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FPX3 데이터시트(Datasheet) 3 Page - Radiometrix Ltd

부품명 FPX3
상세내용  High power Multichannel 869MHz band transceiver
PDF  7 Pages
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제조사  RADIOMETRIX [Radiometrix Ltd]
홈페이지  http://www.radiometrix.com
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Radiometrix Ltd
FPX3 Data Sheet (preliminary)
page 3
Pin Description
NOTES:
1.
No inversion occurs between TXD and RXD.
2.
P1 - P3 (parallel channel selects) and N_TXE are active LOW and have internal 47K pullups to 4v
3.
RXD is an open collector output, with a weak pullup to 4v (approx 50K)
4.
This radio has no 'internal modem' functions in this version.
5.
Programming port (P0) operates at 2400 baud. (Command set specific to this design). The unit is
capable of operating in 'basic' parallel channel select only mode, or in serial controlled 'expanded'
mode
6.
The high current (500mA maximum) transmitter supply (5v regulated) is fed to a separate pin, on the
RF out connector.
The V supply (pin 4 on the user connector) also requires a 5v regulated supply, and draws up to
50mA
Both pins must be supplied at all times (most users connect them to a common +5v supply)
7.
10% duty cycle: While the FPX3 is capable of transmitting continuously (the case temperature will
rise noticeably) this will be in contravention of the sub-band restrictions.
Units operating in the high power 869.4-869.65MHz sub-band are limited to 10% maximum transmit
duty cycle. It is the responsibility of the user to ensure that this restriction is complied with.
Alternatively, the user may wish to implement a listen-before-talk protocol (using the RSSI output).
See EN300-220 for further details
Pins
Normal mode
RF
1A
NO PIN
2A
RF in/out
To the antenna
3A
RF Gnd
RF ground
4A
GND
0V
5A
GND
0V
6A
Vcc (TX)
+5V regulated supply for TX
7
User
1
TXD
DC coupled input for 5v pp CMOS logic waveforms
2
TXE
Transmit enable.
Low = TX mode
3
GND
0V
4
Vcc
DC supply input (+5V regulated)
8
5
P3
Parallel channel select
6
P2
Parallel channel select
7
P1
Parallel channel select
8
PGM in
Serial programming/control input (inverted logic level RS232)
9
RSSI
DC level between 0.5V and 2.5V. 60dB dynamic range
10
RXD
Open collector output of data slicer. 47K pullup to 4V
11
AF out
500mV p-p audio. DC coupled, approx 0.8V bias
Figure 3: FPX3 footprint (Top) view




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