BCM4390DKWBGT Datasheet, PDF (14/78 Pages) Cypress Semiconductor – WICED™ Wi-Fi IEEE 802.11 b/g/n SoC with Embedded Application Processor

BCM4390 Advance Data Sheet
Figure 3 shows the regulators and a typical power topology.
Figure 3: Typical Power Topology
Areas with hatching are
off-chip
BCM4390
WL_REG_ON
APPS_REG_ON
VBAT
Core Buck
Regulator
CBUCK
Peak 600 mA
Average 275 mA
Off-chip
area
1.35V
Internal LNLDO
(80 mA)
Internal LNLDO
(80 mA)
Internal VCOLDO
(80 mA)
Internal LNLDO
(80 mA)
XTAL LDO
(30 mA)
LNLDO
(10 mA)
1.2V
1.2V
1.2V
1.2V
1.2V
1.2V
Off-chip area
VDDIO
LPDO1
(3 mA)
1.1V
CLDO
Peak 300 mA
Average 175 mA
(Bypass in deep-sleep)
1.2—1.1V
VDDIO
VBAT
LDO3P3
Peak 800–450 mA
3.3V
Average 200 mA
Power Supply Topology
WL RF – AFE
WL RF – TX (2.4 GHz)
WL RF – LOGEN (2.4 GHz)
WL RF – RX/LNA (2.4 GHz)
WL RF – XTAL
WL RF – RFPLL PFD/MMD
APPS ANALOG
WLAN BBPLL/DFLL
WLAN/APPS CPU/CLB/Top
(Always on)
WL OTP
WL PHY
WL DIGITAL
APPS CPU DIGITAL
WL/APPS CPU SRAMs
MEMLPLDO
(3 mA)
0.9V
Internal
LNLDO
(25 mA)
Internal
LNLDO
(8 mA)
WL PA/PAD (2.4 GHz)
VDDIO_RF
WL OTP 3.3V
2.5V WL RF – VCO
2.5V WL RF – CP
BROADCOM ®
February 5, 2014 • 4390-DS103-R
BROADCOM CONFIDENTIAL
WICED Wi-Fi IEEE 802.11 SoC w/Embedded App Processor
Page 13