SI4021-A1-FT Silicon Laboratories Inc, SI4021-A1-FT Datasheet - Page 29

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SI4021-A1-FT

Manufacturer Part Number
SI4021-A1-FT
Description
IC TX FSK 915MHZ 5.4V 16-TSSOP
Manufacturer
Silicon Laboratories Inc
Datasheet

Specifications of SI4021-A1-FT

Package / Case
16-TSSOP
Frequency
433MHz, 868MHz, 915MHz
Modulation Or Protocol
FSK, OOK
Data Rate - Maximum
512kbps
Power - Output
8dBm
Current - Transmitting
24mA
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
433 MHz to 915 MHz
Mounting Style
SMD/SMT
Operating Supply Voltage
2.2 V to 5.4 V
Supply Current
1.5 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
336-1622-5

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SI4021-A1-FTR
Manufacturer:
SILICON
Quantity:
5 000
Si4021
EXAMPLE APPLICATIONS: DATA PACKET TRANSMISSION
Data packet structure
An example data packet structure using the IA422x – IA4320 pair for data transmission. This packet structure is an example of how to use
the high efficiency FIFO mode at the receiver side:
D
D
D
. . .
D
AA AA AA 2D D4
0
1
2
N
Prea mble
Databytes (received in the
FIFO of the receive r)
Synchron pattern
The first 3 bytes compose a 24 bit length ‘01’ pattern to let enough time for the clock recovery of the receiver to lock. The next two bytes
compose a 16 bit synchron pattern which is essential for the receiver’s FIFO to find the byte synchron in the received bit stream. The
synchron patters is followed by the payload. The first byte transmitted after the synchron pattern (D
in the picture above) will be the first
0
received byte in the FIFO.
Important: The bytes of the data stream should follow each other continuously, otherwise the clock recovery circuit of the receiver side will
be unable to track.
Further details of packet structures can be found in the IA ISM-UGSB1 software development kit manual.
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