BCM43455 Preliminary Data Sheet
Pin Descriptions
Table 19: Signal Descriptions (Cont.)
Signal Name
WLBGA Ball
Type
Description
LDO 3.3V output.
VOUT_3P3
A4
O
Bluetooth Supplies
BT_PAVDD2P5
N6
L7
PWR
PWR
PWR
PWR
Bluetooth PA power supply.
BT_LNAVDD1P2
BT_IFVDD1P2
Bluetooth LNA power supply.
Bluetooth IF block power supply.
Bluetooth RF PLL power supply.
N5
M5
BT_PLLVDD1P2
FM Transceiver Supplies
FM_RFVDD1P2
N3
M2
PWR
PWR
FM RF power supply.
FM PLL power supply.
FM_PLLVDD1P2
WLAN Supplies
WRF_SYNTH_VDD3P3
WRF_PA_VDD3P3
WRF_PMU_VDD1P35
WRF_TXMIX_VDD
WRF_SYNTH_VDD1P2
WRF_AFE_VDD1P35
Miscellaneous Supplies
VDDC
H8
PWR
PWR
PWR
PWR
PWR
PWR
Synthesizer VDD 3.3V supply.
2 GHz and 5 GHz PA 3.3V VBAT supply.
PMU 1.35V supply.
N11
J11
M9
3.3V supply for the TX Mix.
1.2V supply for the synthesizer.
1.35V supply for the AFE.
J10
K10
C8, E2, F8, J5
D5
PWR
PWR
1.2V core supply for the WLAN.
VDDIO
1.8V–3.3V VDDIO supply for the WLAN.
Must be directly connected to
PMU_VDDO and BT_VDDO on the
PCB.
BT_VDDC
BT_VDDO
F2, J4, L1
G4
PWR
PWR
1.2V core supply for the BT.
1.8V–3.3V VDDIO supply for the BT.
Must be directly connected to
PMU_VDDO and VDDIO on the PCB.
VDDIO_SD
VDDIO_RF
D6
E7
PWR
PWR
1.8V–3.3V supply for the SDIO pads.
IO supply for the RF switch control pads
(3.3V).
AVDD_BBPLL
E9
PWR
PWR
PWR
PWR
1.2V supply for the baseband PLL.
1.2V supply for the PCIe PLL.
1.2V supply for the PCIe.
PCIE_PLL_AVDD1P2
VOUT_PCIELDO
PCIE_RXTX_AVDD1P2
Ground
C10
B2
B9
1.2V supply for the PCIe TX/RX.
WRF_VCO_GND
WRF_AFE_GND
WRF_XTAL_GND1P2
WRF_RX2G_GND
WRF_RX5G_GND
WRF_PA_GND3P3
WRF_GENERAL_GND
J8
GND
GND
GND
GND
GND
GND
GND
VCO/LOGEN ground.
AFE ground.
L9
G10
M8
K11
M10
K9
XTAL ground.
RX 2 GHz ground.
RX 5 GHz ground.
PA ground.
General ground.
Broadcom®
November 5, 2015 • 43455-DS109-R
Page 89
BROADCOM CONFIDENTIAL
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