SI4431-B1-FM Silicon Laboratories Inc, SI4431-B1-FM Datasheet - Page 16

• Manufacturer Part Number: SI4431-B1-FM
• Description: IC TXRX 240-930MHZ -8-13DB 20QFN
• Manufacturer: Silicon Laboratories Inc

Specifications of SI4431-B1-FM

• Package / Case: 20-VQFN
• Mfg Application Notes: Transitioning SI4430/31 to Rev B
• Frequency: 240MHz ~ 930MHz
• Data Rate - Maximum: 256kbps
• Modulation Or Protocol: FSK, GFSK, OOK
• Applications: General Purpose
• Power - Output: 13dBm
• Sensitivity: -121dBm
• Voltage - Supply: 1.8 V ~ 3.6 V
• Current - Receiving: 18.5mA
• Current - Transmitting: 30mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Wireless Frequency: 240 MHz to 930 MHz
• Output Power: 13 dBm
• Operating Supply Voltage: 1.8 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Maximum Supply Current: 30 mA
• Minimum Operating Temperature: - 40 C
• Modulation: FSK, GFSK, OOK
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Product Depth (mm): 4mm
• Product Length (mm): 4mm
• Operating Supply Voltage (min): 1.8V
• Operating Supply Voltage (typ): 3V
• Operating Supply Voltage (max): 3.6V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Si4430/31/32-B1
16
supply voltage
1
2
3
TR & ANT-DIV
C3
Supply Voltage
Switch
L4
Figure 1. Si4430/31 RX/TX Direct-Tie Application Example
Figure 2. Si4432 Antenna Diversity Application Example
C2
6
5
4
L3
100p
C6
L6
100 p
C6
C3
C5
L3
100n
C7
L2
L5
C4
C5
C4
100 n
C7
C2
L4
L2
1u
C8
C1
Programmable load capacitors for X1 are integrated.
L1-L6 and C1-C5 values depend on frequency band, antenna
impedance, output power and supply voltage range.
1 u
C8
L1
C1
VDD_RF
Programmable load capacitors for X1 are integrated.
L1–L4 and C1–C5 values depend on frequency band, antenna
impedance, output power, and supply voltage range.
L1
RXn
RFp
NC
Rev 1.1
TX
VDD_RF
NC
1
3
2
4
5
RXn
RFp
TX
Si4430/31
30MHz
1
3
X1
2
4
5
30 MHz
Si4432
X1
15
14
13
12
11
1u
C9
SCLK
SDI
SDO
VDD_D
NC
15
14
13
12
11
1 u
C9
SCLK
SDI
SDO
VDD_D
NC
GP1
GP2
GP3
GP4
GP5
GP1
GP2
microcontroller
GP3
GP4
GP5
Microcontroller
VDD
VSS
VDD
VSS