L64780 LSI Logic Corporation, L64780 Datasheet - Page 21

• Manufacturer Part Number: L64780
• Description: Dvb-t Cofdm Demodulator Technical Manual 2/00
• Manufacturer: LSI Logic Corporation

Figure 2.1
Low IF
VCXO = Voltage-controlled crystal oscillator
Input
FFT = Fast Fourier Transform
ADC = Analog-to-digital converter
SD = Sigma-Delta
CSI = Channel state information
ADC
VCXO
Detect
AGC
DTTV Demodulator Architecture
AGC Control
Complex
Real
to
AFC Control
Frequency
Digital
Shift
Frequency
Sync
FFT
Time
Sync
SD
SD
Analog AFC Control
Correction
CPE
Guard Interval Configuration
& Equalization
Decoder
Estimation
Channel
TPS
and FFT Size
CSI
Frame Pulse
Configuration Information
Metrics
Viterbi
Quantize
Microprocessor
Interface
Symbol
Deintlv.
Interface.
Output
Deintlv.
Bit
FEC
To