Lite-on TT 1260DA 1260 DiB7070 TV Tuner Mini PCI-e Card for HP Dell IBM Lenovo LG IBM Toshiba Sony Gateway

Lite-on Mini PCI-E TV Card 

DiBCom 7070 Series 

The DIB7070 components are targeted for markets such as TV reception on PCs, in-car DVB-T boxes, and other
portable multimedia TV receivers. The high level of integration and low cost have proven to be strong arguments in
replacing the bulky DVB-T frontends in set-top boxes and television sets. Even more convincing is the use of
the DIB7070 in solutions where there is a need for a dual antenna/tuner device. The goal being to support antenna
diversity when reception conditions are not optimal or to offer a PVR/Time-shifting functionality.

Among the members of this family, the DIB7070-P is dedicated to terrestrial digital TV reception on PCs or portable
multimedia devices. It allows for the implementation of highly integrated solutions, in simple mode or with a double
antenna (diversity mode), in order to ensure the best possible DVB-T indoor reception.
The DIB7070-P integrates the two functions of tuner and DVB-T demodulator, thus reducing the front-end to its simplest
form (Figure 4b). The tuner/demodulator coupling has a big impact on AGC optimization and prevents the duplication
of modules in both circuits. Moreover, the integration is especially efficient when a “Zero IF” (I & Q) tuner output is
used because the costly external RF SAW filter is replaced by a simple digital filter in the demodulator. A simple crystal
oscillator is therefore the only external component required.
Moreover, the fact that supplies are reduced to a single component also leans in favor of the DIB7070-P. Consumption
levels of approximately 400mW can be measured on these circuits in DVB-T mode, on both UHF and VHF(III) bands.