hsp50210 Intersil Corporation, hsp50210 Datasheet - Page 15

• Manufacturer Part Number: hsp50210
• Description: Digital Costas Loop
• Manufacturer: Intersil Corporation

FRZ_ST
BLANK = CLK RATE
REGISTER ENABLE RATE
END
END
MID
MID
!
!
Q
Q
R
E
G
I
I
= SYMBOL RATE
SAMPLING ERROR DETECTOR
DECISION
DECISION
DATA
DATA
MID-SYMBOL
MID-SYMBOL
TRANSITION
TRANSITION
TRANSITION
TRANSITION
MID-POINT
MID-POINT
DETECT
DETECT
+
+
-
-
‘0’
‘0’
MUX
MUX
‘1’
‘1’
‘-1’
‘-1’
MUX
+
‘0’
“0”
SINGLE/
DOUBLE
RAIL
FIGURE 11. SYMBOL TRACKING
SAMPLING
INVERT
ERROR
!
MANTISSA
“0”
“0”
MANTISSA
ZERO
LEAD
SYMBOL TRACK
LOOP FILTER
ZERO
LAG
ACQ
LAG
REG
LEAD
ACQ
REG
MUX
MANTISSA
REG
LAG
MANTISSA
TRACK
MUX
TRACK
LEAD
LAG GAIN
LEAD GAIN
REG
EXPONENT
EXPONENT
LEAD
REG
REG
ACQ
LAG
ACQ
MUX
MUX
REG
REG
LAG
EXPONENT
TRACK
LEAD
EXPONENT
TRACK
LOAD
ACC
MUX
+
ACCUMULATOR
UPPER/LOWER
ACC LIMITS
LAG
+
FORMATTER
REG
OUTPUT
SERIAL
SOFSYNC
TO
INTERFACE
P
SOF