參數(shù)資料
型號(hào): L64777
英文描述: L64777 DVB QAM Modulator technical manual 6/00
中文描述: L64777的DVB QAM調(diào)制器技術(shù)手冊(cè)6 / 00
文件頁(yè)數(shù): 9/124頁(yè)
文件大小: 988K
代理商: L64777
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Contents
ix
2.17
2.18
2.19
2.20
2.21
2.22
2.23
2.24
3.1
3.2
5.1
6.1
6.2
6.3
6.4
6.5
A.1
A.2
A.3
A.4
A.5
B.1
B.2
Byte to Symbol Conversion
Differential Encoder and QAM Mapping
Pulse Shaper Structure
Output Scaling by Arithmetic Shift Right
Square-Root Raised Cosine Filter
NCO Loop Diagram
Frequency Acquisition Loop Overview
Serial Bus Base Address
Analog I/Q Output Interface Diagram
I And Q DAC Filter Diagrams
Logic Symbol for the L64777
TS Input Timing
L64777 RESET Timing Diagram
L64777 Bus 3-state Delay Timing
Package 120-Pin PQFP Pinout
120-Pin PQFP (PE) Mechanical Drawing
Quick Overview of the Serial Bus
Serial Bus Write/Read Cycle
General Call Structure
Burst Write to Slave (Master-Transmitter, Slave-Receiver)
Single Read from Slave
CATV Block Diagram
Signals between the L64724 and L64777
2-25
2-26
2-27
2-29
2-34
2-36
2-38
2-40
3-4
3-5
5-2
6-3
6-3
6-4
6-10
6-11
A-2
A-3
A-4
A-5
A-7
B-1
B-3
Tables
2.1
2.2
4.1
4.2
6.1
6.2
6.3
6.4
6.5
6.6
6.7
B.1
Allocation of Coefficient-Bits for Phase 0
Default Nyquist Filter Coefficients
Group 2 Bit Allocation
Reset Values for Register Fields
L64777 Absolute Maximum Ratings
L64777 Recommended Operating Conditions
L64777 DC Characteristics
L64777 Preliminary Timing Parameters
L64777 Pin Description Summary
L64777 Numerical Pin List
L64777 Alphabetical Pin List
Typical Settings of CNT_I and CNT_O
2-30
2-32
4-2
4-17
6-2
6-2
6-2
6-4
6-5
6-8
6-9
B-2
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