SI4021-A1-FT Silicon Laboratories Inc, SI4021-A1-FT Datasheet - Page 20

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

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

Note:
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

Data Transmit Sequence Through the FSK Pin
Data Transmit Sequence Through the SDI Pin
Do not send CLK pulses with the TX data bits, otherwise they will be interpreted as commands.
This mode is not SPI compatible, therefore it is not recommended in microcontroller mode.
If the crystal oscillator and the PLL are running, the t
nSEL
SCK
SDI
FSK
Internal operations
ex, es, ea = 1
a0, a1 = 0
P o w e r M a n a g e m e n t C o m m a n d
C 0 h
synthesizer / PLL /
Xtal osc staus
instruction
PA status
d o n ' t c a r e
3 8 h
sx
+t
sp
delay is not needed.
t
sx *
t
sp *
synthesizer on, PLL locked, PA ready to transmit
xtal osc. stable
T X D A T A
NOTE:
* See page 6 for the timing values
Si4021
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