STEL-1209/CE Intel, STEL-1209/CE Datasheet - Page 19

• Manufacturer Part Number: STEL-1209/CE
• Description: BPSK/QPSK/16 QAM Burst Modulator Assembly
• Manufacturer: Intel

Master Mode, QPSK
BURST TIMING SIGNAL RELATIONSHIPS
Slave Mode, QPSK
BURST TIMING SIGNAL RELATIONSHIPS
DATAENO
DATAENO
DATAENI
SCRMEN
SCRMEN
RDSLEN
SYMPLS
TSDATA
DATAEN
RDSLEN
SYMPLS
TSDATA
DIFFEN
BITCLK
DIFFEN
CLKEN
BITCLK
CLKEN
TCLK
TCLK
GUARD TIME
NOTE 1:
NOTE 2:
GUARD TIME
STEL receivers differentially decode relative to the last preamble symbol. To encode the
first symbol against a "zero" symbol reference instead, bring DIFFEN high at the
leading edge of the user data packet (dotted line).
If bit 6 of Configuration Register 36
delayed by eight cycles of BITCLK (dotted line). This is required if the Reed-Solomon
encoder is used.
PI
PI
PREAMBLE
PQ
PREAMBLE
PQ
PI
PI
PQ
PQ
19
NOTE 2
UI
H
NOTE 2
NOTE 1
is a "1" then the rising edge of DATAENO will be
NOTE 1
UI
USER DATA
UQ
USER DATA
UQ
UI
UI
UQ
UQ
GI
GI
GUARD TIME
GQ
GUARD TIME
GQ
GI
GI
WCP 52840.c-5/2/97
WCP 52839.c-5/7/97
GQ
STEL-1209
GQ