L64733 datasheet(14/48 Pages) LSI

14 / 48 page

L64733/L64734 Tuner and Satellite Receiver Chipset

• AGC Control

• Channel Data Output

• Microcontroller

• Synthesizer Control

• Tuner Control

The following signal descriptions are listed according to the major

interface groups.

Channel Interface

The Channel Interface is the input path to the L64734 satellite receiver.

IVIN and QVIN are the I and Q streams, respectively, from the satellite

tuner circuit. The CLK signal strobes in the data signals.

IBYPASS[5:0] I Channel Data

Input

The IBYPASS[5:0] signals form the digital I channel data

input bus, which supplies the I Stream to the L64734

when the ADC is bypassed. Bypass is controlled through

the setting of particular register bits in the L64734.

IVINn, IVINp

I Channel Data

Input

These differential signals form the analog received I

channel data input bus, which supplies the I stream to the

L64734.

QBYPASS[5:0]

Q Channel Data

Input

The QBYPASS[5:0] signals form the digital received

Q channel data input bus, which supplies the Q Stream

to the L64734 when the ADC is bypassed. Bypass is

controlled through the setting of particular register bits in

the L64734.

QVINn, QVINp

Q Channel Data

Input

The QVINn and QVINp differential signals form the

analog received Q channel data input bus, which supplies

the Q stream to the L64734.

L64733 Datasheet(PDF) 14 Page - LSI Computer Systems