
Si4455
1. Electrical Specifications
Table 1. Recommended Operating Conditions
Parameter
Ambient Temperature
Supply Voltage
I/O Drive Voltage
Symbol
T A
V DD
V GPIO
Test Condition
Min
–40
1.8
1.8
Typ
25
Max
85
3.6
3.6
Unit
°C
V
V
Table 2. DC Characteristics *
Parameter
Symbol
Test Condition
Min
Typ Max Unit
Supply Voltage Range
V DD
1.8
3.3
3.6
V
Power Saving Modes
I Shutdown
I Standby
I Ready
RC oscillator, main digital regulator, and low
power digital regulator OFF.
Register values maintained.
Crystal Oscillator and Main Digital Regulator ON,
all other blocks OFF.
—
—
—
30
50
2
—
—
—
nA
nA
mA
ISPI Active
SPI active state
1.35
mA
TUNE Mode Current
RX Mode Current
TX Mode Current
I Tune_RX
I Tune_TX
I RX
I TX
RX Tune
TX Tune
+10 dBm output power, 868 MHz
+13 dBm output power, 868 MHz
—
—
—
—
—
6.5
6.9
10
18
30
—
—
—
—
—
mA
mA
mA
mA
mA
*Note: All specifications are guaranteed by production test unless otherwise noted. Production test conditions and max limits
are listed in section "1.1. Definition of Test Conditions" on page 11.
4
Rev 1.1