L64734 datasheet(21/48 Pages) LSI

Nome de Peças	L64734

Descrição Electrónicos	Tuner and Satellite Receiver Chipset

PDF	48 Pages

Scroll/Zoom	100%

Fabricante Electrônico	LSI [LSI Computer Systems]

Página de início	http://www.lsicsi.com

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21 / 48 page

L64733/L64734 Tuner and Satellite Receiver Chipset

Tuner Control Interface

The Tuner Control interface contains signals that control the L64733

Tuner IC.

FLCLK

Filter Control Clock

Output

FLCLK is the output of a programmable integer value

divider clocked by the demodulator sampling clock,

PCLK. The division ratio can be programmed with

the 3 dB cutoff of the programmable low-pass ﬁlters on

the L64733.

INSEL

RF Input Select

Output

When INSEL is asserted, the L64733 tuner selects the

normal mode. When INSEL is deasserted, the L64733

selects the Loop-Through mode.

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.

L64734 Folha de dados(PDF) 21 Page - LSI Computer Systems