SM1211E915 Semtech, SM1211E915 Datasheet - Page 68

• Manufacturer Part Number: SM1211E915
• Description: Dev Kit Accessory
• Manufacturer: Semtech

Specifications of SM1211E915

• Modulation Type: FSK, OOK
• Data Rate Max: 200Kbps
• Frequency Range: 902MHz To 928MHz
• Supply Voltage Range: 2.1V To 3.6V
• Module Interface: SPI
• Supply Current: 25mA
• Accessory Type: RF Module
• Sensitivity: -105dBm
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Package Type: TQFN EP
• Operating Supply Voltage (min): 2.1V
• Operating Supply Voltage (typ): 2.5/3.3V
• Operating Supply Voltage (max): 3.6V
• Sensitivity (dbm): -105dBm
• Rohs Compliant: NA
• Lead Free Status / RoHS Status: na
• Lead Free Status / RoHS Status: na

Note: As stated in the preceding section, TS_FS time can be improved by using the external lock detector pin as
external interrupt trigger.
Rev 7 – Sept 2
ADVANCED COMMUNICATIONS & SENSING
7.3.2. Optimized Transmit Cycle
nd
16mA typ. @1dBm
, 2008
1.3mA typ.
100nA typ.
65uA typ.
SX1211
IDDFS
IDDST
IDDSL
IDDT
IDD
TS_OSC
Set SX1211 in Standby mode
Wait for XO settling
Wait
TS_FS
Figure 50: Optimized Tx Cycle
Wait
Set SX1211 in FS mode
Wait for PLL settling
TS_TR
Wait
Page 68 of 92
Set SX1211 in Tx mode
Packet mode starts its operation
time
Tx
Data transmission can start in
Continuous and Buffered
modes
SX1211 can be put in
Any other mode
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SX1211
Time