BCM4354 Data Sheet
Sequencing of Reset and Regulator Control Signals
Figure 48: WLAN = ON, Bluetooth = OFF
32.678 kHz
Sleep Clock
90% of VH
VBAT*
VDDIO
~ 2 Sleep cycles
WL_REG_ON
BT_REG_ON
*Notes:
1. VBAT should not rise 10%–90% faster than 40 microseconds.
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.
Figure 49: WLAN = OFF, Bluetooth = ON
32.678 kHz
Sleep Clock
90% of VH
VBAT*
VDDIO
~ 2 Sleep cycles
WL_REG_ON
BT_REG_ON
*Notes:
1. VBAT should not rise 10%–90% faster than 40 microseconds.
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 .
Broadcom®
October 15, 2014 • 4354-DS109-R
Page 182
BROADCOM CONFIDENTIAL
CYPRESS [ CYPRESS ]
