STEL-1209/CE Intel, STEL-1209/CE Datasheet - Page 18

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

Master Mode, BPSK
BURST TIMING SIGNAL RELATIONSHIPS
Slave Mode, BPSK
BURST TIMING SIGNAL RELATIONSHIPS
STEL-1209
DATAENO
DATAENO
SCRMEN
SCRMEN
RDSLEN
SYMPLS
DATAEN
TSDATA
RDSLEN
SYMPLS
DATAEN
TSDATA
DIFFEN
BITCLK
DIFFEN
CLKEN
BITCLK
NOTE 1:
NOTE 2:
CLKEN
TCLK
TCLK
GUARD TIME
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
PI
PREAMBLE
PI
NOTE 2
NOTE 2
PI
PI
PI
PI
18
UI
H
NOTE 1
NOTE 1
is a "1" then the rising edge of DATAENO will be
UI
USER DATA
UI
USER DATA
UI
UI
UI
UI
UI
GI
GI
GUARD TIME
GI
GUARD TIME
GI
WCP 52912.c-5/6/97
WCP 52911.c-5/6/97
GI
GI
GI
GI