參數(shù)資料
型號(hào): L64734
廠商: LSI CORP
元件分類: 消費(fèi)家電
英文描述: Tuner and Satellite Receiver Chipset
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP100
封裝: PLASTIC, QFP-100
文件頁數(shù): 21/48頁
文件大?。?/td> 478K
代理商: L64734
L64733/L64734 Tuner and Satellite Receiver Chipset
21
Tuner Control Interface
The Tuner Control interface contains signals that control the L64733
Tuner IC.
FLCLK
Filter Control Clock
FLCLK is the output of a programmable integer value
divider clocked by the demodulator sampling clock,
PCLK. The division ratio can be programmed with
register bits. The frequency of FLCLK multiplied by 16 is
the 3 dB cutoff of the programmable low-pass filters on
the L64733.
Output
INSEL
RF Input Select
When INSEL is asserted, the L64733 tuner selects the
normal mode. When INSEL is deasserted, the L64733
selects the Loop-Through mode.
Output
Typical Operating Circuit
Figure 7
is a diagram of a typical operating circuit for the chipset,
including external components. Not all external components are shown.
See the L64733/34 Evaluation Board User’s Guide for complete
schematic details.
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