ARF7429A ADEUNIS, ARF7429A Datasheet - Page 23

• Manufacturer Part Number: ARF7429A
• Description: MODULE, ARF54, EURO
• Manufacturer: ADEUNIS
• Type: Modem Moduler

Specifications of ARF7429A

• Modulation Type: FM
• Data Rate Max: 57.6Kbps
• Frequency Range: 869.4MHz To 869.65MHz
• Sensitivity: -110dBm
• Supply Voltage Range: 3V To 3.6V
• Supply Current: 700mA
• Rohs Compliant: Yes

characters in the requested speed (13 ms for 2400 bauds, 7 ms for 4800, 3
ms otherwise).
N
streaming mode without flow control. Be careful
to the radio rate must produce character losts if the flow control is not used.
If the radio rate is equal to the serial rate, the radio frame is longer than the
serial frame, due to radio protocol overhead; but the radio overhead will be
generated only when the radio transmission begins
absorbed by internal buffer size.
For example, if the current radio rate is 10 kbit/s, a serial rate of 9 600
should be used without flow control, while using a serial rate of 19 200 (with
For avoiding character lost, you should :
N
(S200 register)
rejection”
N
The preamble duration is linked to the current radio rate.
The preamble values are :
B
transmission delay but generate possible frame error rate (up to 1 or
2/1000)!!!
Ref. 08-07-V6-lmn
10 kbit/s for the radio rate) will produce data overrun.
Keep in mind reducing preamble duration below default value will reduce
E
OTE
OTE
OTE
C
(high radio rate)
(low radio rate)
AREFUL
2
3
4
WB channel
NB channel
1.
2.
3.
see chapter “Radio
use the flow control (addressed mode with hardware
handshake)
or use a serial rate lower or equal to the radio rate
or limit the size of serial data to the maximum size of the
internal buffer (S218).
Default preamble
value
20 ms
5 ms
channels”
and
using a serial rate greater
chapter “Channel
Minimum preamble
this overhead will be
A
value
10 ms
RF54
4 ms
User Guide
p. 21
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