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Low-cost video decoder with 2D2L comb filter for NTSC digital TVs
- Source :
- IEEE Transactions on Consumer Electronics. 51:694-698
- Publication Year :
- 2005
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2005.
-
Abstract
- A low-cost video decoder for NTSC signals is described in this paper. The proposed NTSC video decoder design employs a 2D2L comb filter, and a DDFS (direct digital frequency synthesizer)-based DCO (digital control oscillator) based on a trigonometric quadruple angle formula in a digital PLL to track and lock the demodulation clocks. The complexity of the digital video decoder is consequently drastically reduced. The overall cost of the proposed design is 7.22 mm/sup 2/ (26 K gates). The maximum power dissipation is 109.2 mW at the highest clock rate which is 21.48 MHz.
- Subjects :
- business.industry
Computer science
Video decoder
Digital video
Clock rate
Synchronization
Phase-locked loop
NTSC
Direct digital synthesizer
Media Technology
Electronic engineering
Demodulation
Digital control
Digital television
Electrical and Electronic Engineering
business
Comb filter
Digital filter
Decoding methods
Composite video
Subjects
Details
- ISSN :
- 00983063
- Volume :
- 51
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Consumer Electronics
- Accession number :
- edsair.doi.dedup.....c52703ef5f42d4e5403398e427e9844e