L64733 LSI Logic Corporation, L64733 Datasheet - Page 6

• Manufacturer Part Number: L64733
• Description: Tuner/receiver Chipset
• Manufacturer: LSI Logic Corporation

Features and Benefits
System Features
Chipset Features
6
L64733/L64734 Tuner and Satellite Receiver Chipset
Direct down-conversion
Integrated programmable cut-off low-pass filters for variable-rate
operation
Dual AGC for optimizing performance with respect to intermodulation
and noise
Integrated synthesizer
Integrated quadrature amplitude and phase imbalance compensation
RF loop-through
Supports DVB and DSS system specifications
BPSK/QPSK demodulation rates from 1 to 45 Mbaud
Matched filter (square root raised cosine filter with roll-off factor of
20% or 35%)
Anti-aliasing filters for operation from 1 to 45 Mbaud without
switching external SAW filters or the need for low-pass filters
On-chip digital clock synchronization
On-chip digital carrier synchronization, featuring a frequency sweep
capability for signal acquisition
Auto-acquisition demodulator mode and tuner control through an
on-chip microcontroller
Integrated Phase-Locked Loop (PLL) for clock synthesis, allowing the
use of a fundamental mode crystal
Fast channel switching mode
Power estimation for AGC control
Programmable Viterbi decoder module for rates 1/2, 2/3, 3/4, 5/6,
6/7, 7/8
Reed-Solomon decoder (204/188), (146/130)
Auto-synchronization for Viterbi decoder