SX1231IMLTRT Semtech, SX1231IMLTRT Datasheet - Page 47

• Manufacturer Part Number: SX1231IMLTRT
• Description: IC 433/868/915MHZ TXRX 24-QFN
• Manufacturer: Semtech

Specifications of SX1231IMLTRT

• Frequency: 433MHz, 868MHz, 915MHz
• Data Rate - Maximum: 300kbps
• Modulation Or Protocol: FSK, GFSK, GMSK, MSK, OOK
• Applications: AMR, Home Automation, Security
• Power - Output: 13dBm
• Sensitivity: -118dBm
• Voltage - Supply: 1.8 V ~ 3.6 V
• Current - Receiving: 16mA
• Current - Transmitting: 95mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 24-QFN
• Transmitting Current: 95mA
• Data Rate: 300Kbps
• Rf Ic Case Style: QFN
• No. Of Pins: 24
• Supply Voltage Range: 1.8V To 3.6V
• Operating Temperature Range: -40°C To +85°C
• Receiving Current: 16mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Lead Free Status / Rohs Status: Compliant
• Other names: SX1231IMLTR

5.4. Continuous Mode
5.4.1. General Description
As illustrated in Figure 27, in Continuous mode the NRZ data to (from) the (de)modulator is directly accessed by the uC on
the bidirectional DIO2/DATA pin. The FIFO and packet handler are thus inactive.
5.4.2. Tx Processing
In Tx mode, a synchronous data clock for an external uC is provided on DIO1/DCLK pin. Clock timing with respect to the
data is illustrated in Figure 28. DATA is internally sampled on the rising edge of DCLK so the uC can change logic state
anytime outside the grayed out setup/hold zone.
Note
Rev 3 - April 2010
ADVANCED COMMUNICATIONS & SENSING
Data
DCLK
DATA
(NRZ)
the use of DCLK is required when the modulation shaping is enabled (see section 3.4.5).
Tx/Rx
Rx
SYNC
RECOG.
Figure 27. Continuous Mode Conceptual View
Figure 28. Tx Processing in Continuous Mode
T_DATA
T_DATA
CONTROL
Page 47
SPI
DATASHEET
MISO
www.semtech.com
SCK
MOSI
NSS
SX1231
DIO0
DIO2/DATA
DIO3
DIO1/DCLK
DIO4
DIO5