Device identity and BiCMOS process
The TDA6650ATT/C3,518 is a consumer circuit fabricated in a BiCMOS process, housed in a PDSO38 package. BiCMOS combines bipolar and CMOS transistors on the same die — the bipolar side handles the RF front-end linearity while the CMOS logic manages the control interface and digital back-end, making this process choice deliberate for mixed-signal tuner applications.
