LMX9838SB/NOPB National Semiconductor, LMX9838SB/NOPB Datasheet - Page 5

• Manufacturer Part Number: LMX9838SB/NOPB
• Description: IC MODULE BLUETOOTH PORT 70LTCC
• Manufacturer: National Semiconductor

Specifications of LMX9838SB/NOPB

• Frequency: 2.4GHz
• Data Rate - Maximum: 704kbps
• Modulation Or Protocol: Bluetooth v2.0, Class 2
• Applications: PDA's, POS Terminals
• Power - Output: 0dBm
• Sensitivity: -80dBm
• Voltage - Supply: 2.5 V ~ 3.6 V
• Current - Receiving: 65mA
• Current - Transmitting: 65mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: On-Board, Chip
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 70-LTCC
• Physical Interfaces: UART
• Data Rate: 704Kbps
• Operating Temperature Range: -40°C To +85°C
• Msl: MSL 4 - 72 Hours
• Frequency Max: 2480MHz
• Filter Terminals: SMD
• Frequency Min: 2402MHz
• No. Of Pins: 70
• Rohs Compliant: Yes
• For Use With: LMX9838DONGLE - KIT DESIGN DONGLE FOR LMX9838
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Lead Free Status / Rohs Status: Compliant
• Other names: LMX9838SB

9.0 Application Diagrams
The following diagrams show two application examples for
LMX9838 implementations.
Figure 1 illustrates a cable replacement application, requiring
the physical UART interface to a data device like a sensor.
The LMX9838 just waits for an incoming link and forwards
data between the data device and the bluetooth link. PG6 acts
as active link indicator and is used to enable the data transfer
from the sensor. A 32.768khz crystal may be is used to reduce
power consumption while waiting for the incoming link.
FIGURE 2. Example For Host Controller Based Application With Audio Support
FIGURE 1. Example For A Cable Replacement Application
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Figure 2 shows an example for the connection to a host con-
troller, which can include a simple application to control the
LMX9838. The figure also includes the connection to a PCM
codec, in case the host controller application includes an au-
dio profile. Reset, OP4 and OP5 are controlled by the host for
full control of the LMX9838 status.
Please refer to Section 17.0 Application Notes for more de-
tailed descriptions for LMX9838 designs.
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