Digitally Controlled 2 Audio Mixer SSM2163 - Analog Devices
OUTL Left Audio Output. 15 V OUTR Right Audio Output. 16 V IN8 Audio Signal Input 8. 17 AGND Analog Ground. 18 V IN6 Audio Signal Input 6. 19 NC (Shield) Shield Pin. Should be tied to AGND to minimize crosstalk. 20 V IN4 Audio Signal Input 4. 21 NC (Shield) Shield Pin. Should be tied to AGND to minimize crosstalk. 22 V IN2 Audio Signal Input 2.