XTH9-MI-128 Digi International/Maxstream, XTH9-MI-128 Datasheet - Page 7

• Manufacturer Part Number: XTH9-MI-128
• Description: MODULE RF 900MHZ 1W 115K W/MMCX
• Manufacturer: Digi International/Maxstream

Specifications of XTH9-MI-128

• Frequency: 900MHz
• Data Rate - Maximum: 230kbps
• Modulation Or Protocol: FHSS, FSK
• Power - Output: 30dBm
• Sensitivity: -110dBm
• Voltage - Supply: 3.3V, 5V
• Current - Receiving: 80mA
• Current - Transmitting: 260mA
• Data Interface: Connector, 2 x 10 Header
• Antenna Connector: MMCX
• Operating Temperature: -40°C ~ 85°C
• Package / Case: Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Applications: -
• Memory Size: -

XTend™ RF Module ‐ Product Manual v2.x6x
Table 1‐04. AC Characteristics (Symbols correspond with Figure 1‐02 and Figure 1‐03, ATSY Parameter = 0)
Electrical Characteristic
Symbol
T
T
T
T
CHDH
T
CLDL
TX
TL
RL
Timing Specifications
Time that TX_PWR pin (pin 4) is driven
Time starting when CTS goes low until
transmitted until it is received.
Time after last bit of data until
the first bit appears on DOUT
Latency from the time data is
Time that RX LED (pin 3)
Figure 1‐02. System Block Diagram
Basic RF Link between Hosts
The data flow sequence is initiated when the first byte of data is received in the DI Buffer of the
transmitting module (XTend RF Module A). As long as XTend RF Module A is not already receiving
RF data, data in the DI Buffer is packetized then transmitted over-the-air to XTend RF Module B.
Figure 1‐03. Timing Specifications (‘A’ and ‘B’ refer to Figure 1‐02)
© 2010 Digi Internatonal, Inc.
CTS goes high
Description
is driven high
low
Sleep Mode
(No sleep)
SM = 0
SM = 8
SM = 7
SM = 6
SM = 5
SM = 4
--
--
--
--
115200 Baud Rate
2.45 msec
2.26 msec
9.4 msec
44 µsec
7 µsec
16 sec
8 sec
4 sec
2 sec
1 sec
9600 Baud Rate
29.6 msec
27.2 msec
94 msec
75 µsec
7 µsec
16 sec
8 sec
4 sec
2 sec
1 sec
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