 |
|
The on-chip IF amplifier allows the use of cost-effective can tuners. Component count and bill-of-material of the total front-end system are reduced, as compared to the standard system partitioning. The DRX 3973D and the DRX 3977D can be applied as demodulators for DVB-T applications or – in combination with the DRX 3960A – in a hybrid front-end for combined analog and DVB-T reception. The combination DRX 3973D or DRX 3977D and DRX 3960A enables an economic solution for hybrid reception, using only one tuner and one 8-MHz SAW filter. This concept allows the end-user to receive analog or DVB-T broadcasts, depending on the local spectrum allocation.
DVB-T Front-End Block DiagramFigure 2 shows a block diagram of a typical DVB-T front-end. The DRX 3973D is used to control a tuner via the optional RF-AGC signal. If the tuner has an integrated RF-AGC, this signal line is not required. The 4 MHz clock reference output of the tuner is used as clock input for the DRX 3973D, thus saving an external crystal. Via the pre-SAW sense input, the RF signal level can be monitored for optimal RF-AGC control and/or RF-level measurement. For further details and availability information please contact .
Block diagram of a typical DVB-T front-end based on the DRX 3973D
|
|
|
DescriptionEconomy front-end solution for DVB-T and analog TV is realized by the hybrid front-end reference design, using a single tuner to receive DVB-T and analog TV broadcast. This reference design suits to IDTV, tuner module, DVD-R, PVR, and PC-TV applications. The output signals are CVBS and SIF signals for analog TV reception and MPEG-TS for DVB-T.
|
|
|
DescriptionAddressing the fragmented DVB-T market requirements and conditions, the mainstream hybrid IDTV-for-DVB-T solution is offering a field-proven DVB-T platform based on a broad DVB-T reception expertise. By the modular approach, global markets can be addressed, including HD-ready, DVB-T- and ATSC markets. Main Features
|
|
Reception of hybrid broadcast signals and connectivity to all HD-ready analog and digital signals
|
|
|
|
Field-proven DVB-T (COFDM) performance, complies to D-book, E-book and Nordig Unified basic TV standards
|
|
|
|
Multistandard analog television, including VBI Services
|
|
|
|
Excellent DVB-T reception by DRX 397xD DVB-T generation
|
|
|
|
Analog input signals from DVD(R), VCR, camcorder, (HD-)STB, PC (SXGA) CVBS, YPrPb, Y/C, RGB: 480i, 480p, 720p, 1080i
|
|
|
|
HDMI interface: including 720p and 1080i
|
|
|
|
Complete set of scalable improvements for picture- and sound quality
|
|
|
|
Advanced motion-adaptive de-interlacing
|
|
|
|
Picture quality improvements, including 2-D/3-D comb filter, motion-adaptive noise reduction, contrast/color/sharpness enhancement
|
|
|
|
State of the art sound featuring: Lip Sync, SRS TrueSurround XT, Virtual Dolby, BBE
|
|
|
|
Display resolution up to WXGA (1366x768)
|
|
|
|
Picture-in-picture and picture-and-picture use-cases for all input sources; e.g. analog input signal combined with DVB-T (based on one color decoder
|
|
|
|
Field-proven TV software application and related DTV functions and services, including: MHEG5, Common Interface (CI); (7-days-) EPG; Over-the-Air-Download (OAD); DVB subtitle and TXT; program information banner and signal strength indicator
|
|
|
|
Full-function TV OSD; customizable and bitmap look and feel
|
|
|
|
Option for single-tuner hybrid DVB-T front-end reference design, based on DRX 396xA analog demodulator and DRX 397xD COFD demodulator
|
|
|
|
|
|
|
|
|
|
|
|
|
