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RPC2A Datasheet

  • RPC2A

  • UHF Radio Packet Controller

  • 27頁

  • RADIOMETRIX

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Radiometrix
Hartcran House, 231 Kenton Lane, Harrow, HA3 8RP, England
20 April 2007
Tel: +44 (0) 20 8909 9595, Fax: +44 (0) 20 8909 2233
RPC2A
UHF Radio Packet Controller
Modules: RPC2A-433-64: IC+BiM2A-433-64-S
IC鈥檚:
RPC-000-DIL:
RPC-000-SO:
RPC-000-SS:
18 pin DIL IC
18 pin SO IC
20 pin SSOP IC
The RPC2A-433-64 is intelligent transceiver
modules, which enable a radio network/link to
be simply implemented between a number of
digital devices. The module combines a UHF
`
radio transceiver and a 64kbps packet
controller.
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Crystal controlled PLL FM circuitry for both Tx and Rx
Reliable 75 meter in-building range, 300m open ground
Built-in self-test / diagnostics / status LED鈥檚
Complies with ETSI EN 300 220-3
Complies with ETSI EN 301 489-3
Single 5V supply @ < 27mA
64kbps half duplex
Free format packets of 1 - 27 bytes
Packet framing and error checking are user transparent
Collision avoidance (listen before transmit)
Direct interface to 5V CMOS logic
Power save mode
The RPC2A-module
I
NTRODUCTION
The RPC2A is an enhanced replacement for original RPC-433-40 transceiver. It is a self-contained plug-
on radio port which requires only a simple antenna, 5V supply and a byte-wide I/O port on a host
microcontroller (or bi-directional PC port).
The module provides all the RF circuits and processor intensive low level packet formatting and packet
recovery functions required to inter-connect an number of microcontrollers in a radio network.
A data packet of 1 to 27 bytes downloaded by a Host microcontroller into the RPC2A's packet buffer is
transmitted by the RPC2A鈥檚 transceiver and will "appear" in the receive buffer of all the RPC2A's within
radio range.
A data packet received by the RPC2A鈥檚 transceiver is decoded, stored in a packet buffer and the Host
microcontroller signalled that a valid packet is waiting to be uploaded.
transmit / receive
download
download
HOST
upload
figure 1: RPC2A + Host
碌
-controller
RPC2A
upload
HOST
Radiometrix Ltd, RPC2A
page
1

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