SI4322-A1-FT Silicon Laboratories Inc, SI4322-A1-FT Datasheet - Page 6

• Manufacturer Part Number: SI4322-A1-FT
• Description: IC RCVR FSK 915MHZ 3.8V 16-TSSOP
• Manufacturer: Silicon Laboratories Inc
• Type: FSK Receiverr

Specifications of SI4322-A1-FT

• Package / Case: 16-TSSOP
• Frequency: 868MHz, 915MHz
• Sensitivity: -104dBm
• Data Rate - Maximum: 256 kbps
• Modulation Or Protocol: FSK
• Applications: Remote Control, RKE, Security Systems
• Current - Receiving: 14mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Features: RSSI Equipped
• Voltage - Supply: 2.2 V ~ 3.8 V
• Operating Frequency: 915 MHz
• Operating Supply Voltage: 2.5 V, 3.3 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Supply Current: 12 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Operating Temperature: -
• Memory Size: -
• Lead Free Status / Rohs Status: Supplier Unconfirmed
• Other names: 336-1628-5

Si4322
6
Table 2. AC Characteristics
(Test conditions: T
Receiver Frequency
Receiver Bandwidth
FSK Bit Rate
FSK Bit Rate
Receiver Sensitivity
AFC Locking Range
Input IP3
Input IP3
Co-Channel Rejection
Blocking Ratio
with CW Interferer
Maximum Input Power
RF Input Impedance
Real Part (differential)
RF Input Capacitance
(differential)
RSSI Accuracy
RSSI Range
Notes:
1. See matching circuit parameters and antenna design guide for information, and Application Notes available from
2. Using other than a 10 MHz crystal is not recommended because the crystal referred timing and frequency parameters
3. During the Power-On Reset period, commands are not accepted by the chip. In case of software reset, (see "13.
4. The crystal oscillator start up time strongly depends on the capacitance seen by the oscillator. Low capacitance and
5. Auto-calibration can be turned off.
Parameter
http://www.silabs.com.
will change accordingly.
Reset modes" on page 34) the reset timeout is 0.25 ms typical.
low ESR crystal is recommended with low parasitic PCB layout design.
1
OP
= 25 °C; V
1
AFC
BR
Symbol
BR
IIP3
IIP3
CCR
P
BRA
P
RS
BW
RS
DD
f
BR
R
C
10MHz
LO
max
2MHz
min
range
outh
in
in
inh
a
= 2.7 V)
r
BER = 10
433 MHz band, 10 kHz resolution
868 MHz band, 20 kHz resolution
915 MHz band, 20 kHz resolution
Out of band interferers: f – f
BR = 9.6 kbps, f
BR = 1.2 kbps, f
BER = 10
f
BER 10
With internal digital filters
interferer in the channel
interferer offset 10 MHz
FSK
interferer offset 2 MHz
LNA gain (–6, –18 dB)
LNA gain (0, –12 dB)
LNA: maximum gain
In band interferers
With analog filter
Same as above,
: FSK deviation in the
received signal
–2
Condition
–3
with continuous wave
–2
Mode 1
Mode 2
Mode 3
Mode 4
Mode 5
, BW = 135 kHz,
4 MHz
, BW = 135 kHz,
Rev. 1.2
FSK
FSK
= 60 kHz,
= 60 kHz
LO
>
400.96
801.92
881.92
Min
120
180
240
300
360
—
—
—
—
—
—
—
—
—
—
—
—
—
0
0.8 x f
–109
Typ
135
200
270
350
400
–21
–18
250
500
–4
54
59
±5
46
—
—
—
—
—
—
1
FSK
439.03
878.06
958.06
115.2
Max
150
225
300
375
450
256
—
—
—
—
—
—
—
—
—
—
—
—
—
Units
kbps
kbps
MHz
dBm
dBm
dBm
dBm
kHz
dB
dB
dB
dB
dB
pF
