Pin Definitions - Laird BT800 Series Hardware Integration Manual

BT800-ST Hardware Integration Guide
Version 1.5
5 P D
IN EFINITIONS
Table 2: BT800 pin definitions
#
Pin Name
1
SPI_PCM#_SEL
2 VDD_HOST
3 GND
4
USB+
5 USB-
6 GND
7
VREG_IN_USB
8
VREG_EN_RST#
9
VREG_IN_HV
10
VREG_OUT_HV
11 GND
12 GND
13 GND
14 GND
15 GND
16 GND
17
RF
18 GND
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I/O
Input with weak
internal pull-down
Power supply
GND
Bidirectional
Bidirectional
GND
Power supply
Input with strong
internal pull-down
Analogue regulator
input / output
Analogue regulator
input / output
GND
GND
GND
GND
GND
GND
-
GND
Supply Description
Domain
High switches SPI/PCM lines to
SPI,
VDD_PADS Low switches SPI/PCM lines to
PCM/PIO
*See Note
(3.1V-3.6V) USB system positive supply
- Ground
USB data plus with selectable
VDD_HOST
internal 1.5kΩ pull-up resistor
VDD_HOST
- Ground
Analogue Input to USB regulator. Connect
regulator to external USB bus supply
input (USB_VBUS)
Take high to enable internal
regulators. Also acts as active
low reset. Maximum voltage is
VDD_PADS
VDD_PADS.
USB regulator is always
Note:
enabled and not
controlled by this pin.
Input to internal high-voltage
regulator to 1.8V regulator,
3.3V
3.3V output from USB
regulator.
Output from internal high-
voltage to 1.8V regulator. Input
1.8V
to second stage internal
regulators.
- Ground
- Ground
- Ground
- Ground
- Ground
- Ground
BT800- No connection
-
BT800-ST – Configured as RF
signal output (50 ohm)
- Ground
7
If
Unused
NC
1.
N/A
GND
NC
NC
GND
N/A
NC
N/A
N/A
GND
GND
GND
GND
GND
GND
-
GND
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