Silicon Laboratories Si4430, Manual

Page: 10 / 152

S i 4 4 3 0
10 Preliminary Rev. 0.4
Table 4. Transmitter AC Electrical Characteristics
1
Parameter Symbol Conditions Min Typ Max Units
TX Frequency
Range
1
F
SYNTH
900 — 960 MHz
FSK Modulation Data Rate
2
DR
FSK
1 — 128 kbps
OOK Modulation Data
Rate
2
DR
OOK
1.2 — 40 kbps
Modulation Deviation
1
Δ f Production tests maximum
limit of 320 kHz
±0.625 ±320 kHz
Modulation Deviation
Resolution Δ f
RES
— 0.625 — kHz
Output Power Range
1
P
TX
Power control by txpow[2:0] Register
Production test at txpow[2:0] = 111
Tested at 915 MHz
–8 — +13 dBm
TX RF Output Steps
2

P
RF_OUT
controlled by txpow[2:0] Register — 3 — dB
TX RF Output Level
Variation vs. Voltage
2

P
RF_V
Measured from VDD=3.6 V to
VDD=1.8 V
— 2 — dB
TX RF Output Level
2
Variation vs. Temperature

P
RF_TEMP
–40 to +85

C — 2 — dB
TX RF Output Level
Variation vs. Frequency
2

P
RF_FREQ
Measured across any one
frequency band
— 1 — dB
Transmit Modulation
Filtering
2
B*T Gaussian Filtering Bandwith Time
Product
— 0.5 —
Spurious Emissions
2
P
OB-TX1
P
OUT
= 11 dBm,
Frequencies <1 GHz
— — –54 dBm
P
OB-TX2
1–12.75 GHz, excluding harmonics — — –54 dBm
Harmonics
2
P
2HARM
Using Reference Design TX Matching
Network and Filter with Max Output Power
(+13 dBm). Harmonics reduce linearly with out-
put power
— — –42 dBm
P
3HARM
— — –42 dBm
Notes:
1.
All specification guaranteed by production test unless otherwise noted.
2.
Guaranteed by qualification.