This item comes with a case that goes with it. The mounting type that is recommended is Surface Mount. The 56-UFBGA, WLCSP case is embedded in it. This device has a 4 channel configuration. For your reference, here are some Audio Processor functions. There is the possibility of applying the device in Communication Systems. Packaged by 56-WLCSP (3.05x3.05), the device is available for purchase.
ZL38052UGB2 Features
With 56-UFBGA, WLCSP channels
ZL38052UGB2 Applications
There are a lot of Microchip Technology ZL38052UGB2 Audio Special Purpose applications.