SI4421-A1-FT Silicon Laboratories Inc, SI4421-A1-FT Datasheet - Page 36

• Manufacturer Part Number: SI4421-A1-FT
• Description: IC TXRX FSK 915MHZ 3.8V 16-TSSOP
• Manufacturer: Silicon Laboratories Inc

Specifications of SI4421-A1-FT

• Package / Case: 16-TSSOP
• Frequency: 433MHz, 868MHz, 915MHz
• Data Rate - Maximum: 256kbps
• Modulation Or Protocol: FSK
• Power - Output: 7dbm
• Sensitivity: -110dBm
• Voltage - Supply: 2.2 V ~ 3.6 V
• Current - Receiving: 15mA
• Current - Transmitting: 28mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Number Of Receivers: 2
• Number Of Transmitters: 2
• Wireless Frequency: 433 MHz to 915 MHz
• Interface Type: SPI
• Output Power: 5 dBm to 7 dBm
• Operating Supply Voltage: 2.2 V to 3.8 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Maximum Supply Current: 25 mA
• Minimum Operating Temperature: - 40 C
• Modulation: FSK
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Applications: -
• Memory Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1631-5

TYPICAL PERFORMANCE CHARACTERISTICS
Channel Selectivity and Blocking:
Note:
Phase Noise Performance in the 433, 868 and 915 MHz Bands:
(Measured under typical conditions: T
 LNA gain maximum, filter bandwidth 67 kHz, data rate 9.6 kbps, AFC switched off, FSK deviation ± 45 kHz, V
 Measured according to the descriptions in the ETSI Standard EN 300 220-1 v2.1.1 (2006-01 Final Draft), section 9
 The ETSI limit given in the figure is drawn by taking -106dBm at 9.6kbps typical sensitivity into account, and corresponds to
receiver class 2 requirements (section 4.1.1)
90
80
70
60
50
40
30
20
10
0
0
1
op
433 MHz
= 27
2
o
C; V
868 MHz
3
CW interferer offset from carrier [MHz]
dd
= V
4
915 MHz
oc
= 2.7 V)
5
6
7
8
9
10
ETSI
434 MHz
868 MHz
11
12
dd
= 2.7 V
Si4421
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