NXP/Philips TDA182xx
TDA182xx are a family of tuner ICs from NXP/Philips. They appear to be in the process of being superceded by newer devices such as the NXP/Philips CX24109.
TDA18211HD
A tuner IC for DVB-T, targetted at STB.
TDA18212HN
The TDA18212HN is a Silicon Tuner designed for terrestrial and cable TV reception for digital signals. TDA18212HN/M (Master) is to be used as a stand-alone tuner IC or Master in dual tuner application. TDA18212HN/S (Slave) is only to be used as Slave Silicon Tuner in dual tuner application. The TDA18212HN supports all digital TV standards and delivers a LOW IF (LIF) signal to a channel demodulator for digital TV.
This tuner is used in TBS6280
TDA18251HD
A tuner IC.
TDA18252HN
A tuner IC targetted at STB.
TDA18271HD
The TDA18271HD is a Tuner IC by NXP designed mainly for terrestrial analog and digital TV reception and targetted at PC-TV. The TDA18271HD integrates the overall tuning function, including selectivity.
The TDA18271HD is compatible with all analog and digital TV standards and delivers a low IF signal to a demodulator (for analog TV) and/or channel decoder (for digital TV).
Fortunately documentation useful for writing a driver is available.
TDA18291
A tuner IC covering DVB-T and DVB-H.
TDA18292HN
A tuner IC covering DVB-T, DVB-H, DVB-SH, T-DMB and ISDB-T, targeted at low power applications such as notebooks, handheld devices, USB sticks.