4320-DKDB2 Silicon Laboratories Inc, 4320-DKDB2 Datasheet - Page 15

• Manufacturer Part Number: 4320-DKDB2
• Description: KIT DEV TEST EZRADIO SI4320 RX
• Manufacturer: Silicon Laboratories Inc

Specifications of 4320-DKDB2

• Accessory Type: Test Card, Receiver, 434MHz
• Wireless Frequency: 434 MHz
• Interface Type: SPI
• Modulation: FSK, OOK
• For Use With/related Products: EZRadio®
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

7. AFC Command
Bit 0 (en) enables the calculation of the offset frequency by the AFC circuit (it allows the addition of the content of the output register to the
frequency control word of the PLL).
Bit 1 (oe) when set, enables the output (frequency offset) register
Bit 2 (fi) when set, switches the circuit to high accuracy (fine) mode. In this case the processing time is about four times longer, but the
measurement uncertainty is less than half.
Bit 3 (st) strobe edge, when st goes to high, the actual latest calculated frequency error is stored into the output registers of the AFC block.
Bit 4-5 (rl0, rl1) range limit: Limits the value of the frequency offset register to the following values:
Bit 6-7 (a0, a1) Automatic operation mode selector:
Bit
15
1
14
1
13
0
12
0
a1
0
0
1
1
11
0
a0
0
1
0
1
10
1
Auto mode off (Strobe is controlled by microcontroller)
Runs only once after each power-up
Drop the f
Keep the f
9
1
rl1
offset
0
0
1
1
offset
8
0
value when the VDI signal is low
value independently from the state of the VDI signal
rl0
0
1
0
1
a1
7
Automatic operation mode
a0
6
Max dev [f
No restriction
+15/-16
rl1
5
+7/-8
+3/-4
rl0
4
res
]
st
3
2
fi
f
315, 433MHz bands: 2.5kHz
868MHz band: 5kHz
915MHz band: 7.5kHz
res
oe
:
1
en
0
C6F7h
POR
Si4320
15