BCM20705 Datasheet, PDF (41/67 Pages) Cypress Semiconductor – Single-Chip Bluetooth Transceiver and Baseband Processor

BCM20705 Data Sheet
Pin-out and Signal Descriptions
Section 7: Pin-out and Signal Descriptions
Pin Descriptions
Table 6: BCM20705 Signal Descriptions
Signal
Radio
RES
WFBGA Pin
(50-Ball)
F3
RFP
D1
XIN
G2
XOUT
G3
Analog
LPO_IN
B4
Voltage Regulators
REG_EN
B2
VBAT
A3
VREGHV
A2
VREG
A1
Straps
CFG_SEL
B8
OTP_DIS
B7
RST_N
A4
TM0
–
TM1
–
TM2
E3
Digital I/O
GPIO_0
B5
GPIO_1
B3
GPIO_3
D8
Power
I/O Domain
O VDD_RF
I/O VDD_RF
I
VDD_RF
O VDD_RF
I
VDDRF
I
VDDO
I
N/A
I/O N/A
O N/A
I/O VDDO
I/O VDDO
I
VDDO
I
VDDO
I
VDDO
I
VDDO
I/O VDDO
I/O VDDO
I/O VDDO
GPIO_4
–
GPIO_5
F4
I/O VDDO
I/O VDDO
Description
External calibration resistor,
15 kΩ @ 1%
RF I/O antenna port
Crystal or reference input
Crystal oscillator output
External LPO input
HV LDO and main enable
HV LDO input
HV LDO output: main LDO input
Main LDO output
This pin is floating for the 20 MHz XTAL option and
tied to ground for the 26 MHz XTAL option.
OTP disable pin. By default, leave this pin floating.
Active-low reset input
Clock request polarity select
Internally connected to ground
Reserved: connect to ground.
GPIO/BT_WAKE
GPIO/HOST_WAKE.
GPIO/LINK_IND
Note: Can be configured for active high or low as
well as open drain.
GPIO
GPIO/CLK_REQ
TCXO-OR Function Out available on some
packages. See Section 11: “Ordering Information,”
on page 65.
Broadcom®
Bluetooth Transceiver and Baseband Processor
November 13, 2014 • MCS20705-DS104-R
Page 40
BROADCOM CONFIDENTIAL