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BIM-433-40 데이터시트 PDF




Radiometrix에서 제조한 전자 부품 BIM-433-40은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 BIM-433-40 기능
기능 (BIM-418-40 / BIM-433-40) Low Power UHF Data Transceiver Module
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BIM-433-40 데이터시트, 핀배열, 회로
Radiometrix
www.DataSheet4U.com
Hartcran House, Gibbs Couch, Watford, WD19 5EZ, England
Issue 3, 13 July 2001
Tel: +44 (0) 20 8428 1220, Fax: +44 (0) 20 8428 1221
BiM-UHF
Low Power UHF Data Transceiver Module
UK Version - BiM-418-40
Euro Version - BiM-433-40
The BiM-418-40 and BiM-433-40 are
miniature UHF radio modules
capable of half duplex data
transmission at speeds upto 40 Kbit/s
over distances of 30 metres "in-
building" and 120 metres open ground
Features
Miniature PCB Mounting module
Licence Exempt operation in UK on 418MHz, MPT 1340 (BiM-418-40)
ETS 300-220 tested for European use on 433.92 MHz (BiM-433-40)
SAW controlled FM transmission at -6dBm ERP.
Double conversion Superhet receiver
-107dBm receive sensitivity
Single 4.5 to 5.5V supply < 15mA (tx or rx)
Half duplex data at upto 40 kbit/s
Reliable 30 metre in-building range
Direct interface to 5V CMOS logic
Fast 1ms power up enable for duty cycle power saving
On board data slicer, supply switches and antenna change over.
BiM-UHF transceiver
The module integrates a low power UHF FM transmitter and matching superhet receiver together with
the data recovery and TX/RX change over circuits to provide a low cost solution to implementing a Bi-
directional short range radio data link. The high data rates (upto 40kbit/s) and fast TX/RX changeover
(<1ms) make the BiM transceiver ideal for high integrity one to one links / multi-node packet switch
networks. Rapid RX power up ( <1ms ) allows effective duty cycle power saving of the receiver for
battery powered applications
(e.g. 15µA average @ 1ms ON : 1sec OFF).
Typical applications :-
Medium speed computer networks
Laptop > PC > printer links
High integrity wireless Fire / Security alarms
Building environment control / monitoring
Vehicle alarm systems
Remote meter reading
Authorisation / Access control
Radiometrix Ltd, BiM Data Sheet
page 1




BIM-433-40 pdf, 반도체, 판매, 대치품
pin 15
pin 16
TX select
RX select
www.DataSheet4U.com
All states are valid.
Pin 15 TX
1
1
0
0
Pin 16 RX
1
0
1
0
Active low transmit / receive selects with 10kinternal
pull-ups. They may be driven by open collector or CMOS logic
function
power down (<1µA)
receiver enabled
transmitter enabled
self test loop back
Note - loop test is at reduced TX power.
pin 17
Vcc
positive supply, supply voltages from 4.5V to 5.5V may be used. Reverse
polarity will destroy the module. Supply is internally decoupled.
Maximum ripple content 50mV pk to pk.
figure 3: test circuit BiM-UHF
Warning:
Don't be tempted to adjust the trimmer on the module, it controls
the receive frequency and can only be correctly set-up with an
accurate RF signal generator.
Radiometrix Ltd, BiM Data Sheet
page 4

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BIM-433-40 전자부품, 판매, 대치품
www.DataSheet4U.com
figure 4: signal to noise curve
figure 5: timing waveforms
Antenna requirements
Three types of integral antenna are recommended and approved for use with the BiM transceiver :
A) Helical:
B) Loop,
C) Whip
Wire coil, connected directly to pin 2, open circuit at other end. This antenna is very
efficient given it's small size (20mm x 4mm dia.). The helical is a high Q antenna, trim
the wire length or expand the coil for optimum results. The helical de-tunes badly with
proximity to other conductive objects.
A loop of PCB track tuned by a fixed or variable capacitor to ground at the 'hot' end and
fed from pin 2 at a point 20% from the ground end. Loops have high immunity to
proximity de-tuning.
This is a wire, rod ,PCB track or combination connected directly to pin 2 of the module.
Optimum total length is 17cm (1/4 wave @ 418MHz) Keep the open circuit (hot) end well
away from metal components to prevent serious de-tuning. Whips are ground plane
sensitive and will benefit from internal 1/4 wave earthed radial(s) if the product is small
and plastic cased.
Radiometrix Ltd, BiM Data Sheet
page 7

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관련 데이터시트

부품번호상세설명 및 기능제조사
BIM-433-40

(BIM-418-40 / BIM-433-40) Low Power UHF Data Transceiver Module

Radiometrix
Radiometrix

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