tda5235 Infineon Technologies Corporation, tda5235 Datasheet - Page 56

• Manufacturer Part Number: tda5235
• Description: Enhanced Sensitivity Double-configuration Receiver With Digital Baseband Processing
• Manufacturer: Infineon Technologies Corporation

encoded data (chips). Basically the Framer consists of two identical correlators of 16
chips in length. It allows a Telegram Start Identifier (TSI) to be composed of Bi-phase
encoded “Zeros” and “Ones”. The active length of each of the 16 chips correlators is
defined independently in the x_TSILENA and x_TSILENB registers. The pattern to
match is defined as a sequence of chips in the x_TSIPTA0, x_TSIPTA1, x_TSIPTB0 and
x_TSIPTB1 registers.
Note that the RUNIN length shown in the figures below is the maximum needed RUNIN
with the length of 8 chips. Further details on the needed RUNIN time of the receiver can
be seen in
Figure 26
Data Sheet
from CR
Slicer
Data-
Sync
from
Chip-Data Clock
Chip-Data
Chapter 2.4.8.3 Clock and Data
Code-Violation
Manchester -
Bi-phase- /
Detector
Decoder
Frame Synchronization Unit
MUX
Data
Data Clock
CV
MRB
MRB
LSB
LSB
TSI wild card
TSI Data-Pattern
TSI Data-Pattern
x_TSIMODE(6:3)
Correlator A 16-bit
Correlator B 16-bit
Delay-Line 16-bit
Delay-Line 16-bit
MSB
MSB
LSB
LSB
TSI Data -Pattern
TSI Data -Pattern
56
Recovery.
LRB
MSB
LRB
MSB
Correlator A
Correlator B
Controller
Controller
x_TSILENA
x_TSILENB
Functional Description
EOM-Detector
Synchron -
Controller
ization
Frame
V1.0, 2010-02-19
x_EOMDLENP
EOMDATLEN
x_EOMDLEN
x_TSIMODE
TDA5235
EOMSYLO
x_TSIGAP
EOMCV
CorrAMatch
EOM
FSync
Data
Data Clock