A DSP/BIOS AIC23 Codec Device Driver for the TMS320DM642 EVM
Texas InstrumentsThis document describes the usage and design of a device driver for the AIC23 audio codec on the TMS320DM642 EVM. This device driver is written in conformance to the DSP/BIOS™ IOM device driver model and uses the generic TMS320C6x1x EDMA McASP driver to transfer samples to and from the serial port. For details on this generic driver see the application note A DSP/BIOS EDMA McASP Device D
LO Harmonic Effects on TRF3705 Sideband Suppression
Texas InstrumentsThe LO harmonic effects on I/Q errors and sideband suppression (SBS) in the RF modulator was analyzed in application report SLWA059. This application report further investigated LO harmonic effects when attempting to achieve an increased level of SBS performance. The selectivity requirements for the second- and third-order harmonics are outlined to aid in proper filter design. In the measurement
OMAP-L1x8 Complementary Products
Texas InstrumentsThis article has been contributed to the TI DaVinci™ and OMAP™ Developer Wiki. To see the most recently updated version or to contribute, visit this topic at:<p> <a href=http://tiexpressd
Tips for Using the ADS78xx Family of A/D Converters
Texas InstrumentsThe input to each of the members of the ADS Family (ADS7804/05/06/07/08/09/10/19 so far) is a resistor divider network converting the input signal to the range used internally. This resistor divider offers inherent overvoltage protection which will often simplify analog circuitry.
Applying I2C-Compatible Temperature Sensors in Systems With Slow Clock Edges (Rev. A)
Texas InstrumentsThis Application Note describes a method of interfacing a given microcontroller with a Texas Instruments digital temperature sensor.
Building a Superior Battery Monitor with the bq27x00
Texas InstrumentsThe bq27x00 is a complete gas gauge solution for lithium-ion and lithium-polymer batteries. The bq27x00 also has internal registers and control commands that enable the host to use it as a battery monitor. A battery gas gauge solution can be built one of two ways: ignore all algorithms built into the bq27x00 and use the primitive functions to build a fully customized solution or use some of the h
AN-29 IC Op Amp Beats FETs on Input Current (Rev. B)
Texas InstrumentsThis application note describes a monolithic operational amplifier which has input error currents in theorder of 100 pA over a −55°C to 125°C temperature range. Instead of FETs the circuit used bipolartransistors with current gains of 5000 so that offset voltage and drift are not degraded. A powerconsumption of 1 mW at low voltage is also featured.A number of novel circuits that make use
Continuous Monitor of the PLL Frequency With the DCC
Texas InstrumentsThe Dual Clock Compare (DCC) may be configured to provide autonomous real-time monitoring of the average frequency of a signal. This application report illustrates a configuration in which the DCC monitors the average PLL frequency. This comparison triggers an error when the average PLL falls out of a specified range. The accuracy window and the duration over which the frequency is averaged must
Setting the SVS Voltage Monitor Threshold
Texas InstrumentsTPS3808, TPS75005, TPS386000 Setting the SVS Voltage Monitor Threshold
PCB Design Req for Dist. Network for TI OMAP3630, AM37xx, and DM37xx MCUs
Texas InstrumentsThe purpose of a power distribution network (PDN) is to provide clean and reliable power to active devices in the system. The printed circuit board (PCB) is a critical component of the system-level PD
Set Up and Use TSC Timings
Texas InstrumentsThis application report helps users to understand set up and use the programming timings in the register-based touch screen controller (TSC) devices. It displays the timings functions and discusses the effect on the system interface traffic and on the system power consumption.
Active OR-ing Solution with LM74610 Smart Diode Controller (Rev. A)
Texas InstrumentsActive OR-ing Solution with LM74610 Smart Diode Controller
1-Wire Enumeration (Rev. B)
Texas Instrumentsapplication report describes the 1-Wire communication protocol, available TivaWare™ for C Series APIs for the 1-Wire module in Tiva™ C Series microcontrollers and an example enumeration al
How to Calculate TPS92630-Q1 Maximum Output Current for Automotive Exterior Ligh
Texas InstrumentsThis application report provides the method of calculating the maximum output current of the TPS92630-Q1 device in exterior-lighting automotive applications. The junction-to-ambient thermal resistance (RθJA) of the TPS92630-Q1 device is the key parameter when calculating the maximum output current of the TPS92630-Q1 device. This application report provides a method about how to measure the RθJA of
Debugging Tools and Techniques With IPC3.x
Texas InstrumentsThere are several useful tools and techniques that enable you to debug issues encountered when using software that leverages IPC3.x. With some guidance on the tools and techniques you can confidently debug the IPC and the remote core software.
This application report guides the customers on the tools and techniques for debugging with IPC3.x
