L64733C LSI Logic Corporation, L64733C Datasheet - Page 10

• Manufacturer Part Number: L64733C
• Description: Tuner And Satellite Receiver Chipset Data Sheet 2/01
• Manufacturer: LSI Logic Corporation

Oscillator Signals
Channel Data Signals
10
RFINp, RFINn RF Input
RFOUT
The L64733C has two internal oscillators, a crystal oscillator and a tank
oscillator.
CFLT
TANKp, TANKn
VRLO
XTLp, XTLn
XTLOUT
The following signals are the channel data signals from the L64733C to
the L64734.
IOUTp, IOUTn I Channel Baseband Data
L64733C/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
Connect the CFLT pin as shown in Figure 7 on page 23.
Oscillator Tank Port
Connect the TANKp and TANKn pins as shown in
Figure 7 on page 23.
Local Oscillator Regulator Bypass
Connect the VRLO pin as shown in Figure 7 on page 23.
Crystal Oscillator Port
Connect the XTLp and XTLn pins as shown in Figure 7
on page 23.
Crystal Out
This signal provides a buffered clock reference frequency
for driving the L64734 XOIN pin.
The IOUT differential signals form the in-phase data
provided to the L64734.
F video connector and the RFINn
resistor and 100 pF
output that is active when
Bidirectional
Bidirectional
input.
Output
Output
Output
Input
Input
Input