BCM4319 Preliminary Data Sheet
Signal Descriptions
Table 6: 138-Ball WLBGA Signal Descriptions (Cont.)
Ball
Signal Name
Type Description
Miscellaneous Power Supplies
WG9
VDDIO_SD
VDDIO_SD
I
I
SDIO I/O supply (1.8V to 3.3V)
VDDIO_SD should be supplied externally if the SDIO
interface is used.
WG10
Even if the SDIO interface is not used, VDDIO_SD should
not be grounded (instead, the PALDO output can be used
for VDDIO_SD. Alternately VDDIO_SD can use the same
supply as VDDIO).
WJ2
WK2
VDDIO_RF
VDDIO_RF
I
I
RF I/O supply (2.6V to 3.3V)
VDDIO_RF should be supplied externally (it cannot be
supplied from the PALDO) when the RF front-end is shared
with other devices, such as Bluetooth. The same external
supply should be used for pulls-ups, because PALDO is
shutdown during sleep mode and when the BCM4319 is
powered down.
WF6
VDDIO
I
I
I
I
I
I
I
I
I
I
Digital I/O supply (1.8V to 3.3V)
VDDIO should be supplied externally
WK7
WC10
WF7
VDDIO
VDD
1.2V digital core supply
VDD
WK5
WB11
WK6
WL1
VDD
VDDXO
1.2V crystal oscillator filtered power supply
3.3V OTP power supply (no lower than 3.0V)
USB Phy analog 2.5V supply
OTP_VDD33
USB20PHY_AVDD25_PAD
USB20PHY_AVDD12_PAD
USB20PHY_AVDD33_PAD
WL2
USB Phy core 1.2V supply
WM2
Ground
WD10
WF5
USB Phy analog 3.3V supply
VSS
–
Digital ground
WK4
WM5
WD11
WN10
WM10
WM8
WM9
WA1
AVSS_LDO
–
–
–
–
–
–
–
–
–
–
–
–
–
Ground
VSSXO
Crystal oscillator ground
Ground
SR_PVSS1
SR_PVSS1
Ground
SR_PAVSS
Ground
SR_AVSS
Ground
WRF_GNDPAA_3P3
WRF_GNDTX_1P2
WRF_GNDCAB_1P2
WRF_GNDRX_1P2
WRF_GNDD_1P2
WRF_GNDPAA_3P3
WRF_GNDPAG_3P3
Ground
WA2
Ground
WA9
Ground
WB5
WB8
WC1
WC2
Ground
Ground
Ground
Ground
Broadcom®
Single-Chip IEEE 802.11™ a/b/g/n MAC/Baseband/Radio
Page 53
April 2, 2014 • 4319-DS05-R
CYPRESS [ CYPRESS ]
