Found 4 alternatives for PMA7107XUMA1 by Infineon Technologies. Rf Transceiver Ics — 38-TFSOP (0.173", 4.40mm Width).
8-BIT FLASH MCU, 8051 CPU, 12MHZ
IC RF TXRX+MCU ISM<1GHZ 38TFSOP
ASK/FSK 315 MHZ WIRELESS TRANSVR