參數(shù)資料
型號: L64777
廠商: LSI CORP
元件分類: 消費家電
英文描述: Digital Video Broadcasting(DVB)-Compliant,quadrature amplitude modulation (QAM)Modulator(數(shù)字視頻廣播系統(tǒng)適配的積分調(diào)幅調(diào)制器)
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP120
封裝: 32 MM, PLASTIC, QFP-120
文件頁數(shù): 21/124頁
文件大?。?/td> 988K
代理商: L64777
I/O
2-7
Figure 2.4
Analog I/Q Output Interface Diagram
The differential outputs terminate externally (the external components
must provide termination to both differential lines, and the DAC achieves
maximum linearity in differential mode).
The L64777 I and Q component outputs are available in 10-bit digital
format. The related clock depends on the PLL mode: OCLK is used in
Mode 1; PCLK is used in Mode 2. The output format can be programmed
either as a two’s complement, or as a sign magnitude representation.
The analog I- and Q-modulated output signals are at a sampling rate of
OCLK, which is four times the QAM symbol rate. The input to the
digital-to-analog conversion is available also in a digital format at the
DIG_I and DIG_Q bus pins.
AVDD1/COMP1
VREF1
VREF2
10-Bit DAC
10
AVSS2
AVDD2/COMP2
Differential Q Output
QAM_Q, QAM_Qn
Differential I Output
QAM_I, QAM_In
VSS
AVSS1
R
VDDX1
3
On-Chip
Off-Chip
Q Filter Output
I Filter Output
Functional
Test Bus
(Test mode is
selected using
FT mode pins)
VDDX2
10
10-Bit DAC
R
3
2
10
相關(guān)PDF資料
PDF描述
L64825 Non-VGA Video Controller
L64845 64-Bit Graphics (GUI) Accelerator
L64850GC-25 DRAM Controller
L64850GC-33 DRAM Controller
L64850GC-40 DRAM Controller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L64780 制造商:未知廠家 制造商全稱:未知廠家 功能描述:L64780 DVB-T COFDM Demodulator technical manual 2/00
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