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HSP45106JC-25 Datasheet

  • HSP45106JC-25

  • 16-Bit Numerically Controlled Oscillator

  • 14頁

  • INTERSIL   INTERSIL

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HSP45106
Data Sheet
October 1999
File Number
2809.5
16-Bit Numerically Controlled Oscillator
The Intersil HSP45106 is a high performance 16-bit
quadrature Numerically Controlled Oscillator (NCO16). The
NCO16 simpli鏗乪s 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 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 0.008Hz at 33MHz. 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 0.006
o
. In applications
requiring up to 8-level PSK, three discrete inputs are
provided to simplify implementation.
The output of the PFCS is a 28-bit phase 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 鏗俥xibility when using the NCO16 in conjunction
with DAC鈥檚, a choice of either parallel or serial outputs with
either two鈥檚 complement or offset binary encoding is
provided. In addition, a synchronization signal is available
which indicates serial word boundaries.
Features
鈥?25.6MHz, 33MHz Versions
鈥?32-Bit Center and Offset Frequency Control
鈥?16-Bit Phase Control
鈥?8 Level PSK Supported Through Three Pin Interface
鈥?Simultaneous 16-Bit Sine and Cosine Outputs
鈥?Output in Two鈥檚 Complement or Offset Binary
鈥?<0.008Hz Tuning Resolution at 33MHz
鈥?Serial or Parallel Outputs
鈥?Spurious Frequency Components <-90dBc
鈥?16-Bit Microprocessor Compatible Control Interface
Applications
鈥?Direct Digital Synthesis
鈥?Quadrature Signal Generation
鈥?Spread Spectrum Communications
鈥?PSK Modems
鈥?Modulation - FM, FSK, PSK (BPSK, QPSK, 8PSK)
鈥?Frequency Hopping Communications
鈥?Precision Signal Generation
鈥?Related Products
- Use with Data Acquisition Parts HI5731 or HI5741
Ordering Information
PART NUMBER
HSP45106JC-25
HSP45106JI-25
HSP45106JC-33
HSP45106GC-33
TEMP.
RANGE (
o
C)
0 to 70
-40 to 85
0 to 70
0 to 70
PACKAGE
84 Ld PLCC
84 Ld PLCC
84 Ld PLCC
85 Ld CPGA
PKG. NO.
N84.1.15
N84.1.15
N84.1.15
G85.A
Block Diagram
MICROPROCESSOR
INTERFACE
CLOCK
DISCRETE
CONTROL SIGNALS
SIN/COS
ARGUMENT
32
PHASE/
FREQUENCY
CONTROL
SECTION
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 407-727-9207
|
Copyright
漏
Intersil Corporation 1999

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