SAF4000EL/101Z53CK Overview
Moreover, the book has an appendix that contains a case study. Family Audio ICs is what we're talking about.
SAF4000EL/101Z53CK Features

SAF4000EL/101Z53CK Applications
There are a lot of NXP
SAF4000EL/101Z53CK Audio Special Purpose applications.

High-End Audio/Sound Card for PC
Replacement of DIR1703
Other Applications Requiring S/PDIF Receiver
Audio Differential Line Drivers
Audio Mix Consoles
Distribution Amplifiers
Graphic and P arametric Equalizers
Dynamic Range Processors
Digital Effects Processors
Telecom Systems

Factory Pack Quantity:Factory Pack Quantity	630
Part # Aliases	935419185557
Manufacturer	NXP
Brand	NXP Semiconductors
RoHS	Details
Packaging	Tray
Subcategory	Audio ICs
Product Type	Audio DSPs
Product Category	Audio DSPs