Si4311-B12/B21
1. Electrical Specifications
Table 1. Recommended Operating Conditions*
Parameter
Symbol
Test Condition
Min Typ Max Unit
Supply Voltage
VDD
2.7
3.3
3.6
V
Supply Voltage Powerup Rise Time
VDD-RISE
10
—
—
μs
Ambient Temperature
TA
–40
25
85
°C
*Note: All minimum and maximum specifications are guaranteed and apply across the recommended operating conditions.
Typical values apply at VDD = 3.3 V and 25 C unless otherwise stated. Parameters are tested in production unless
otherwise stated.
Table 2. DC Characteristics
(TA = 25 °C, VDD = 3.3 V, Rs = 50 Ω, FRF = 433.92 MHz unless otherwise noted)
Parameter
Symbol
Test Condition
Min
Typ
Max Unit
Supply Current
Reset Supply Current
High Level Input Voltage1
Low Level Input Voltage1
High Level Input Current1
Low Level Input Current1
High Level Output Voltage2
Low Level Output Voltage2
IVDD
IRST
VIH
VIL
IIH
IIL
VOH
VOL
—
20
—
mA
Reset asserted
—
2
TBD
µA
0.7 x VDD
—
VDD + 0.3 V
–0.3
—
0.3 x VDD V
VIN = VDD = 3.6 V
–10
—
10
µA
VIN = 0 V, VDD = 3.6 V
–10
—
10
µA
IOUT = 500 µA
0.8 x VDD
—
—
V
IOUT = –500 µA
—
—
0.2 x VDD V
Notes:
1. For input pins 315/434, AFC, BT[1:0], and DEV[1:0].
2. For output pin DOUT.
Table 3. Reset Timing Characteristics
(VDD = 3.3 V, TA = 25 °C)
Parameter
RST Pulse Width
Symbol
Min
Typ
Max
Unit
tSRST
100
—
—
µs
tSRST
70%
RST
30%
Figure 1. Reset Timing
4
Rev. 1.0