TRF372017 Noise Analysis (Rev. A)
Texas InstrumentsThis report provides information about the experimental set-up and measurements carried out with the TRF372017 evaluation module (TRF370217EVM) to determine the output noise at the RF port of Texas Instruments' TRF372017 integrated IQ modulator device. The significance of using low-pass baseband and RF bandpass filters along with the modulator noise floor estimation obtained from the output noise
U-140 Average Current Mode Control of Switching Power Supplies
Texas InstrumentsCurrent-mode control as usually implemented in switching power supplies actually senses and controls peak inductor current. This process causes many serious problems including poor noise immunity a need for slope compensation and peak-to-average current errors that the inherently low current-loop gain cannot correct. Average current-mode control eliminates these problems and may be used effec
Phase Noise Performance and Loop Bandwidth Optimization of CDCE62005
Texas InstrumentsCDCE62005 Phase Noise Performance and Loop Bandwidth Optimization of CDCE62005
PGA900 DAC Output Stability Application Note
Texas InstrumentsCapacitive load drive is one of the most common causes of operational amplifier stability issues. The load capacitance CL interacts with the open-loop output impedance of the amplifier ZO by adding a single or double pole in the open-loop response. The additional pole or poles degrades the circuit phase margin resulting in transient overshoot and ringing ac gain peaking
Understanding Data Converters
Texas InstrumentsThis document discusses data converter specifications as defined on a manufacturing data sheet and considers some aspects of designing with data conversion products. The sources of error that change the device characteristics from an ideal function to reality are shown with illustration of their characteristic curves. A brief description of the TLC04 anti-aliasing Butterworth filter is provided.
DALI Communication on the AC LED Lighting & Communications Developer's Kit
Texas InstrumentsDALI Communication on the AC LED Lighting & Communications Developer's Kit ZHCA513
Supporting External DMA Activity to Internal RAM for TMS320C5x
Texas InstrumentsThis document discusses how to use the DMA capability of TMS320C5x devices with the thin-quad-flat package. The problem is that when moving to the small outline and footprint of the thin-quad-flat package (TQFP) for TMS320C5x devices some functionality is removed to reduce pin count. This move from the 132-pin quad-flat package (PQ package) to the 100-pin TQFP (PZ package) removes two functiona
Thermistor Coefficient Calculator for TI Advanced Fuel Gauges
Texas InstrumentsThermistor Coefficient Calculator for TI Advanced Fuel Gauges
Thermo-Electric Cooler Control Using a TMS320F2812 DSP & DRV592 Power Amplifier
Texas InstrumentsThis application report presents a thermoelectric cooler system consisting of a Texas Instruments TMS320F2812 digital signal processor (DSP) and DRV592 power amplifier. The DSP implements a digital proportional-integral-derivative feedback controller using an integrated 12-bit analog-to-digital converter to read the thermistor, and direct output of pulse-width-modulated waveforms to the H-bridge DRV592 power amplifier. The system presented provides up to 6.1 watts of heating or cooling to the laser mount, although the DRV592 amplifier is actually capable of delivering up to 15 watts when configured appropriately. The closed-loop TEC system is seen to achieve ±0.0006°C temperature accuracy, depending on the needed operating temperature range, with a step response settling time of 14 to 16 seconds. A complete description of the experimental system, along with software and software operating instructions, are provided.
TMS320C6000 System Clock Circuit Example (Rev. A)
Texas InstrumentsThis document describes how to provide the Texas Instruments TMS320C6000™ DSP with a system clock. All of the clocks internal to the C6000™ are generated from a single source through the CLKIN pin. This source clock for the device is an external signal that depending on the clock mode either drives the on-chip Phase-Locked Loop (PLL) circuit which multiplies the source clock in freq
TMS320DM6467 Universal Serial Bus Upstream Device Compliance Testing
Texas InstrumentsThis application report describes the TMS320DM6467 electrical compliance of a high-speed (HS) universal serial bus (USB) operation conforming to the USB 2.0 specification. The non-OTG controller supports the USB 2.0 device-mode operation at HS and FS full-speed (FS) and the USB 2.0 host-mode operation at HS FS and low-speed (LS).
TPS65270 Loop Compensation Design Consideration
Texas InstrumentsTPS65270 Loop Compensation Design Consideration
Designing a High-Efficiency WCDMA BTS using GC5322 DPD System Solution
Texas InstrumentsDesigning a High-Efficiency WCDMA BTS using GC5322 DPD System Solution
A 3 Gbps SDI Connectivity Solution Supporting Uncompressed 1080p60 Video
Texas InstrumentsA 3 Gbps SDI Connectivity Solution Supporting Uncompressed 1080p60 Video
U-503 Using the bq3285/7E in a Green or Portable Environment
Texas InstrumentsUsing the bq3285/7E in a Green or Portable Environment Using the UCC3809 Primary Side Controller and the UCC3956 Battery Charger Controller
Ultrasonic Sensing Basics for Liquid Level Sensing, Flow Sensing, and Fluid Iden (Rev. A)
Texas InstrumentsUltrasonic Sensing Basics for Liquid Level Sensing, Flow Sensing, and Fluid Identification
DLP? Series-310 DMD and System Mounting Concepts
Texas InstrumentsDLP4500FQD DLP? Series-310 DMD and System Mounting Concepts
Introduction to TMS320C6000 DSP Optimization
Texas InstrumentsThe TMS320C6000™ Digital Signal Processors (DSPs) have many architectural advantages that make them ideal for computation-intensive real-time applications. However to fully leverage the architectural features that C6000™ processors offer code optimization may be required. First this document reviews five key concepts in understanding the C6000 DSP architecture and optimization. Then
