ES9822PRO datasheet(10/126 Pages) ESS

10 / 126 page

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ES9822 PRO Product Datasheet

ESS TECHNOLOGY, INC. 109 Bonaventura Drive, San Jose, CA 95134, USA Tel (408) 643-8800 WWW.ESSTECH.COM

Audio Signal Processor (ASP) 4

The ES9822 PRO includes 2 stereo audio signal processors (ASP) which can be used to implement both custom filter coefficients as well as custom

filter architectures. This feature may also be used to implement a programmable equalizer (PEQ) and other applications.

See Digital Signal Path diagram for location in the data path.

ASP Registers:

•

Registers 35-58

Clip Detection5

If the peak level of the ES9822 PRO device’s input audio stream rises above the programmed ADC#_CLIP_LEVEL value, the corresponding clip flag

will be set. The clip flag will stay set until it is cleared with INTERRUPT_CLEAR_CH#_CLIP_DETECTION. Any of the GPIO pins can be configured

to output the state of any of the clip flags if INTERRUPT_MASK_CH#_CLIP_ DETECTION is set for the corresponding channel.

Clipping Level Registers:

•

Clipping Interrupt Clear Registers:

•

Clipping Interrupt Mask Registers

•

The GPIO READBACK register values 4’d4 – 4’d7 output the clip interrupt state for CH1 & CH2, respectively. The corresponding channel bit in

For help with designing with the ASP, please reference the ASP GUIDE Application Note. Available from your local FAE upon request.

For further information on using Clip Detection, please reference the Clip Detector Configuration Application Note. Available from your local FAE

upon request

ES9822PRO Datasheet(PDF) 10 Page - ESS Technology,Inc