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Dual Cable Demodulator
The TDA10025HN is a Dual Cable Downstream Processor.
The Cable Downstream Processor (CDP) implements the physical interfaces and protocols required to provide the highest quality services of an in-band DOCSIS, EuroDOCSIS, DVB and OpenCable Set-Top Box (STB). The downstream signals are digitized by 12-bit ADC and passed to the Demod and Forward Error Correction (FEC) blocks, which do all the cable physical layer processing. This processing includes demodulating and Annex A (Europe), Annex B (US) or Annex C (Japan) FEC for the in-band data.
sot619-1_3d
Product Details
Features
- QPSK, 16 QAM, 32 QAM, 64 QAM, 128 QAM and 256 QAM Demodulator
- ITU-T J83 Annex A, B and C FEC
- Transport Stream Multiplex Frame (TSMF) module for Annex C compliance
- Time interleaved parallel mode or serial mode for Transport Stream (TS) interface
- On chip PLL for crystal frequency multiplication (16 MHz external)
- Reuse of the tuner clock, saving one crystal
- Embedded 12-bit ADC
- 3.3 V and 1.2 V power supplies
- Low power < 235 mW for dual stream operation
- Small size package
- Low cost Bill of Material
Target Applications
- Digital cable TV STB
- Cable gateways
- Docsis 3.0 Cable modems
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Documentation
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Design Resources