BCM43362KUBGT Datasheet, PDF (53/84 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 (Cont.)
Ball #
E5
J6
J7
Signal Name
GPIO_1/BTCX_FREQ
BTCX_STATUS/GPIO_4
BTCX_RF_ACTIVE/
GPIO_5
Type Description
I
By default, this pin behaves as a GPIO. However, it can be
programmed via software to behave as a coexistence signal
that indicates that the coexisting BT is about to transmit on a
restricted channel.
I
Coexistence signal indicating Bluetooth priority status and TX/
RX direction. This pin is muxed and can be changed to a GPIO
via software.
I
Coexistence signal indicating that Bluetooth is active. This pin is
muxed and can be changed to a GPIO via software.
Note: The above Bluetooth coexistence and GPIO signals have keepers that prevent them from floating when
they aren’t connected; however, when they are connected to another component, prevention from floating can’t
be assured by the keepers.
Integrated Voltage Regulators
H1
VOUT_3P3
K3
VOUT_LNLDO1
J1, K1 SR_VDDBAT1
J2
SR_VDDBAT2
J3
EXT_SMPS_REQ
K4
EXT_PWM_REQ
L1
SR_VLX
L3
VDD_LDO
L4
VOUT_CLDO
O 3.3V low noise LDO output (40 mA)
O 1.2V output for low noise LDO1, 150 mA
I
Battery voltage input for CBUCK
I
Battery voltage input for band gap and LDOP3
I
Internal 200 kΩ pull-down resistor included.
VIH = 1.08V to 3.6V, and VIL < 0.4V.
Note: Driving this input high sets CBUCK to External mode, but it
does not power down the rest of the PMU. The PMU powers down
when WL_RST_N is low.
Note: This pin is only used if the BCM43362 switching regulator
is also used to power an external device. This pin should be
connected to ground for applications that do not use this feature.
I
Driving this input high forces CBUCK into PWM mode. Internal
200 kΩ pull-down resistor included.
VIH = 1.08V to 3.6V, and VIL < 0.4V.
Note: This pin is only used if the BCM43362 switching regulator
is also used to power an external device. This pin should be
connected to ground for applications that do not use this feature.
O Core buck regulator: output to inductor
I
Input supply pin for CLDO and LNLDO1 (also acts as the
voltage feedback for CBUCK).
O 1.2V output from the core LDO, 150 mA
Broadcom_®
February 13, 2015 • 43362-DS106-R
IEEE 802.11 b/g/n MAC/Baseband/Radio + SDIO
Page 52
BROADCOM CONFIDENTIAL