S2-LPS datasheet(72/73 Pages) STMICROELECTRONICS

72 / 73 page

List of figures

Figure 1.

Simplified S2-LPS block diagram ....................................................... 3

Figure 2.

Suggested application diagram (embedded SMPS used) ....................................... 5

Figure 3.

Suggested application diagram (embedded SMPS not used) .................................... 6

Figure 4.

Suggested application diagram HPM/LPM (integrated balun, embedded SMPS used) ................... 6

Figure 5.

Pin diagram, QFN24 (4x4 mm) package .................................................. 8

Figure 6.

Power-On-Reset timing and limits ...................................................... 19

Figure 7.

Start-up phase ................................................................... 20

Figure 8.

Examples of possible connections for SDN pin ............................................. 20

Figure 9.

Direct polar mode ................................................................. 25

Figure 10.

Output power ramping configuration .................................................... 32

Figure 11.

Threshold in FIFO ................................................................. 33

Figure 12.

State diagram.................................................................... 35

Figure 13.

SPI write sequence ................................................................ 42

Figure 14.

SPI read sequence ................................................................ 43

Figure 15.

SPI command sequence ............................................................ 43

Figure 16.

QFN24L (4x4 mm) package outline ..................................................... 62

Figure 17.

QFN24 4x4x1pitch 0.5 mm PCB pad pattern .............................................. 64

Figure 18.

QFN recommended soldering profiles ................................................... 64

S2-LPS

List of figures

DS13831 - Rev 1

page 72/73

S2-LPS Datasheet(PDF) 72 Page - STMicroelectronics