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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: 23/164頁
文件大小: 2003K
代理商: L64781
Demod Parameters Registers
5-49
where:
B is the channel bandwidth = {6, 7, 8 MHz}.
ε is the difference between the frequency of the XO
and the theoretical frequency in ppm.
Example:
For example, Equation 5.7, if B = 6 MHz, and the
frequency of the crystal is = 18.2912 = 128/7 + 300 ppm,
then:
Equation 5.7
For xed XO and variable IF mode, the following applies:
In variable IF mode (Figure 5.6), the signal from the
UHF band is not converted to the theoretical IF, but
rather to IF B/8.
Figure 5.6
Fixed XO and Variable IF
DDFS _OFFSET
2
16
300 10
6
10
6
610
6
------------------------------------------------------
0
x 3FFD
==
8 MHz
7 MHz
6 MHz
Theoretical IF = fs/4
8 MHz
7 MHz
6 MHz
Frequency Error
l64781.book Page 49 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
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