There is also an accompanying case included with this set. There is only one mounting type recommended for the product, which is Surface Mount. There is a 24-LSSOP (0.220, 5.60mm Width) case embedded in it as well. A device is packaged by 24-VSOP.
AK4121VF Features
With 24-LSSOP (0.220, 5.60mm Width) channels
AK4121VF Applications
There are a lot of AKM Semiconductor Inc. AK4121VF Audio Special Purpose applications.