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Document Number: 002-14949 Rev. *G
Page 105 of 113
PRELIMINARY
CYW43353
Figure 43. WLAN = OFF, Bluetooth = OFF
Figure 44. WLAN = ON, Bluetooth = OFF
VBAT*
VDDIO
WL_REG_ON
BT_REG_ON
32.678 kHz
Sleep Clock
*Notes:
1. VBAT should not rise 10%–90% faster than 40 microseconds or slower than 10 milliseconds.
2. VBAT should be up before or at the same time as VDDIO. VDDIO should NOT be present first or be held high before VBAT is high.
VBAT*
VDDIO
WL_REG_ON
BT_REG_ON
90% of VH
~ 2 Sleep cycles
32.678 kHz
Sleep Clock
*Notes:
1. VBAT should not rise 10%–90% faster than 40 microseconds or slower than 10 milliseconds.
2. VBAT should be up before or at the same time as VDDIO. VDDIO should NOT be present first or be held high before VBAT is high.
3. Ensure that BT_REG_ON is driven high at the same time as or before WL_REG_ON is driven high. BT_REG_ON can be driven low 100 ms after WL_REG_ON goes high.
100 ms