Si4430/31/32-B1
Table 4. Transmitter AC Electrical Characteristics1
Parameter
TX Frequency
Symbol
Conditions
Min
Typ
Max Units
F
240
—
930
MHz
TX
Range—Si4431/32
TX Frequency
F
900
—
960
MHz
TX
Range—Si4430
2
FSK Data Rate
DR
0.123
0.123
±0.625
±0.625
—
—
—
256
40
kbps
kbps
kHz
kHz
kHz
FSK
2
OOK Data Rate
DR
OOK
Modulation Deviation
Δf1
Δf2
Δf
860–960 MHz
240–860 MHz
±320
±160
—
Modulation Deviation
0.625
—
RES
2
Resolution
Output Power
P
P
+1
–8
+20
+13
dBm
dBm
TX
TX
3
Range—Si4432
Output Power
—
3
Range—Si4430/31
2
TX RF Output Steps
P
P
controlled by txpow[2:0]
—
—
3
2
—
—
dB
dB
RF_OUT
2
TX RF Output Level
–40 to +85 C
RF_TEMP
Variation vs. Temperature
TX RF Output Level
Variation vs. Frequency
P
Measured across any one
frequency band
—
—
—
1
—
—
dB
RF_FREQ
2
Transmit Modulation
B*T
Gaussian Filtering Bandwith Time
Product
0.5
—
2
Filtering
2
Spurious Emissions
P
P
P
= +13 dBm,
OUT
–54
dBm
OB-TX1
Frequencies <1 GHz
1–12.75 GHz, excluding harmonics
—
—
—
—
—
—
–54
–42
–42
dBm
dBm
dBm
OB-TX2
2
Harmonics
P
P
Using reference design TX matching
network and filter with max output
power. Harmonics reduce linearly with
output power.
2HARM
3HARM
Notes:
1. All specification guaranteed by production test unless otherwise noted. Production test conditions and max limits are
listed in the "Production Test Conditions" section on page 14.
2. Guaranteed by qualification. Qualification test conditions are listed in the "Production Test Conditions" section on
page 14.
3. Output power is dependent on matching components and board layout.
10
Rev 1.0
IBM [ IBM ]
