LMX9820A Datasheet, PDF (1/44 Pages) National Semiconductor (TI) – Bluetooth Serial Port Module

APRIL 2005
Revision 1.0
LMX9820A
Bluetooth^® Serial Port Module
1.0 General Description
The National Semiconductor LMX9820A Bluetooth Serial
Port module is a highly integrated radio, baseband control-
ler, and memory device implemented on an FR4 substrate.
All hardware and firmware is included to provide a com-
plete solution from antenna from the complete lower and
upper layers of the Bluetooth stack, up to the application
support layers including the Generic Access Profile (GAP),
the Service Discovery Application Profile (SDAP), and the
Serial Port Profile (SPP). The module includes a config-
urable service database to fulfill service requests for addi-
tional profiles on the host. The LMX9820A features a small
form factor (10.1 x 14.1 x 2.0 mm) design, which solves
many of the challenges associated with compact system
integration. Moreover, the LMX9820A is pre-qualified as a
Bluetooth Integrated Component. Conformance testing
through the Bluetooth qualification program enables a fast
time to market after system integration by ensuring a high
degree of compliance and interoperability.
Based on National’s CompactRISC^™ 16-bit processor
architecture and Digital Smart Radio technology, the
LMX9820A is optimized to handle the data and link man-
agement processing requirements of a Bluetooth node.
The firmware supplied with this device offers a complete
Bluetooth (v1.1) stack including profiles and command
interface. This firmware features point-to-point and point-
to-multipoint link management supporting data rates up to
the theoretical maximum over RFComm of 704 kbps. The
internal memory supports up to three active Bluetooth data
links and one active SCO link.
1.1 APPLICATIONS
■ Personal Digital Assistants
■ POS Terminals
■ Data Logging Systems
■ Audio Gateway applications
2.0 Functional Block Diagram
LINK
MGMNT
PROCESSOR
(LMP)
FIRMWARE
(INCLUDES
PROFILES AND
COMMAND
INTERFACE)
UART
LNA
TR
SW
PA
DIGITAL
SMART
RADIO
SYNTHESIZER
BASEBAND
CONTROLLER
COMPACTRISC™
CORE
AUX
PORTS
FLASH
RAM
ADVANCED
AUDIO INTERFACE
JTAG
INTERFACE
SELECT
VOLTAGE
REGULATORS
ANALOG
DIGITAL
CRYSTAL/OSCILLATOR
AAI_STD
AAI_SFS
AAI_SRD
AAI_SCLK
VCC
DIG_GND[1:2]
UART_RX
UART_TX
UART_RTS#
UART_CTS#
IOVCC
TX_SWITCH_P
ENV0
ENV1
LSTAT_0
LSTAT_1
HOST_WU
RESET_B#
RESET_5100#
ISEL1
ISEL2
VDD_ANA_OUT
VDD_DIG_OUT
VDD_DIG_PWR_D#
CompactRISC is a trademark of National Semiconductor Corporation.
Bluetooth is a registered trademark of Bluetooth SIG, Inc. and is used under license by National Semiconductor.
© 2005 National Semiconductor Corporation
www.national.com