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參數(shù)資料
| 型號： | L64780 |
| 廠商： | LSI Corporation |
| 英文描述： | DVB-T COFDM Demodulator(對地數(shù)字視頻廣播 正交編碼頻率分割多路處理解調(diào)器) |
| 中文描述： | 的DVB - T COFDM解調(diào)器（對地數(shù)字視頻廣播正交編碼頻率分割多路處理解調(diào)器） |
| 文件頁數(shù)： | 74/126頁 |
| 文件大?。?/td> | 953K |
| 代理商： | L64780 |
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4-22
Register Descriptions
When in Normal mode, the L64780 receives a real signal
in the intermediate frequency (about 4.5 MHz), and the
R2C block performs the baseband conversion. In this
mode, the DDFS block receives a complex baseband
signal directly from the R2C block and takes the
DDFS_XIN, DDFS_YIN, and DDFS_DVIN signals and
the symbol synchronization DDFS_STARTIN signal from
the Timing synchronization (TIM) block.
In Down-Converter Off-Chip mode, the baseband
conversion is done by the tuner, but the COFDM symbol
synchronization signal is still provided by the TIM block.
In this mode, the DDFS block takes the DDFS_XOFF,
DDFS_YOFF, and DDFS_DVOFF signals from the off-
chip interface, whereas the symbol synchronization
DDFS_STARTIN signal comes from the TIM block (see
Section 3.2.1, “Access to Timing and DDFS Blocks,”
page 3-10
, for the DDFS_XOFF, DDFS_YOFF, and
DDFS_DVOFF signals mapping into the MUXIN bus).
When in Test mode, the DDFS block receives the
baseband complex data and the symbol synchronization
from the off-chip interface. In this mode, the
DDFS_XOFF, DDFS_YOFF, DDFS_DVOFF, and
DDFS_STARTOFF signals come from the off-chip
interface. (See
Section 3.2.1, “Access to Timing and
DDFS Blocks,” page 3-10
, for the DDFS_XOFF,
DDFS_YOFF, and DDFS_DVOFF and DDFS_STARTOFF
signals mapping into the MUXIN bus.)
In Disable mode, only the DDFS_XIN, DDFS_YIN,
DDFS_DVIN, and DDFS_STARTIN signals are used; no
frequency shift is applied to the incoming complex data,
but the data processing time latency must be preserved.
ADCON
ADC Selector
This bit determines if the L64780 uses the 8-bit on-chip
(1), or the external 10-bit (0) ADC. The initial condition for
the ADCON is 0, the external 10-bit ADC.
R/W 0
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L64781 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single-Chip COFDM Receiver |
| L64782 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:L64782 Single-Chip COFDM Receiver |
| L6480 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:The L6480, realized in analog mixed signal technology, is an advanced fully integrated solution suitable for driving two-phase bipolar stepper motors with microstepping. |
| L64801GC-20 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:32-Bit Microprocessor |
| L64801GC-25 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:32-Bit Microprocessor |
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