BT830 Hardware Integration Guide
Version 1.3
Embedded Wireless Solutions Support Center:
http://ews-support.lairdtech.com
www.lairdtech.com/bluetooth
6
Laird Technologies
Americas: +1-800-492-2320
Europe: +44-1628-858-940
Hong Kong: +852-2923-0610
B
LOCK
D
IAGRAM AND
D
ESCRIPTIONS
Figure 2: BT830 module block diagram
CS8811A08
(Main chip)
The BT830 is based on the CSR8811A08 dual mode chip. The chip is a single-chip radio with
on-chip LDO regulators and baseband IC for Bluetooth 2.4 GHz systems including EDR to 3 Mbps.
Dedicated signal and baseband processing is included for full Bluetooth operation. The chip
provides PCM/I2S and UART interfaces. Up to four general purpose I/Os are available for general
use such as Wi-Fi coexistence or general indicators.
Note: The purpose of the SPI interface is to access the module’s inner settings such as selecting
different WLAN CO-EXIST scheme. The SPI interface can also be used to place the module in
RF test mode. You cannot use the module over the SPI interface for normal operation as the
main host interface.
Antenna
Options
BT830-SA – The antenna is a ceramic monopole chip antenna.
BT830-ST – Provides a SMT pad for connecting an external antenna.
Band Pass
Filter
The band pass filter filters the out-of-band emissions from the transmitter to meet the specific
regulations for type approvals of various countries.
Crystal
The embedded 26 MHz crystal is used for generating the clock for the entire module.