Audio CODECs

Audio CODECs - Application Notes

AN-1836: AD1836-21161: Interfacing the ADSP-21161 SIMD SHARC DSP to the AD1836 (24-bit/96 kHz) Multichannel Codec (pdf, 1516 kB)
AN-1007: Using the ADAU1761 in DSP Bypass Mode to Emulate an ADAU1361 (pdf, 115 kB)
AN-1006: Using the EVAL-ADUSB2EBZ (pdf, 349 kB)
AN-910: 0: Recovering the DIR PLL Operation on the ADAV801 and ADAV803 (pdf, 111 kB)
AN-620: 0: Using the AD1836 and AD1953 for a 4-In/9-Out Analog System with DSP (pdf, 66 kB)
AN-404: 04: Considerations for Mixed Signal Circuit Board Design (pdf, 86 kB)
(How to Design a PCB Layout/Assembly Compatible with the AD1845 and CS4231 Codecs)
AN-349: Keys to Longer Life for CMOS (pdf, 89 kB)
Here's How CMOS Can be Protected Against Abuse
AN-346: Understanding Interference Type Noise (pdf, 569 kB)
How to Deal with Noise Without Black Magic. There are Rational Explanations for -and Solutions to-Noise Performance.
AN-342: Analog Signal-Handling for High Speed and Accuracy. (pdf, 468 kB)
Signal handling techniques for optimizing DAC and ADC performance.
AN-327: DAC ICs: How Many Bits Is Enough? (pdf, 345 kB)
Digital audio playback DACs are available in a variety of different architectures--each with it's own performance tradeoffs.
AN-283: Sigma-Delta ADCs and DACs (pdf, 1699 kB)
Overview of Sigma-Delta Concepts: Oversampling, Noise Shaping Using the Sigma-Delta Modulator, Digital Filtering and Decimation.
AN-214: Ground Rules for High Speed Circuits (pdf, 356 kB)
Layout and Wiring Are Critical in Video Converter Circuits.
AN-211: The Alexander Current-Feedback Audio Power Amplifier (pdf, 1154 kB)
EE-194: Connecting the AD1836A Evaluation Board to the ADSP-21161N SHARC EZ-KIT Lite (pdf, 259 kB)
- EE-194 Software Code (zip, 39 kB)
EE-193: Interfacing the ADSP-BF535 Blackfin Processor to the AD73322L Codec (pdf, 901 kB)
- EE-193 Software Code (zip, 209 kB)
EE-96: Interfacing Two AD73311 Codecs to the ADSP-218x (pdf, 203 kB)
EE-59: Codec Soundbytes (pdf, 29 kB)
Discusses Crystal Requirements for Clock AD1819B, AD1881A, AD1885, AD1886A and AD1887 AC'97 Codecs.
EE-54: How to Use AD1819A Variable Sample Rate Support (pdf, 77 kB)
The AD1819A variable sample rate support obviates the need for digital re-sampling imposed by Specification AC '97 on DC '97 Controllers (and without any loss in audio performance.)
EE-26: AD184x Sigma Delta Converters: How well do they work with DC inputs? (pdf, 8 kB)
EE-25: AD1849K Jitter Requirements and Input Signal Coupling (pdf, 9 kB)
Discusses AD1949K jitter requirements when using an external clock source as well as AC vs. DC couping of the input signal.

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Audio CODECs - Application Notes

Audio CODECs

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