SI4330-B1-FMR Silicon Laboratories Inc, SI4330-B1-FMR Datasheet - Page 27
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SI4330-B1-FMR
Manufacturer Part Number
SI4330-B1-FMR
Description
IC RX ISM 240-960MHZ 20VQFN
Manufacturer
Silicon Laboratories Inc
Specifications of SI4330-B1-FMR
Frequency
240MHz ~ 960MHz
Sensitivity
-121dBm
Data Rate - Maximum
256 kbps
Modulation Or Protocol
FSK, GFSK, OOK
Applications
Remote Control, RKE, Security Systems
Current - Receiving
18.5mA
Data Interface
PCB, Surface Mount
Antenna Connector
PCB, Surface Mount
Features
RSSI Equipped
Voltage - Supply
1.8 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Package / Case
20-VQFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Memory Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
SI4330-B1-FMR
Manufacturer:
HIROSE
Quantity:
3 200
Part Number:
SI4330-B1-FMR
Manufacturer:
SILICON LABS/芯科
Quantity:
20 000
Si4330-B1
When AFC is enabled, the preamble length needs to be long enough to settle the AFC. In general, one byte of
preamble is sufficient to settle the AFC. Disabling the AFC allows the preamble to be shortened from 40 bits to 32
bits. Note that with the AFC disabled, the preamble length must still be long enough to settle the receiver and to
detect the preamble (see "6.6. Preamble Length" on page 37). The AFC corrects the detected frequency offset by
changing the frequency of the Fractional-N PLL. When the preamble is detected, the AFC will freeze for the
remainder of the packet. In multi-packet mode, the AFC is reset at the end of every packet and will re-acquire the
frequency offset for the next packet. The AFC loop includes a bandwidth limiting mechanism improving the
rejection of out of band signals. When the AFC loop is enabled, its pull-in-range is determined by the bandwidth
limiter value (AFCLimiter) which is located in register 2Ah.
AFC_pull_in_range = ±AFCLimiter[7:0] x (hbsel+1) x 625 Hz
The AFC Limiter register is an unsigned register and its value can be obtained from the EZRadioPRO Register
Calculator spreadsheet.
Frequency Correction
AFC disabled
Freq Offset Register
AFC enabled
AFC
Rev 1.0
27