SI4322-A1-FT Silicon Laboratories Inc, SI4322-A1-FT Datasheet - Page 9

• 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

2. Typical Application Schematic
2.1. Recommended Supply Decoupling Capacitor Values
C2 and C3 should be 0603 size ceramic capacitors to achieve the best supply decoupling.
Table 5. Pin Function vs. Operation Mode
Note: The fe bit can be found in the "5.14. FIFO Settings Command" on page 25.
Bit setting
fe
1
0
nRESET
Receiver FIFO disabled
µC
Receiver FIFO enabled
CLK
Function
P0
P1
P2
P3
P4
P5
P6
P7
1-10 MHz or 32.768 kHz
nRES (optional)
CLK (optional)
SMD size
Property
Dielectric
Band [MHz]
*
*
*
:
433
868
915
Optional connections to
support fast data transfer .
Can be left open if not used .
(RX data FIFO can be accessed)
nIRQ
nFFS
FFIT
VDI (optional)
SDI
SCK
nSEL
SDO
Tantalum
C1
2.2 µF
2.2 µF
2.2 µF
A
1
2
3
4
5
6
7
8
C1
RX data output
Rev. 1.2
nFFS input
Si4322
Pin 6
Ceramic
0603
10 nF
10 nF
10 nF
C2
C2
16
15
14
13
12
11
10
9
Ceramic
220 pF
47 pF
33 pF
0603
C3
C3
VDD
C4
2.2 nF (opt.)
10 MHz
X1
RX data clock output
PCB Antenna
FFIT output
or matching
network to
50 Ohm
C1
Pin 7
VDD
C2 C3
Si4322
9