capacitors like Murata CSTLA3M58G55-B0. If a 2 pin resonator or crystal is used, then two 15pF-22pF caps are needed: one from OSC1 to 0V another from OSC2 to 0V. 100Ω series resistor between OSC2 and crystal may be required when driving low frequency crystal with High Speed (H) CTR124H version. 2. Absolute maximum source/sink current from each DA0-DA7, DB0-DB3, A0-A3 pins is 25mA 3. MODE pin is only read at reset/power up. Connect to either Vdd (Encoder) or 0V (Decoder). 4. Without external loads the CTR124 draws <2mA from 5V supply. 5. Standard version can be used down to 4V for <20MHz oscillator. Low voltage version can be used down to 2V for <4MHz oscillator. 6. High Speed, CTR124H, version should not be used with Narrow Band FM radio modules.

Radiometrix Ltd Control124 page 6 Application Modes Mode Setup Description 4 wires Latch = 0V (connect) SEND = 0V (connect) Continuous transmission like wire connection Pushbutton Latch = Vdd (connect) SEND =0V (push button) Decoder outputs active only when transmitter is keyed Latched Pushbutton Latch = 0V (connect) SEND = 0V (push button) Decoder outputs hold state of last transmission

Ordering Information

CTR124-000-SS Control124 ( ≤4MHz)- No Frequency - Shrink Small Outline CTR124-000-SO Control 124 ( ≤4MHz)- No Frequency - Small Outline CTR124-000-DIL Control 124 ( ≤4MHz)- No Frequency - Plastic Dual In Package CTR124L-000-SS Control124 Low Voltage ( ≤4MHz) - No Frequency - SSOP CTR124L-000-SO Control124 Low Voltage ( ≤4MHz) - No Frequency - SO CTR124L-000-DIL Control124 Low Voltage ( ≤4MHz) - No Frequency - PDIP CTR124H-000-SS Control124 High Speed (4MHz-20MHz) - No Frequency - SSOP CTR124H-000-SO Control124 High Speed (4MHz-20MHz) - No Frequency - SO CTR124H-000-DIL Control124 High Speed (4MHz-20MHz) - No Frequency - PDIP

231 Kenton Lane

Harrow, Middlesex HA3 8RP ENGLAND Tel: +44 (0) 20 8909 9595 Fax: +44 (0) 20 8909 2233 sales@radiometrix.com www.radiometrix.com Copyright notice This product data sheet is the original work and copyrighted property of Radiometrix Ltd. Reproduction in whole or in part must give clear acknowledgement to the copyright owner. Limitation of liability The information furnished by Radiometrix Ltd is believed to be accurate and reliable. Radiometrix Ltd reserves the right to make changes or improvements in the design, specification or manufacture of its subassembly products without notice. Radiometrix Ltd does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or other rights of third parties which may result from the use of its products. This data sheet neither states nor implies warranty of any kind, including fitness for any particular application. These radio devices may be subject to radio interference and may not function as intended if interference is present. We do NOT recommend their use for life critical applications. The Intrastat commodity code for all our modules is: 8542 6000 R&TTE Directive After 7 April 2001 the manufacturer can only place finished product on the market under the provisions of the R&TTE Directive. Equipment within the scope of the R&TTE Directive may demonstrate compliance to the essential requirements specified in Article 3 of the Directive, as appropriate to the particular equipment. Further details are available on The Office of Communications (Ofcom) web site: http://www.ofcom.org.uk/radiocomms/ifi/ Information Requests Ofcom Riverside House 2a Southwark Bridge Road London SE1 9HA Tel: +44 (0)20 7981 3000 Fax: +44 (0)20 7981 3333 information.requests@ofcom.org.uk European Radiocommunications Office (ERO) Peblingehus Nansensgade 19 DK 1366 Copenhagen Tel. +45 33896300 Fax +45 33896330 ero@ero.dk www.ero.dk