BCM43907 Power Management Unit Features
BCM43907 Preliminary Data Sheet
Figure 3: Typical Power Topology (Page 1 of 2)
WLRF TX Mixer and PA (not always)
WLRF LOGEN
1.2V
Cap-less
LNLDO
BCM43907 1.2V
Cap-less
LNLDO
1.2V
1.2V
WLRF LNA
VBAT
Operational:
Performance:
Cap-less
VCOLDO
2.3V to 4.8V
3.0V to 4.8V
WLRF AFE and TIA
WLRF TX
Absolute Maximum: 5.5V
1.2V
1.2V
Cap-less
LNLDO
VDDIO
Operational:
Cap-less
LNLDO
WLRF ADC REF
WLRF XTAL
3.3V
15 mA
1.2V
XTAL LDO
Mini-PMU
(Inside WL Radio)
WLRF RFPLL, PFD, and MMD
Audio PLL
VBAT
1.35V
1.2V
LNLDO
Core Buck
Regulator
(CBUCK)
1.2V
VDDIO
1.35V
BBPLL
LNLDO
WL BBPLL/DFLL
LPLDO1
REG_ON
1.3V, 1.2V,
.095V (AVS)
WLAN/CLB/Top, Always On
WL PHY
CLDO
WL Subcore
WL VDDM (SRAMS in AOS)
APPS VDDM
Power
switch
Supply bump/pad
Ground bump/pad
External to chip
Supply ball
No power switch
Ground ball
APPS SOCSRAM
APPS Subcore
No dedicated power switch, but internal power-
down modes and block-specific power switches
WLAN reset
ball
Broadcom®
March 12, 2016 • 43907-DS104-R
Page 19
BROADCOM CONFIDENTIAL
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