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HSP45106/883

产品描述16-BIT, DSP-NUM CONTROLLED OSCILLATOR, CPGA85
产品类别半导体    嵌入式处理器和控制器   
文件大小55KB,共6页
制造商Intersil ( Renesas )
官网地址http://www.intersil.com/cda/home/
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HSP45106/883概述

16-BIT, DSP-NUM CONTROLLED OSCILLATOR, CPGA85

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HSP45106/883
TM
Data Sheet
May 1999
FN2815.3
16-Bit Numerically Controlled Oscillator
The Intersil HSP45106/883 is a high performance 16-bit
quadrature Numerically Controlled Oscillator (NCO16). The
NCO16 simplifies applications requiring frequency and
phase agility such as frequency-hopped modems, PSK
modems, spread spectrum communications, and precision
signal generators. As shown in the Block Diagram, the
HSP45106/883 is divided into a Phase/Frequency Control
Section (PFCS) and a Sine/Cosine Section.
The inputs to the Phase/Frequency Control Section consist
of a microprocessor interface and individual control lines.
The frequency resolution is 32 bits, which provides for
resolution of better than 0.006Hz at 25.6MHz. User
programmable center frequency and offset frequency
registers give the user the capability to perform phase
coherent switching between two sinusoids of different
frequencies. Further, a programmable phase control register
allows for phase control of better than 0.006o. In applications
requiring up to 8 level PSK, three discrete inputs are
provided to simplify implementation.
The output of the PFCS is a 32-bit phase argument which is
input to the Sine/Cosine Section for conversion into
sinusoidal amplitude. The outputs of the Sine/Cosine
Section are two 16-bit quadrature signals. The spurious free
dynamic range of this complex vector is greater than 90dBc.
For added flexibility when using the NCO16 in conjunction
with DAC’s, a choice of either parallel of serial outputs with
either two’s complement or offset binary encoding is
provided. In addition, a synchronization signal is available
which signals serial word boundaries.
Features
• This Circuit is Processed in Accordance to MIL-STD-883
and is Fully Conformant Under the Provisions of
Paragraph 1.2.1.
• 25.6MHz Clock Rate
• 32-Bit Center and Offset Frequency Control
• 16-Bit Phase Control
• 8 Level PSK Supported Through Three Pin Interface
• Simultaneous 16-Bit Sine and Cosine Outputs
• Output in Two’s Complement or Offset Binary
• <0.006Hz Tuning Resolution at 25.6MHz
• Serial or Parallel Outputs
• Spurious Frequency Components < -90dBc
• 16-Bit Microprocessor Compatible Control Interface
Applications
• Direct Digital Synthesis
• Quadrature Signal Generation
• Modulation - FM, FSK, PSK (BPSK, QPSK, 8PSK)
• Precision Signal Generation
Ordering Information
PART NUMBER
HSP45106GM-25/883
TEMP.
RANGE (
o
C)
-55 to 125
PACKAGE
85 Ld PGA
PKG.
NO.
G85.A
Block Diagram
MICROPROCESSOR
INTERFACE
DISCRETE
CONTROL SIGNALS
CLOCK
SIN/COS
ARGUMENT
PHASE/
FREQUENCY
CONTROL
SECTION
32
SINE/
COSINE
SECTION
SINE
16
COSINE 16
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
|
Intersil (and design) is a trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2002. All Rights Reserved

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