SI4022-A1-FT Silicon Laboratories Inc, SI4022-A1-FT Datasheet - Page 6

• Manufacturer Part Number: SI4022-A1-FT
• Description: IC TX FSK 915MHZ 3.8V 16-TSSOP
• Manufacturer: Silicon Laboratories Inc
• Type: ISM Band FSK Transmitterr

Specifications of SI4022-A1-FT

• Package / Case: 16-TSSOP
• Frequency: 868MHz, 915MHz
• Applications: ISM
• Modulation Or Protocol: FSK
• Data Rate - Maximum: 115.2kbps
• Power - Output: 6dBm
• Current - Transmitting: 24mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 2.2 V ~ 3.8 V
• Operating Temperature: -40°C ~ 85°C
• Operating Frequency: 434 MHz to 915 MHz
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 2.5 V, 3.3 V
• Supply Current: 24 mA
• Supply Voltage (max): 3.8 V
• Supply Voltage (min): 2.2 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Memory Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 336-1623-5

Note 4:
Note 4:
Note 5:
Note 5:
Note 6:
Note 6:
AC Characteristics (continued)
Note 4:
Note 4:
Note 4: The maximum FSK bitrate and the output phase noise are dependent on the PLL settings (with the Extended Features
Note 5:
Note 5:
Note 5: Optimal antenna / admittance / inductance for the Si4022
Note 6:
Note 6:
Note 6: With selective resonant antennas (see: Application Notes available from http://www.silabs.com/integration).
Symbol
BR
I
P
P
P
C
Q
L
C
t
t
f
(bw1, bw0)
Band
868 MHz
915 MHz
out
r, f
r, f ,ckout
ckout, slow
out
max
out
sp
out
in, D
out
Setting
00
01
10
11
Command).
Parameter
FSK bit rate
Open collector output current
Available output power
Typical output power
Spurious emission
Output capacitance
Quality factor of the output
capacitance
Output phase noise
Digital input capacitance
Digital output rise/fall time
Clock output rise/fall time
Slow clock frequency
Max. datarate
1.35E-3 – j1.2E-2
1.45E-3 – j1.3E-2
Y
antenna
[kbps]
115.2
19.2
38.4
64
[S]
Conditions/Notes
(Note 4)
Adjustable in 8 steps
With optimal antenna impedance
(Note 5)
Adjustable in 8 steps
(3 dB/step)
Out of band, EIRP (Note 6)
Set by the automatic antenna
tuning circuit
100 kHz from carrier
1 MHz from carrier (Note 4)
15 pF pure capacitive load
10 pF pure capacitive load
Tolerance +/- 1 kHz
1 MHz offset [dBc/Hz]
Phase noise at
Z
8.7 + j77
antenna
9 + j82
-112
-110
-107
-102
[Ω]
P
max
Min
0.5
1.6
16
- 21
PLL bandwidth
15 kHz
30 kHz
60 kHz (POR default)
120 kHz
-105
Typ
2.2
-85
18
32
6
L
antenna
15.2
13.6
115.2
Max
P
-52
2.8
22
10
15
[nH]
6
max
2
dBc/Hz
Units
kbps
dBm
dBm
dBm
kHz
mA
pF
pF
ns
ns
Si4022
6