Tuner (Tm101, Tm102) - Samsung DSB-S300G Service Manual

Circuit Operating Descriptions

13-2 Tuner (TM101, TM102)

13-2-1 Function
I t 's consists of Tuning block and QAM-Demod block.
Function of tuning block tunes the channel from 51 to 858MHz input RF
signal and makes the IF (36.125MHz) which is sent QAM-Demod block.
Function of QAM-Demod block makes the MPEG-2 TS (Transport Stream) by QAM
demodulation. TS is consists of D at a [ 0: 7] , Sync, Er r or , Val i d and Cl ock signals.
Tuner is controlled by I2C.
13-2-2 Block Diagram
fig. 13-2
13-2 Samsung Electronics