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參數(shù)資料
| 型號： | IEEE1394 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | RELAY SSR SPST 60V 500MA 6SMT |
| 中文描述： | 電機及電子學工程師聯(lián)合會1394/Device灣的ATSC數(shù)字電視接收機 |
| 文件頁數(shù)： | 2/4頁 |
| 文件大?。?/td> | 440K |
| 代理商： | IEEE1394 |
This reference design demonstrates a
complete solution for capture,
demodulation and decoding of ATSC-
compliant DTV signals, and outputting
DTV transport streams over the high
speed IEEE 1394 bus using either
IEEE 1394 or Device Bay connections.
It uses just three core ICs:
the TDA8960 VSB demodulator/decoder
and two IEEE 1394 ICs - a physical layer
controller and A/V link layer controller.
SINGLE-CHIP ATSC
DEMODULATOR/DECODER
TDA8960 ATSC-compliant 8-VSB
demodulator and concatenated Trellis
(Viterbi)/Reed-Solomon decoder with
de-interleaver and de-randomizer
8-bit MPEG2 transport stream output
On-chip digital tuner AGC control
Integrated digital Square-Root
Raised-Cosine (half Nyquist) filter with
11.5 % roll-off
Feed forward adaptive equalizer
including a Decision Feedback Equalizer
(DFE)
Reed-Solomon decoder with internal
convolutional de-interleaving
De-randomizer based on ATSC standard
Rate 2/3 (rate 1/2 Ungerboeck-code-
based) Trellis (Viterbi) decoder
One of the key chips in the Device Bay module, the TDA8960
accepts 8-VSB modulated signals from the IF block of the tuner
front-end, or alternatively, the VSB IC AGC control output can
be applied directly to the tuner. Adaptive equalization using
the ATSC field sync (trained equalization) and/or the 8-VSB data
itself (blind equalization) is performed via a decision feedback
equalizer (DFE) following internal carrier recovery, half Nyquist
filtering and symbol timing recovery.
Following trellis decoding, the stream is de-interleaved with a
convolutional de-interleaver with on-chip memory. The ATSC-
compliant Reed-Solomon decoder has a length of 207 and can
correct up to 10 bytes. After decoding, the stream is de-randomized
and passed to a FIFO, preventing irregular gaps in the data; this then
outputs an 8-bit MPEG2 transport stream for de-multiplexing.
Philips Semiconductors controllers deliver a high-performance,
low-cost, proven IEEE 1394 system solution. Our Physical layer
controllers are fully interoperable with all 1394 link layer controllers
including PCI/OCHI compatible devices, while our Link layer
controllers offer support for MPEG2 and DV data streams, and
IEC61883. Our latest full duplex A/V link layer controller
(PDI1394L21) also supports processor based time stamp handling.
All Philips IEEE 1394 silicon offers bus holder circuits on the
Link/PHY interface, allowing effective node isolation - required in
almost all 1394-enabled equipment. A single capacitor in series with
each Link/PHY interface line provides economical yet highly
effective isolation.
COMPLETE REFERENCE DESIGN FOR A
IEEE 1394/DEVICE BAY ATSC DTV RECEIVER MODULE
PROVEN HIGH PERFORMANCE IEEE 1394 SILICON
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