L64724 LSI Logic Corporation, L64724 Datasheet - Page 250
L64724
Manufacturer Part Number
L64724
Description
Satellite Receiver
Manufacturer
LSI Logic Corporation
Datasheet
1.L64724.pdf
(294 pages)
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B-36
Group 4, APR 29 – Set to 0x1F.
The recommended value for CAR_LC_THSL[7:0] is 31 (0x1F) when
FP_LOCK_LEN (Group 4, APR 54) is set to 0. Otherwise, set it
according to the following table:
Group 4, APR 30 – Set to 0x00.
Group 4, APR 31 – Set to 0x20.
Set the RS Bit/Byte Select bit (D7) as needed to select the Reed-
Solomon bit or byte error count for Group 3 APR 0 and 1. Set the
Errorout_Invert bit (D6) as needed to control the polarity of the
ERROROUTn signal. Set the SPI_On_Off bit (D5) to 1. Clear bits D4
through D0 to 0.
Group 4, APR 32–33 – Set to 0x11C.
The value for the sweep rate, CAR_SWR[15:0], is set according to
Equation B.46
required.
Equation B.46
Equation B.47
Set Group 4, APR 33 to 0x01 and APR 32 to 0x1C.
L64724 Application Notes
FP_LOCK_LEN CAR_LC_THSL[7:0]
CAR_SWR
CAR_SWR
0
1
=
=
and
2
---------------------------------------------------------------- 2
2
-------------------------------------------------------- -
37
37
Equation
60 10
sweeprat e T
2 10
F s
31
72
6
16
6
B.47. Assume a sweep rate of 2 MHz/s is
----------------------- -
2.0 10
16
1
6
2
Low E
High E
=
b
284
b
/N
/N
o
o
(0x11C)
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