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LMX9838SBX Datasheet(PDF) 6 Page - Texas Instruments |
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LMX9838SBX Datasheet(HTML) 6 Page - Texas Instruments |
6 / 38 page SCLK SFS STD SRD Audio Codec Host Controller LMX9838 PG6 PG7 OP3 330: 330: 1 k: CTS RTS RXD TXD RESET# OP5 OP4 RTS CTS TXD RXD GPIO1 GPIO2 GPIO3 LMX9838 Data device with Sensor RTS CTS TXD RXD EN CTS RTS RXD TXD PG6 RESET# 22 pF 1 k: 1 k: PG7 OP3 OP4 OP5 22 pF 32.768 KHZ (OPTIONAL) 330: LMX9838 SNOSAZ9D – JULY 2007 – REVISED APRIL 2013 www.ti.com Application Diagrams The following diagrams show two application examples for LMX9838 implementations. Figure 2 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 3 shows an example for the connection to a host controller, 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 audio profile. Reset, OP4 and OP5 are controlled by the host for full control of the LMX9838 status. Please refer to Application Notes for more detailed descriptions for LMX9838 designs. Figure 2. Example For A Cable Replacement Application Figure 3. Example For Host Controller Based Application With Audio Support 6 Submit Documentation Feedback Copyright © 2007–2013, Texas Instruments Incorporated Product Folder Links: LMX9838 |
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