参数资料
型号: 4431-T-B1 D 470
厂商: Silicon Laboratories Inc
文件页数: 24/47页
文件大小: 799K
描述: KIT DEV TEST EZRADIOPRO SI4431
标准包装: 1
附件类型: 测试卡,收发器,470MHz
适用于相关产品: EZRadioPRO?
Si4430/31/32-B1
24
Rev 1.1
3.4. System Timing
The system timing for TX and RX modes is shown in Figures 8 and 9. The figures demonstrate transitioning from
STANDBY mode to TX or RX mode through the built-in sequencer of required steps. The user only needs to
program the desired mode, and the internal sequencer will properly transition the part from its current mode.
The VCO will automatically calibrate at every frequency change or power up. The PLL T0 time is to allow for bias
settling of the VCO. The PLL TS time is for the settling time of the PLL, which has a default setting of 100 祍. The
total time for PLL T0, PLL CAL, and PLL TS under all conditions is 200 祍. Under certain applications, the PLL T0
time and the PLL CAL may be skipped for faster turn-around time. Contact applications support if faster turnaround
time is desired.
Figure 8. TX Timing
Figure 9. RX Timing
TX Packet
XTAL Settling
Time
600us
RX Packet
XTAL Settling
Time
600us
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