SI4362 Ver la hoja de datos (PDF) - Silicon Laboratories

Número de pieza

componentes Descripción

Fabricante

SI4362

HIGH-PERFORMANCE, LOW-CURRENT RECEIVER

Silicon Laboratories 

Si4362

Table 10. Operating State Response Time and Current Consumption*

State/Mode

Response Time to RX

Current in State/Mode

Shutdown State

Standby State

Sleep State

SPI Active State

Ready State

RX Tune State

RX State

15 ms

440 µs

440 µs

340 µs

122 µs

74 µs

75 µs

30 nA

50 nA

900 nA

1.35 mA

1.8 mA

7.2 mA

10 or 13 mA

Figure 6 shows the POR timing and voltage requirements. The power consumption (battery life) depends on the

duty cycle of the application or how often the part is in either Rx state. In most applications the utilization of the

standby state will be most advantageous for battery life but for very low duty cycle applications shutdown will have

an advantage. For the fastest timing the next state can be selected in the START_RX API command to minimize

SPI transactions and internal MCU processing.

3.3.1. Power on Reset (POR)

A power on reset (POR) sequence is used to boot the device up from a fully off or shutdown state. To execute this

process, VDD must ramp within 1ms and must remain applied to the device for at least 10 ms. If VDD is removed,

then it must stay below 0.15 V for at least 10 ms before being applied again. See Figure 6 and Table 11 for details.

VDD

VR RH

VR RL

tSR tPORH

Figure 6. POR Timing Diagram

Time

16

Rev 0.4

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