Silicon Laboratories Si4010-C2, Manual

Page: 30 / 157

Si4010-C2
30 Rev. 1.0
Table 10.4. Si4010 RF Transmitter Characteristics
(TA = 25° C, VDD = 3.3 V, RL = 480

,, SOIC package unless otherwise noted)
Parameter Symbol Test Condition Min Typ Max Unit
Frequency Range
1
F
RF
27 — 960 MHz
Frequency Noise (rms)
2
Allen deviation, measured
across 1 ms interval
— 0.3 — ppm
Phase Noise @ 915 MHz 10 kHz offset — –70 — dBc/Hz
100 kHz offset — –100 — dBc/Hz
1 MHz offset — –105 — dBc/Hz
Frequency Tuning Time — 5 — ms
Carrier Frequency
Accuracy 0 °C ≤ T
A
≤ 70° C –150 — +150 ppm
–40 °C ≤ T
A
≤ 85° C –250 — +250 ppm
Frequency Error
Contribution with
External Crystal
–10 — +10 ppm
Transmit Power
3
Maximum programmed TX
power, with optimum differen-
tial load, V
DD
> 2.2 V
— 10 — dBm
Minimum programmed TX
power, with optimum differen-
tial load,
V
DD
> 2.2 V
— –13 — dBm
Power variation vs temp and
supply, with optimum
differential load, V
DD
> 2.2 V
–1.0 — 0.5 dB
Power variation vs temp and
supply, with optimum
differential load, V
DD
> 1.8 V
–2.5 — 0.5 dB
Transmit power step size
from –13 to 10 dBm
— 0.25 — dB
PA Edge Ramp Rate
Programmable Range
OOK mode 0.34 — 10.7 us
Data Rate OOK, Manchester encoding 0.1 — 50 kBaud
FSK, NRZ encoding 0.1 — 100 kBaud
Notes:
1.
The frequency range is continuous over the specified range.
2.
The frequency step size is limited by the frequency noise.
3.
Optimum differential load is equal to 3.5 V/(11.5 mA/2 x 4/PI) = 480

Therefore the antenna load resistance
in parallel with the Si4010 differential output resistance should equal 480

4.
Total NVM copy time = 2 ms + (NVM copy Boot Time per kB) x (NVM data in kB).