SI4322-A1-FT Silicon Laboratories Inc, SI4322-A1-FT Datasheet - Page 17

• Manufacturer Part Number: SI4322-A1-FT
• Description: IC RCVR FSK 915MHZ 3.8V 16-TSSOP
• Manufacturer: Silicon Laboratories Inc
• Type: FSK Receiverr

Specifications of SI4322-A1-FT

• Package / Case: 16-TSSOP
• Frequency: 868MHz, 915MHz
• Sensitivity: -104dBm
• Data Rate - Maximum: 256 kbps
• Modulation Or Protocol: FSK
• Applications: Remote Control, RKE, Security Systems
• Current - Receiving: 14mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Features: RSSI Equipped
• Voltage - Supply: 2.2 V ~ 3.8 V
• Operating Frequency: 915 MHz
• Operating Supply Voltage: 2.5 V, 3.3 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Supply Current: 12 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Operating Temperature: -
• Memory Size: -
• Lead Free Status / Rohs Status: Supplier Unconfirmed
• Other names: 336-1628-5

Bit 7:4 <x3 : x0>: Crystal load capacitance. Set according to the crystal’s specified load capacitance.
Bit 3:1 <i2 : i0>: Baseband filter bandwidth
Bit 0 <dc>: When dc bit is set it disables the clock output.
Note: The internal 32 kHz oscillator is turned on by setting the elfc bit in the "5.10. Low Battery Detector and Microcontroller
Clock Divider Command" on page 21 or the enldc bit in the "5.9. Low Duty Cycle Command" on page 20 or by enabling
the low battery detector using eb bit or by turning on the wake-up timer (et bit) in this command.
Clock tail feature: When the clock output (pin 8) used to provide clock signal for the microcontroller (dc bit is set to 0), it
is possible to use the clock tail feature. This means that the crystal oscillator turn off is delayed, after issuing the com-
mand (clearing the ex bit) 512 more clock pulses are provided. This ensures that the microcontroller can switch itself to
low power consumption mode. It is possible to decrease the clock tail length to 128 pulses by clearing the ctls bit in
"5.15. Extended Features Command" on page 26.
x3
0
0
0
0
1
1
i2
0
0
0
0
1
1
1
1
x2
0
0
0
0
1
1
……
i1
0
0
1
1
0
0
1
1
x1
0
0
1
1
1
1
i0
0
1
0
1
0
1
0
1
Rev. 1.2
x0
0
1
0
1
0
1
Bandwidth [kHz]
Capacitance [pF]
Baseband
Reserved
Reserved
Reserved
Crystal Load
400
340
270
200
135
10.0
15.5
16.0
8.5
9.0
9.5
….
Si4322
17