参数资料
型号: 4421-DKDB2
厂商: Silicon Laboratories Inc
文件页数: 12/45页
文件大小: 0K
描述: KIT DEV TEST EZRADIO SI4421 TRX
标准包装: 1
附件类型: 测试卡,收发器,434MHz
适用于相关产品: EZRadio?
Si4421
Note 1: Measured with disabled clock output buffer
Note 2: Not using a 10 MHz crystal is allowed but not recommended because all crystal referred timing and frequency parameters
will change accordingly
Note 3: See the BER diagrams in the measurement results section (page 37) for detailed information
Note 4: See reference design with 50 Ohm Matching Network (page 39) for details
Note 5: See reference design with Resonant PCB Antenna (BIFA) on page 41 for details
Note 6: Optimal antenna admittance/impedance:
Si4421
433 MHz
868 MHz
915 MHz
Y antenna [mS]
2 – j5.9
1.2 - j11.9
1.49 - j12.8
Z antenna [Ohm]
52 + j152
7.8 + j83
9 + j77
L antenna [nH]
62
15.4
13.6
Note 7: Adjustable in 8 steps
Note 8: During the Power-On Reset period, commands are not accepted by the chip. In case of software reset (see Wake-Up Timer
Command , page 25) the reset timeout is 0.25ms typical.
Note 9: The crystal oscillator start up time strongly depends on the capacitance seen by the oscillator. Low capacitance and low
ESR crystal is recommended with low parasitic PCB layout design.
Note 10: By design
12
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