SI4320-J1-FT Silicon Laboratories Inc, SI4320-J1-FT Datasheet - Page 14

• Manufacturer Part Number: SI4320-J1-FT
• Description: IC RCVR FSK 915MHZ 5.4V 16-TSSOP
• Manufacturer: Silicon Laboratories Inc

Specifications of SI4320-J1-FT

• Package / Case: 16-TSSOP
• Frequency: 315MHz, 433MHz, 868MHz, and 915MHz
• Sensitivity: -109dBm
• Data Rate - Maximum: 256 kbps
• Modulation Or Protocol: FSK, OOK
• Current - Receiving: 14mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 2.2 V ~ 5.4 V
• Operating Temperature: -40°C ~ 85°C
• Operating Frequency: 315 MHz to 915 MHz
• Operating Supply Voltage: 2.2 V to 5.4 V
• Mounting Style: SMD/SMT
• Supply Current: 3 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Applications: -
• Memory Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1627-5

4. Wake-Up Timer Command
The wake-up time period can be calculated by M <m7 : m0> and R <r4 : r0>:
Software reset: Sending FF00h command to the chip triggers software reset. For more details see the Reset modes section.
5. Low Duty-Cycle Command
With this command Low Duty-Cycle operation can be set in order to decrease the average power consumption.
The time cycle is determined by the Wake-Up Timer Command.
The Duty-Cycle is calculated by D <d6 : d0> and M. (M is parameter in a Wake-Up Timer Command.)
6. Low Battery Detector and Microcontroller Clock Divider Command
The 5-bit value T of t4-t0 determines the threshold voltage of the threshold voltage V
Clock divider configuration:
bit
bit
bit
15
15
15
1
1
1
T
D.C.= (D * 2 +1) / M *100%
V
wake-up
lb
= 2.25 V + T * 0.1 V
14
14
14
1
1
1
= M * 2
13
13
13
1
0
0
R
ms
12
12
12
r4
0
0
11
11
11
r3
1
0
10
10
10
r2
1
0
r1
9
9
0
9
1
d2
0
0
0
0
1
1
1
1
r0
8
8
0
8
0
d1
0
0
1
1
0
0
1
1
m7
d6
d2
7
7
7
d0
0
1
0
1
0
1
0
1
m6
d5
d1
6
6
6
Frequency [MHz]
m5
d4
d0
Clock Output
5
5
5
10
1
1.25
1.66
2
2.5
3.33
5
m4
d3
t4
4
4
4
lb
m3
d2
t3
of the detector:
3
3
3
m2
d1
t2
2
2
2
m1
d0
t1
1
1
1
m0
en
t0
0
0
0
CC0Eh
E196h
C200h
POR
POR
POR
Si4320
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