A 6-page detailed document containing specific internal structures and application circuits can be found on Scribd .
for consumer audio equipment, famously used in systems like the Sony HCD-GRX90 Key Specifications & Features Package Type: ZIP-22 (Zig-zag In-line Package with 22 pins). Amplifier Class: Part of the
The STK411-210E is a (package code: SIP-12). The pinout is as follows: