SI4022-A1-FT Silicon Laboratories Inc, SI4022-A1-FT Datasheet - Page 14

• Manufacturer Part Number: SI4022-A1-FT
• Description: IC TX FSK 915MHZ 3.8V 16-TSSOP
• Manufacturer: Silicon Laboratories Inc
• Type: ISM Band FSK Transmitterr

Specifications of SI4022-A1-FT

• Package / Case: 16-TSSOP
• Frequency: 868MHz, 915MHz
• Applications: ISM
• Modulation Or Protocol: FSK
• Data Rate - Maximum: 115.2kbps
• Power - Output: 6dBm
• Current - Transmitting: 24mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 2.2 V ~ 3.8 V
• Operating Temperature: -40°C ~ 85°C
• Operating Frequency: 434 MHz to 915 MHz
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 2.5 V, 3.3 V
• Supply Current: 24 mA
• Supply Voltage (max): 3.8 V
• Supply Voltage (min): 2.2 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Memory Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 336-1623-5

Extended Features Command:
Bit 7 <exlp>:
Bit 6 <ctls>:
Bit 4 <dcal>:
Bit 3-2 <bw1:bw0>: Select the bandwidth of the PLL.
Bit 1 <dsfi>:
Bit 0 <ewi>:
Status Register Read Command
With this command, it is possible to read the status register of the chip through the SDO pin.
Status Register Read Sequence
bit
bit
15
0
15
nSEL
SDO
SCK
SDI
1
WK-UP
FFEM
FFOV
FFIT
POR
LBD
14
0
14
0
FFIT
0
Enables low power mode for the crystal oscillator.
Clock tail selection bit. Setting this bit selects 512 cycle long clock tail instead of the default 128.
Disables the wake-up timer autocalibration.
Disables autosleep on FIFO interrupt if set to 1.
Enables
13
0
13
1
FFEM
1
12
The number of data bits in the FIFO has gone below the preprogrammed limit
FIFO is empty
FIFO overflow
Low battery detect, the power supply voltage is below the preprogrammed limit
Wake-up timer overflow
Power-on reset
0
12
the automatic wake-up on any interrupt event.
1
FFOV
2
11
0
11
0
LBD
3
10
0
10
WK-UP
0
4
bw1
9
0
0
0
1
1
POR
9
0
5
8
0
bw0
0
1
0
1
8
0
6
7
0
exlp
7
7
6
0
PLL bandwidth
ctls
6
8
120 kHz
15 kHz
30 kHz
60 kHz
5
0
9
5
0
4
0
dcal
10
4
3
0
bw1
11
status out
3
0
2
12
bw0
2
1
0
13
dsfi
1
0
0
14
ewi
0
15
POR
B0CAh
-
POR
Si4022
14