BT800 Hardware Integration Guide
Version 0.2
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www.lairdtech.com/bluetooth
9
CONN-GUIDE-BT800_v0_2
Implementation
note
.
”
6
P
IN DEFINITIONS
#
Pin Name
I/O
Supply
Domain
Description
1
SPI_PCM#_SEL
Input with weak
internal pull-down
VDD_PADS
High switches SPI/PCM lines to SPI,
Low switches SPI/PCM lines to
PCM/PIO
2
VDD_HOST
Power supply
(3.1V-3.6V)
USB system positive supply
3
GND
GND
-
Ground
4
USB+
Bidirectional
VDD_HOST
USB data plus with selectable
internal 1.5k
Ω
pull-up resistor
5
USB-
Bidirectional
VDD_HOST
6
GND
GND
-
Ground
7
VREG_IN_USB
Power supply
Analogue
regulator
input
Input to USB regulator. Connect to
external
USB bus supply, e.g. USB_VBUS
8
VREG_EN_RST#
Input with strong
internal pull-down
VDD_PADS
Take high to enable internal
regulators. Also acts as active low
reset. Maximum voltage is
VDD_PADS.
Note:
USB regulator is always
enabled and not controlled by
this pin
9
VREG_IN_HV
Analogue regulator
input / output
3.3V
Input to internal high-voltage
regulator to 1.8V regulator, 3.3V
output from USB regulator.
10 VREG_OUT_HV
Analogue regulator
input / output
1.8V
Output from internal high-voltage
to 1.8V regulator. Input to second
stage internal regulators.
11 GND
GND
-
Ground
12 GND
GND
-
Ground
13 GND
GND
-
Ground
14 GND
GND
-
Ground
15 GND
GND
-
Ground
16 GND
GND
-
Ground