RS8973 Mindspeed Technologies, RS8973 Datasheet - Page 30

• Manufacturer Part Number: RS8973
• Description: Single-chip Sdsl/hdsl Transceiver
• Manufacturer: Mindspeed Technologies

2.0 Functional Description
2.2 Receive Section
2.2.3 Digital Signal Processor
Figure 2-3. Receiver Digital Signal Processing
2-6
Front-End
Digital
SLM
FILTER
IS
Echo Canceller
–
LEC
The DSP includes five Least Mean Squared (LMS) filters:
transmitted from the far-end can be reliably recovered. The DSP uses symbol rate
sampling for all processing functions.
relationships to the digital front-end and the detector.
• Echo Canceller (EC)
• Digital Automatic Gain Controller (DAGC)
• Feed Forward Equalizer (FFE)
• Error Predictor (EP)
• Decision Feedback Equalizer (DFE).
These filters are used to equalize the received signal so that the symbols
–
NEC
FELM
Preliminary Information
DAGC
Conexant
Transmit
Symbol
FFE
Detector
Figure 2-3
Equalizer
–
DFE
Single-Chip SDSL/HDSL Transceiver
–
shows the interconnections and
EP
Slicer
PKD
–
–
N8973DSD
RS8973
Interface
Channel
Unit