These modules are controlled with I2C or SPI (selectable). They do not require any calibration.
Following pictures presents complete FM radio with '51 MCU and TBA820 audio amplifier built into beautiful wooden speaker. Source: http://as.elte-s.com/zrob/radio_tea5767.htm.
Modules with TEA5767, AVR microcontroller and headphone amplifier (TDA1308, 80 mW max), few pushbuttons, ISP and LCD connector cost about $16.
For AVR (avr-gcc/WinAVR) code check http://tomeko.net/projects/TEA5767_radio/.