LMX9820 Datasheet, PDF (1/40 Pages) National Semiconductor (TI) – Bluetooth Serial Port Module

June 2004
LMX9820
Bluetooth™ Serial Port Module
1.0 General Description
The National Semiconductor^® LMX9820 Bluetooth™ Serial
Port module is a highly integrated radio, baseband control-
ler and memory device implemented on an LTCC (Low
Temperature Co-fired Ceramic) substrate. All hardware
and firmware is included to provide a complete solution
from antenna through the complete lower and upper layers
of the Bluetooth stack, up to the application including the
Generic Access Profile (GAP), the Service Discovery Appli-
cation Profile (SDAP), and the Serial Port Profile (SPP).
The module includes a configurable service database to
fulfil service requests for additional profiles on the host.
The LMX9820 features a small form factor (10.1 x 14.0 x
1.9 mm) design; thus, solving many of the challenges
associated with system integration. Moreover, the
LMX9820 is pre-qualified as a Bluetooth Integrated Com-
ponent. Conformance testing through the Bluetooth qualifi-
cation program enables a short time to market after system
integration by insuring a high probability of compliance and
interoperability.
Based on National’s CompactRISC^™ 16-bit processor
architecture and Digital Smart Radio technology, the
LMX9820 is optimized to handle the data and link manage-
ment processing requirements of a Bluetooth node.
The firmware supplied within 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
links.
1.1 APPLICATIONS
■ Personal Digital Assistants
■ POS Terminals
■ Data Logging Systems
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
JTAG
INTERFACE
SELECT
VOLTAGE
REGULATORS
ANALOG
DIGITAL
CRYSTAL/OSCILLATOR
VCC
CompactRISC is a trademark of National Semiconductor Corporation.
Bluetooth is a trademark of Bluetooth SIG, Inc. and is used under license by National Semiconductor.
© 2004 National Semiconductor Corporation
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#
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