BCM4319XKUBGT Datasheet, PDF (50/84 Pages) Cypress Semiconductor – Single-Chip IEEE 802.11™ a/b/g/n MAC/Baseband/ Radio with Integrated SDIO and USB Interfaces

BCM4319 Preliminary Data Sheet
Signal Descriptions
Signal Descriptions
138-Ball WLBGA Package
Signal descriptions for the 138-Ball WLBGA are provided in Table 6. *See Table 7: “SDIO Pin Descriptions,” on
page 54 for additional information.
Note: Digital IOs are not failsafe. Other devices should not drive BCM4319 lines when the
corresponding IO supply is absent. If such a requirement exists in the system, add a series resistor
greater than 3.9 KΩ on the line.
Note: Internal pulls on digital IOs are active only when VDDC and the corresponding IO supply are
present.
Note: XTALIN is failsafe.
Table 6: 138-Ball WLBGA Signal Descriptions
Ball
Signal Name
RF Interface
WE1
WRF_RFOUTP_G
WA6
WRF_RFINP_G1
WA8
WRF_RFINN_G1_XFMR
WE3
WRF_AFE_PAD_TSSI_G
Type
O
I
O
I
WB2
WRF_RFOUTP_A
O
WA4
WRF_RFINP_A1
I
WB4
WRF_RFINN_A1_XFMR
I
WH3
WRF_AFE_PAD_TSSI_A
I
WB9
WRF_RES_EXT
O
RF Control Lines (IO Supply = VDDIO_RF)
WG8
RF_SW_CTRL_P_0
O
WG7
RF_SW_CTRL_N_0
O
WH9
RF_SW_CTRL_P_2
O
WH8
RF_SW_CTRL_N_2
O
WJ6
RF_SW_CTRL_P_3
O
WJ5
RF_SW_CTRL_N_3
O
WH7
GMODE_TX_PU
O
WG5
GMODE_EXT_LNA_PU
O
WG6
GMODE_EXT_LNA_GAIN
O
WJ1
AMODE_TX_PU
O
Description
802.11g internal power amplifier RF output
802.11g RX RF input (50Ω)
802.11g RX transformer RF ground
Transmit signal strength indicator for optional external
802.11g power amplifier. Leave NC if not used.
802.11a internal power amplifier RF output.
802.11a RX RF input (50Ω)
802.11a RX transformer RF ground
Transmit signal strength indicator for optional external
802.11a power amplifier. Leave NC if not used.
Connect to external 15 kΩ (1% tolerance) resistor to
ground.
Programmable RF switch control lines: default = low.
Programmable RF switch control line: default = high.
Programmable RF switch control line: default = low.
802.11g optional external PA control
Enable signal for optional external 802.11g LNA
Control signal for optional external 802.11g LNA
802.11a optional external PA control
Broadcom^®
April 2, 2014 • 4319-DS05-R
Single-Chip IEEE 802.11™ a/b/g/n MAC/Baseband/Radio
Page 49