|
|
PDF LMX9820SBX Data sheet ( Hoja de datos )
| Número de pieza | LMX9820SBX | |
| Descripción | Bluetooth Serial Port Module | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de LMX9820SBX (archivo pdf) en la parte inferior de esta página. Total 40 Páginas | ||
|
No Preview Available !
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#
www.national.com
1 page  
5.0 Pad Descriptions
Pad Name
Clk-
Clk+
32kHz_CLKI
32kHz_CLKO
RF_inout
ISEL2
ISEL1
Pad
Location
B8
B9
B13
C13
H8
H13
J13
Table 2. System Interface Signals
Direction Description
Input
Input
Input
Output
Input/Output
Input
Input
Xtal g or Negative Clock Input. Typically connected along with
XTAL_D to an external surface mount AT cut crystal. Can also be con-
figured as a frequency input when using an external crystal oscillator.
When configured as a frequency input, typically connected to Ground
with a 10 pF capacitor.
Xtal d or Positive Clock Input. Typically connected along with
XTAL_G to an external surface mount AT cut crystal. Can also be con-
figured as a frequency input when using an external crystal oscillator.
When configured as a frequency input, is typically connected to an ex-
ternal Temperature Compensated Crystal Oscillator (TCXO) through
an Alternating Current (AC) coupling capacitor.
32 kHz Clock input. Not supported. Place pad and do not connect to
VCC or Ground.
32 kHz Clock Output. Not supported. Place pad and do not connect to
VCC or Ground.
RF Antenna Port. 50Ω nominal impedance. Typically connected to an
antenna through a 6.8pF capacitor.
Module Interface Select Input Bit 1.
Module Interface Select Input Bit 0.
Table 3. USB Interface Signals (Not supported by lmx9820 firmware)
Pad Name
Pad
Location
Direction Description
USB_VCC
F12
Input
USB Transceiver Power Supply + 1
USB_D+
E11 Input/Output USB Data Positive 1
USB_D-
E12 Input/Output USB Data Negative 1
USB_Gnd
G12
Input
USB Transceiver Ground 1
1. Treat as No Connect, Pad required for mechanical stability.
Pad Name
Uart_tx
Uart_rx
Uart_rts#
Uart_cts#
Pad
Location
D9
C9
C10
D10
Table 4. UART Interface Signals
Direction Description
Output
Input
Output
Input
UART Host Control Interface Transport, Transmit Data.
UART Host Control Interface Transport, Receive Data.
UART Host Control Interface Transport, Request to Send.
UART Host Control Interface Transport, Clear to Send.
Revision 1.0
5 www.national.com
5 Page 
6.0 Electrical Specifications (Continued)
Table 15. Transmitter Performance Characteristics
Symbol
Parameter
Condition
Min Typ1 Max Unit
POUTRF2
Transmit Output Power
2.402 GHz
2.441 GHz
-3 +1 +4 dBm
-3 +1 +4 dBm
2.480 GHz
-3 +1 +4 dBm
Power Density
Power Density
-4 1 2 dBm
MOD ∆F1AVG
Modulation Characteris-
tics
Data = 00001111
140 165 175 kHz
MOD ∆F2MAX3
Modulation Characteris-
tics
Data = 10101010
115 125
kHz
∆F2AVG/∆F1AVG4
Modulation Characteris-
tics
0.8
ACP5
Adjacent Channel Power
(In-band Spurious)
+ 500 kHz
|M-N|=2
-20 dBc
-50 -48 -20 dBm
|M-N|>3
-53 -51 -40 dBm
POUT2*fo6
PA 2nd Harmonic
Suppression
Maximum gain setting:
f0 = 2402 MHz,
Pout = 4804 MHz
-77 dB
POUT3*fo3
PA 3rd Harmonic
Suppression
Maximum gain setting:
f0 = 2402 MHz,
Pout = 7206 MHz
-98 dB
ZRFOUT7
RF Output Impedance/In-
put Impedance of RF Port
(RF_inout)
Pout @ 2.5 GHz
50 Ω
Return Loss8
Return Loss
-8 dB
1. Typical operating conditions are at 3.3V operating voltage and 25oC ambient temperature.
2. The output power is measured at the antenna port, including all front end losses for balun, TX/RX switch and filter.
3. ∆F2max > 115 kHz for at least 99.9% of all ∆f2max.
4. Modulation index set between 0.28 and 0.35.
5. Not tested in production.
6. Out-of-Band spurs only exist at 2nd and 3rd harmonics of the CW frequency for each channel. Performance of the
radio is significantly better than BT 1.1 specification.
7. Reference Smith chart Figure 8 on page 13.
8. Reference chart Figure 9 on page 14.
Symbol
fVCO
tLOCK
∆f0offset
∆f0drift
tD-Tx
Table 16. Synthesizer Performance Characteristics1
Parameter
Condition
Min Typ
VCO Frequency Range
2402
Lock Time
f0 + 20 kHz
Initial Carrier Frequency Tolerance During preamble
120
-75 0
Initial Carrier Frequency Drift
DH1 data packet
-25 0
DH3 data packet
-40 0
DH5 data packet
Drift Rate
-40 0
-20 0
Transmitter Delay Time
From Tx data to anten-
na
4
Max
2480
75
25
40
40
20
Unit
MHz
µs
kHz
kHz
kHz
kHz
kHz/50µs
µs
1. Frequency accuracy dependent on crystal or oscillator chosen. Crystal/oscillator must have cumulative accuracy
specifications of not more than +20 ppm to meet the Bluetooth specification.
Revision 1.0
11 www.national.com
11 Page | ||
| Páginas | Total 40 Páginas | |
| PDF Descargar | [ Datasheet LMX9820SBX.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| LMX9820SB | Bluetooth Serial Port Module | National Semiconductor |
| LMX9820SBX | Bluetooth Serial Port Module | National Semiconductor |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |