SI4313-B1-FM Silicon Laboratories Inc, SI4313-B1-FM Datasheet - Page 18

• Manufacturer Part Number: SI4313-B1-FM
• Description: IC RX FSK 315-915MHZ 20VQFN
• Manufacturer: Silicon Laboratories Inc
• Series: EZRadio®r
• Type: ISM Receiverr

Specifications of SI4313-B1-FM

• Package / Case: 20-VQFN
• Mfg Application Notes: Si4313 Register Desc AppNote
• Frequency: 315MHz, 434MHz, 868MHz, 915MHz
• Sensitivity: -118dBm
• Data Rate - Maximum: 128kbps
• Modulation Or Protocol: FSK, GFSK, OOK
• Applications: Data Logging, Health Monitors, Remote Control, Weather Station
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 1.8 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Operating Frequency: 315 MHz to 915 MHz
• Operating Supply Voltage: 1.8 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Supply Current: 100 nA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Memory Size: -
• Current - Receiving: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1980-5

Si4313-B1
The SPI interface contains a burst read/write mode, which allows for reading/writing sequential registers without
having to resend the SPI address. When the nSEL bit is held low while continuing to send SCLK pulses, the SPI
interface will automatically increment the ADDR and read from/write to the next address. An example burst write
transaction is shown in Figure 4, and a burst read is shown in Figure 5. As long as nSEL is held low, input data will
be latched into the Si4313 every eight SCLK cycles.
18
SDO
SCLK
nSEL
SDI
SDO
SCLK
nSEL
SCLK
nSEL
SDI
SDI
First Bit
First Bit
First Bit
RW
RW
=1
=0
RW
A6
=0
A6
A5
A5
A6
A4
A4
A5
A3
A3
A4
A2
A2
Figure 4. SPI timing—Burst Write Mode
Figure 5. SPI timing—Burst Read Mode
Figure 3. SPI Timing—READ Mode
A3
A1
A1
First Bit
A0
A0
A2
D7
=X
D7
D7
=X
A1
D6 D5 D4 D3
D6
=X
D6
=X
First Bit
A0
D5
=X
D5
=X
Rev. 1.0
D4
=X
D4
=X
D7
D7
=X
D3
=X
D3
=X
D6 D5 D4 D3
D6
=X
D2
=X
D2
=X
D2 D1 D0
Last Bit
D1
=X
D5
=X
D1
=X
D0
=X
D0
=X
D4
=X
D7
=X
D7 D6 D5 D4 D3
D3
=X
D6
=X
D2 D1 D0
D2
=X
D5
=X
D4
=X
D1
=X
D3
=X
Last Bit
D0
=X
Last Bit
D2
=X
D2 D1 D0
D1
=X
Last Bit
D0
=X