 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| PRODUCT INFORMATION DRX 3975D Sept/2004 DRX 3975D Fourth-Generation COFDM Demodulator The DRX 3975D is a fourth-generation COFDM demodulator that offers today's highest level of front-end integration resulting in ultimate DVB-T digital reception according to ETS 300 744. The IC applies cutting-edge digital filtering techniques in combination with a high-performance A/D converter and PLL configuration leading to superior performance figures, in the presence of digital or analog adjacent channels. Progressive digital algorithms in the channel estimator of the DRX 3975D results in exceptional performance in multipath and dynamic Echo conditions. This is important for single-frequency networks and indoor reception. The state-of-the-art noise cruncher suppresses noise disturbances from sources such as cars, phones, and other electrical appliances. Features Highest level of functional integration and front-end flexibility: - Single 8-MHz SAW filter operation - AGC options: RF-AGC; IF-AGC - Flexible clock reference options Exceptional digital reception performance: - High-quality PLL allows real reuse of 4-MHz tuner clock reference - Superior digital and adjacent channel performance (> -40 dB QEF) - Impulsive noise cruncher - Pre-SAW sense input for optimal RFAGC setting and RF-level measurement Input IF frequency can range up to 44 MHz in order to accept new tuner topologies with new defined IF Integrated microprocessor to perform autonomous detection and operation of all possible DVB-T modes, without interaction of the host processor Fully automatic and fast signal acquisition: UHF and VHF band-scan in <10 s. Meets the relevant international DVB-T performance requirements standards: Nordig Unified, DTG, EICTA, and others. Comfortable software drivers for integration of tuner with the DRX 3975D Secondary serial interface for tuner control 5-V tolerant AGC output Configurable parallel or serial MPEG-TS output PLQFP64 package IEEE 1149.1 boundary scan Applications IDTV / hybrid TV receivers Set-top boxes PVR / PDR Network interface modules (NIM) PC-TV cards PRODUCT INFORMATION DRX 3975D Front-End Applications DVB-T Front-End The DRX 3975D can be applied as demodulators for DVB-T applications, or in combination with the DRX 3960A in a hybrid frontend for combined analog and DVB-T reception. The combination of DRX 3975D 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. It perfectly fits to the MDE 9500B hybrid video decoder family. Tuner SIF Sept/2004 8-MHz SAW DRX 3975D MPEG-TS to MPEG Decoder Hybrid Front-End Tuner SIF DRX 3960A 8-MHz SAW SIF to Stereo Decoder CVBS to Video Decoder DRX 3975D MPEG-TS to MPEG Decoder Fig. 1: Front-end application examples DVB-T Front-End Application Figure 2 shows a block diagram of a typical DVB-T front-end using the DRX 3975D controlling 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 3975D, thus saving an external crystal for the DRX 3975D. Via the pre-SAW sense input, the RF signal level can be monitored for optimal RF-AGC setting and/or RF-level measurement. For further details and availability information please contact DigitalTV@micronas.com. Optional Closed-Loop RF AGC IF AGC 48...860 MHz Differential COFDM 8-MHz SAW @36 MHz @ 36 MHz Tracking Filter DRX 3975D MPEG2 TS PLL Serial Control Pre-SAW Sense Input RF AGC (optional) 4-MHz Clock Signal Serial Control Fig. 2: Block diagram of a typical DVB-T front-end based on the DRX 3975D All information and data contained in this product information are without any commitment, are not to be considered as an offer for conclusion of a contract, nor shall they be construed as to create any liability. Product or development sample availability and delivery are exclusively subject to our respective order confirmation form. By this publication, Micronas GmbH does not assume responsibility for patent infringements or other rights of third parties which may result from its use. No part of this publication may be reproduced, photocopied, stored on a retrieval system, or transmitted without the express written consent of Micronas GmbH. Edition Sept. 15, 2004; Order No. 6251-659-1PI Micronas GmbH Hans-Bunte-Strasse 19 D-79108 Freiburg (Germany) P.O. Box 840 D-79008 Freiburg (Germany) Tel. +49-761-517-0 Fax +49-761-517-2174 E-mail: docservice@micronas.com www.micronas.com |
Price & Availability of DRX3975D
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |