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LMX9820 Datasheet(PDF) 3 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # LMX9820
Description  Bluetooth Serial Port Module
PDF  40 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LMX9820 Datasheet(HTML) 3 Page - National Semiconductor (TI)

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Revision 1.0
3
www.national.com
Table of Contents
1.0
General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1
APPLICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2.0
Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . . 1
3.0
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
3.1
DIGITAL HARDWARE . . . . . . . . . . . . . . . . . . . . . . 2
3.2
FIRMWARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
3.3
DIGITAL SMART RADIO . . . . . . . . . . . . . . . . . . . . 2
3.4
PHYSICAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
4.0
Connection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
5.0
Pad Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
6.0
Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . 8
6.1
GENERAL SPECIFICATIONS . . . . . . . . . . . . . . . . 8
6.2
DC CHARACTERISTICS . . . . . . . . . . . . . . . . . . . 9
6.3
RF PERFORMANCE CHARACTERISTICS . . . . 10
6.4
PERFORMANCE DATA (TYPICAL) . . . . . . . . . . 12
7.0
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . 14
7.1
BASEBAND AND LINK MANAGEMENT
PROCESSORS
14
7.1.1
Bluetooth Lower Link Controller . . . . . . . . . . . . 14
7.1.2
Bluetooth Upper Layer Stack . . . . . . . . . . . . . . 14
7.1.3
Profile support . . . . . . . . . . . . . . . . . . . . . . . . . 14
7.1.4
Application with command interface . . . . . . . . . 14
7.2
MEMORY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7.3
CONTROL AND TRANSPORT PORT . . . . . . . . . 15
7.4
AUXILIARY PORTS . . . . . . . . . . . . . . . . . . . . . . . 15
7.4.1
Reset_5100 and Reset_b . . . . . . . . . . . . . . . . 15
7.4.2
Operating Environment Pads
(Env0 and Env1)
15
7.4.3
Interface Select Inputs (ISEL1, ISEL2) . . . . . . 15
7.4.4
Module and LInk Status Outputs . . . . . . . . . . . 15
8.0
Digital Smart Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8.1
RADIO RECEIVER . . . . . . . . . . . . . . . . . . . . . . . 16
8.2
LOW NOISE AMPLIFIER (LNA) . . . . . . . . . . . . . 16
8.3
RX MIXER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8.4
CHANNEL SELECT FILTER . . . . . . . . . . . . . . . . 16
8.5
LIMITER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8.6
FM DISCRIMINATOR . . . . . . . . . . . . . . . . . . . . . 16
8.7
RECEIVE SIGNAL STRENGTH INDICATOR
(RSSI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8.8
RADIO TRANSMITTER . . . . . . . . . . . . . . . . . . . . 16
8.9
MODULATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8.10
TRANSMIT FREQUENCY OUTPUT . . . . . . . . . . 16
8.11
FREQUENCY SYNTHESIZERS . . . . . . . . . . . . . 16
8.12
CRYSTAL CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . 16
8.13
EXTERNAL CRYSTAL OSCILLATORS . . . . . . . 16
8.13.1 Crystal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
8.13.2 TCXO (Temperature Compensated Crystal
Oscillator) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
9.0
System Power-Up Sequence . . . . . . . . . . . . . . . . . . . 20
10.0
Integrated Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . 21
10.1
FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
10.1.1 Operation Modes . . . . . . . . . . . . . . . . . . . . . . 21
10.1.2 Default Connections . . . . . . . . . . . . . . . . . . . . 21
10.1.3 Event Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
10.1.4 Default Link Policy . . . . . . . . . . . . . . . . . . . . . 21
11.0
Low Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
11.1
POWER MODES . . . . . . . . . . . . . . . . . . . . . . . . 23
11.2
ENABLING AND DISABLING UART
TRANSPORT
23
11.2.1 Hardware Wake up functionality . . . . . . . . . . . 23
11.2.2 Disabling the UART transport layer . . . . . . . . 23
11.2.3 LMX9820 enabling the UART interface . . . . . 23
11.2.4 Enabling the UART transport layer
from the host
23
12.0
Command Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
12.1
FRAMING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
12.1.1 Start and End Delimiter . . . . . . . . . . . . . . . . . . 24
12.1.2 Packet Type ID . . . . . . . . . . . . . . . . . . . . . . . . 24
12.1.3 Opcode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
12.1.4 Data Length . . . . . . . . . . . . . . . . . . . . . . . . . . 24
12.1.5 Checksum: . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
12.2
COMMAND SET OVERVIEW . . . . . . . . . . . . . . 25
13.0
Usage Scenarios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
13.1
SCENARIO 1: POINT-TO-POINT
CONNECTION
29
13.2
SCENARIO 2: AUTOMATIC POINT-TO-POINT
CONNECTION
30
13.3
SCENARIO 3: POINT-TO-MULTIPOINT CONNEC-
TION
31
14.0
Application Information . . . . . . . . . . . . . . . . . . . . . . . 32
14.1
MATCHING NETWORK . . . . . . . . . . . . . . . . . . . 32
14.2
FILTERED POWER SUPPLY . . . . . . . . . . . . . . . 32
14.3
HOST INTERFACE . . . . . . . . . . . . . . . . . . . . . . 32
14.4
CLOCK INPUT . . . . . . . . . . . . . . . . . . . . . . . . . . 32
14.5
SCHEMATIC AND LAYOUT EXAMPLES . . . . . 32
15.0
Soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
16.0
Datasheet Revision History . . . . . . . . . . . . . . . . . . . . 38
17.0
Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . 40



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