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參數資料
型號: L64781
廠商: LSI CORP
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP100
封裝: PLASTIC, QFP-100
文件頁數: 160/164頁
文件大小: 2003K
代理商: L64781
Demod Parameters Registers
5-25
CONSTELLATION
Constellation Type
D[1:0] R/W
In read mode, CONSTELLATION provides the last value
received by the channel, using the TPS signalling
information.
In write mode, CONSTELLATION stores the next
constellation-type value for the system to use, after
applying it.
The initial value of CONSTELLATION is 10.
5.5 Demod Parameters Registers
The demod
parameter registers contain conguration information. The
readings from these registers indicate the current parameter value.
These
parameter registers are congurable only through the
microprocessor.
5.5.1 Demod Parameters Register 1 (0x07)
This is an 8-bit wide, read/write register.
1
Set this bit to 1.
D7
0
Set these bits to 0.
D[6:5]
AFC_STALL
AFC Loop Updating Freeze
D4 R/W
This bit selects whether the AFC loop works or freezes.
If the loop works, the integrator inside the chip
updates its value from time to time.
CONSTELLATION[1:0]
Denition
0
QPSK
0
1
16-QAM
1
0
64-QAM
1
Reserved
D7
D6
D5
D4
D3
D2
D0
1
0
AFC_STALL
AFC_POL
AFC_SENSITIVITY
l64781.book Page 25 Friday, January 19, 2001 1:28 PM
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相關代理商/技術參數
參數描述
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
L64801GM-20 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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