L64733 LSI Logic Corporation, L64733 Datasheet - Page 3

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

Figure 3
(MPEG-2
Transport
4–7.26 MHz
Channel
Stream)
RF Out
Output
Circuit
RF In
Tank
L64733
L64734
(from L64734
on-chip PLL)
Detailed Chipset Block Diagram
VCO
Xtal
Osc
Descrambler
Dual
ADC
Clk
Figure 3
Switch
L64733/L64734 Tuner and Satellite Receiver Chipset
X2
RF
by 8
Microcontroller Data and Address Bus
Synthesizer Control Module
FEC Decoder Pipeline
Amp
shows a more detailed chipset block diagram.
Detect.
Phase
Solomon
Decoder
Demodulator
BPSK/QPSK
Reed-
Microcontroller Data and Address Bus
Interpolator/Decimation
Prescaler
Modulus
Dual-
Charge
Pump
Filter
Convolutional
Down-Converter
Deinterleaver
Quadrature
90
External Microcontroller Interface
To External
Loop Filter
Loop Control
Timing Loop
Control
Control
Carrier
AGC
Synchronizer
Solomon
Matched
Reed-
Filter
Synchronizer
Control
Output
Decoder
Module
Control
Viterbi
Viterbi
Filter
DEMI
1/T
DEMQ
Fc
3