BCM43362KUBG Datasheet, PDF (49/84 Pages) Cypress Semiconductor – Single-Chip IEEE 802.11™ b/g/n MAC/Baseband/Radio + SDIO

BCM43362 Data Sheet
Signal Assignments
Table 8: WLBGA Signal Descriptions
Ball # Signal Name
Type Description
WLAN RF Interface
A1
WRF_RFIN
B1
WRF_RFOUT
D5
WRF_RES_EXT
I
WLAN IEEE 802.11n RX input (50Ω)
O WLAN IEEE 802.11n internal power amplifier output (50Ω)
I
Connect to external 15 kΩ resistor (1%) to ground
RF Control Lines (IO Supply = VDDIO_RF)
E1
RF_SW_CTRL0
F1
RF_SW_CTRL1
O RF switch control line. Default at this pin is high.
O RF switch control line. Default at this pin is low.
G2
RF_SW_CTRL2
O RF switch control line. Default at this pin is low.
F2
RF_SW_CTRL3
O RF switch control line. Default at this pin is low.
Note:
1. Use only RF_SW_CTRL1 and RF_SW_CTRL2 unless diversity is required, in which case RF_SW_CTRL0
and RF_SW_CTRL3 can also be used to select the antenna for a pair of SPDT switches.
2. For a transfer switch, use only RF_SW_CTRL1 and RF_SW_CTRL2 with the main antenna to Rx when
RF_SW_CTRL1 is high.
3. For a diamond-type switch, do the following:
– RF_SW_CTRL0 must select WLAN Tx, aux antenna.
– RF_SW_CTRL1 must select WLAN Rx, main antenna.
– RF_SW_CTRL2 must select WLAN Tx, main antenna.
– RF_SW_CTRL2 must select WLAN Rx, aux antenna.
4. For cases where a shared antenna is used for WLAN and Bluetooth, RF_SW_CNTRL_0 defaults to HIGH
when the BCM43362 is in reset. Use a switch topology in which the Bluetooth RF path is connected to the
antenna when this signal is HIGH. This allows Bluetooth access to the antenna when WLAN is in reset.
5. The following is a list of the internal pull-up/pull-down resistor strengths for the RF switch control lines when
the BCM43362 is in reset:
Minimum
Typical
Maximum
– pup @ 3.3V
39K
58K
69K
– pdn @ 3.3V
39K
58K
67K
6. The default drive strength is 6.0 mA.
Broadcom_®
February 13, 2015 • 43362-DS106-R
IEEE 802.11 b/g/n MAC/Baseband/Radio + SDIO
Page 48
BROADCOM CONFIDENTIAL