參數(shù)資料
型號: L64780
廠商: LSI Corporation
英文描述: DVB-T COFDM Demodulator(對地?cái)?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?cái)?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): 17/126頁
文件大?。?/td> 953K
代理商: L64780
Typical Performance
1-7
Stand-alone FFT mode (forward or inverse)
Easy connection to the L64705 or L64724 for FEC
160-pin PQFP package
1.6 Typical Performance
Figure 1.4
illustrates the target performance of the L64780 compared to
the simulation results in the ETSI specification for all the nonhierarchical
modes in a Gaussian channel. Differences between the target
performance and the simulations are accounted for as follows:
About 1.5 dB for the noisy reference effect in the channel equalizer
0.1–0.3 dB for noise on the channel state measurement
It is not possible to be specific about the source of the remaining small
difference (about 0.4 dB) because we do not have enough information
about the conditions under which the simulations were performed.
The two losses (in the channel equalizer and channel state information)
are compromises made in the interests of the speed of tracking of a
time-varying channel. Sacrificing the tracking ability reduces the losses.
Figure 1.4
Performance with Additive Write Gaussian Noise
(AWGN)
25
20
15
10
5
0
1/2 2/3 3/4
5/6 7/8
1/2 2/3 3/4
5/6 7/8
1/2
2/3 3/4
64 QAM
5/6 7/8
QPSK
16 QAM
C
Measured QEF
Simulated QEF from specification
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
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L64781 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single-Chip COFDM Receiver
L64782 制造商:未知廠家 制造商全稱:未知廠家 功能描述:L64782 Single-Chip COFDM Receiver
L6480 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:The L6480, realized in analog mixed signal technology, is an advanced fully integrated solution suitable for driving two-phase bipolar stepper motors with microstepping.
L64801GC-20 制造商:未知廠家 制造商全稱:未知廠家 功能描述:32-Bit Microprocessor
L64801GC-25 制造商:未知廠家 制造商全稱:未知廠家 功能描述:32-Bit Microprocessor