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(yè)數(shù)： 11/48頁(yè)
文件大?。?/td> 478K
代理商： L64734
L64733/L64734 Tuner and Satellite Receiver Chipset
11
INSEL
RF Port Input Select
When the INSEL signal is asserted, the L64733 is in
normal mode. When the INSEL signal is deasserted, the
L64733 is in Loop-Through mode. In this mode, the RFIN
signal is looped through to the RFOUT signal, and the
L64733 local oscillator is shut off.
Input
MODn, MODp Prescaler Modulus
The MOD differential signals form a PECL input that sets
the prescaler modulus. When the MODp signal is positive
with respect to the MODn signal, the prescaler modulus
is set to 32 (divide by 32). When the MODn signal is
positive with respect to the MODp signal, the prescaler
modulus is set to 33 (divide by 33).
Input
PLLINn, PLLINp
Phase Detector
The PLLIN differential signals form the phase detector
input and are connected to the L64734 PLLINp and
PLLINn output signals. See the L64734 PLLINp and
PLLINn descriptions in the
subsection entitled
“Synthesizer Control Interface”
on
page 19
.
Input
QDCn, QDCp Q-Channel DC Offset Correction
Connect a 0.1
μ
F (or larger) capacitor between the QDCp
and QDCn signals.
Input
Channel Data Signals
This section describes the channel data signals from the L64733 to the
L64734.
IOUTn, IOUTp I-Channel Baseband Data
The IOUT differential signals form the in-phase data
provided to the L64734.
Output
QOUTn, QOUTp
Q-Channel Baseband Data
The QOUT differential signals form the quadrature-phase
data provided to the L64734.
Output
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