BCM4330 Preliminary Data Sheet
Power Supply Topology
Internal WLAN PAs
WL Radio
RF PLL
WL OTP
(3.3V)
WL AFE
LN LDO1
(1.2V, 300 mA)
BT Radio
Xtal
LDO3p1
(2.5V, 80 mA)
FM Radio
RF Switch Controls
BT Class 1 PA
Core logic blocks
LDO3p3
(3.3V, 80 mA)
Vbat 2.3—4.8V
Core Buck
Regulator
BT_REG_ON
(1.5V, 500 mA)
WL_REG_ON
WL Digital
CLDO
WL OTP (1.2V)
(1.2V, 150 mA)
BT Digital
FM Digital
VIO
WL_VDDIO* and BT_VDDIO*
Notes:
* VDDIO, including WL_VDDIO and BT_VDDIO tied together, low
state shuts down all PMU, and VDDIO is detected as high by the
PMU if it falls within 1.08— 3.6V.
Shaded areas are internal to the BCM4330
Figure 4: Typical Power Topology
®
BROADCOM
BCM4330 Preliminary Data Sheet
April 28, 2011 • 4330-DS304-RI
Page 27
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