L64733 LSI Logic Corporation, L64733 Datasheet - Page 9
L64733
Manufacturer Part Number
L64733
Description
Tuner/receiver Chipset
Manufacturer
LSI Logic Corporation
Datasheet
1.L64733.pdf
(48 pages)
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RF Signals
Oscillator Signals
The following signal descriptions are listed according to the major
interface groups. Within each group, the signals are described in
alphabetic order.
The L64733 can accept an RF input signal and loop it through to RFOUT.
This is controlled by an on-chip RF switch.
RFINn, RFINp RF Input
RFOUT
The L64733 has two internal oscillators: a crystal oscillator and a tank
oscillator.
CFLT
TANKn, TANKp
VRLO
XTLn, XTLp
L64733/L64734 Tuner and Satellite Receiver Chipset
The RFIN differential signals form the 75
Connect the RFINp signal through a series 100 pF
capacitor to a 75
signal through a series 75
capacitor to ground.
RF Output
The RFOUT signal is a 75
the INSEL input is deasserted. When active, the signal at
RFOUT is a copy of the RFIN signal.
Bias Voltage Bypass
See
connect the CFLT pin.
Oscillator Tank Port
See
connect the TANKp and TANKn pins.
Local Oscillator Regulator Bypass
See
connect the VRLO pin.
Crystal Oscillator Port
Connect the XTLp and XTLn pins as shown in
on
page
Figure 7
Figure 7
Figure 7
22.
on
on
on
page 22
page 22
page 22
F video connector and the RFINn
for information on how to
for information on how to
for information on how to
resistor and 100 pF
output that is active when
Bidirectional
Bidirectional
input.
Figure 7
Output
Input
Input
Input
9
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