參數(shù)資料
型號: L64780
廠商: LSI Corporation
英文描述: DVB-T COFDM Demodulator(對地數(shù)字視頻廣播 正交編碼頻率分割多路處理解調(diào)器)
中文描述: 的DVB - T COFDM解調(diào)器(對地數(shù)字視頻廣播正交編碼頻率分割多路處理解調(diào)器)
文件頁數(shù): 68/126頁
文件大小: 953K
代理商: L64780
4-16
Register Descriptions
QAMTYPE
Constellation Type
When this register is read, these bits provide the last
value received by the channel, using the TPS signalling
information.
R/W [1:0]
When this register is written to, these bits store the next
Constellation Type value that the system uses. The
values are:
The initial condition for the QAMTYPE is 0b10 ( 64 QAM).
4.4 Parameter Registers
The Parameter registers contain configuration information. If the registers
are read, they indicate the current parameter value. These Parameter
registers are only configurable through the microprocessor.
4.4.1 Address Line 0x05
AFC_CLIPPING
AFC Loop Bandwidth Limiter
This bit selects the combination method between the
Fine Algorithm part and the Coarse Algorithm part.
R/W 7
When using Method I (AFC_CLIPPING = 0), the
combination is done by adding the two values. When the
Coarse part is an integer number of carrier spacing, and
the Fine part is a fraction of the carrier spacing, the result
is the exact frequency offset.
When using Method II (AFC_CLIPPING = 1), the Fine
part is only considered when the AFC Coarse value is 0.
QAMTYPE[1:0]
Definition
00
01
10
11
QPSK
16 QAM
64 QAM
reserved
7
6
5
4
3
2
0
0x05
CLIPPINGAFC_MODEAFC_FINE
AFC_STALL AFC_POL AFC_SENSITIVITY
相關(guān)PDF資料
PDF描述
L652DU12RE 128 Megabit (16 M x 8-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileIO⑩ Control
L652DU12RF 128 Megabit (16 M x 8-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileIO⑩ Control
L652DU12RI 128 Megabit (16 M x 8-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileIO⑩ Control
L652DU12RK 128 Megabit (16 M x 8-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileIO⑩ Control
L652DU90RF 128 Megabit (16 M x 8-Bit) CMOS 3.0 Volt-only Uniform Sector Flash Memory with VersatileIO⑩ Control
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