DATASHEET
HSP45102
FN2810
Rev 9.00
Apr 25, 2007
12-Bit Numerically Controlled Oscillator
The Intersil HSP45102 is Numerically Controlled Oscillator
(NCO12) with 32-bit frequency resolution and 12-bit output.
With over 69dB of spurious free dynamic range and worst
case frequency resolution of 0.009Hz, the NCO12 provides
significant accuracy for frequency synthesis solutions at a
competitive price.
The frequency to be generated is selected from two frequency
control words. A single control pin selects which word is used
to determine the output frequency. Switching from one
frequency to another occurs in one clock cycle, with a 6 clock
pipeline delay from the time that the new control word is
loaded until t4-he new frequency appears on the output.
Two pins, P0-1, are provided for phase modulation. They are
encoded and added to the top two bits of the phase
accumulator to offset the phase in 90° increments.
The 13-bit output of the Phase Offset Adder is mapped to the
sine wave amplitude via the Sine ROM. The output data
format is offset binary to simplify interfacing to D/A
converters. Spurious frequency components in the output
sinusoid are less than -69dBc.
The NCO12 has applications as a Direct Digital Synthesizer
and modulator in low cost digital radios, satellite terminals,
and function generators.
Features
• 33MHz, 40MHz Versions
• 32-Bit Frequency Control
• BFSK, QPSK Modulation
• Serial Frequency Load
• 12-Bit Sine Output
• Offset Binary Output Format
• 0.009Hz Tuning Resolution at 40MHz
• Spurious Frequency Components 1.5V and
VOL < 1.5V.
6. If TXFR is active, care must be taken to not violate setup and hold times as data from the shift registers may not have settled before CLK occurs.
7. Controlled via design or process parameters and not directly tested. Characterized upon initial design and after major process and/or design
changes.
AC Test Load Circuit
DUT
S1
CL (NOTE)
SWITCH S1 OPEN FOR ICCSB AND ICCOP
IOH
1.5V
IOL
EQUIVALENT CIRCUIT
NOTE: Test head capacitance.
FN2810 Rev 9.00
Apr 25, 2007
Page 7 of 9
HSP45102
Waveforms
tCP
tCH
tCL
CLK
P0-1
LOAD, TXFR,
tPS
tPH
tES
tEH
ENPHAC, SEL_L/M
tRF
tOH
OUT0-11
tSW
tSS
tDS
tDH
tSW
SCLK
SD
tMS
tMH
MSB/LSB,
SFTEN
FIGURE 4.
FN2810 Rev 9.00
Apr 25, 2007
Page 8 of 9
HSP45102
Small Outline Plastic Packages (SOIC)
M28.3 (JEDEC MS-013-AE ISSUE C)
N
28 LEAD WIDE BODY SMALL OUTLINE PLASTIC PACKAGE
INDEX
AREA
H
0.25(0.010) M
B M
INCHES
E
SYMBOL
-B-
1
2
3
L
SEATING PLANE
-A-
h x 45o
A
D
-C-
e
A1
B
0.25(0.010) M
C
0.10(0.004)
C A M
B S
MILLIMETERS
MIN
MAX
NOTES
A
0.0926
0.1043
2.35
2.65
-
0.0040
0.0118
0.10
0.30
-
B
0.013
0.0200
0.33
0.51
9
C
0.0091
0.0125
0.23
0.32
-
D
0.6969
0.7125
17.70
18.10
3
E
0.2914
0.2992
7.40
7.60
4
0.05 BSC
10.00
h
0.01
0.029
0.25
0.75
5
L
0.016
0.050
0.40
1.27
6
8o
0o
28
0o
10.65
-
0.394
0.419
1.27 BSC
H
N
NOTES:
MAX
A1
e
MIN
28
1. Symbols are defined in the “MO Series Symbol List” in Section 2.2
of Publication Number 95.
-
7
8o
Rev. 0 12/93
2. Dimensioning and tolerancing per ANSI Y14.5M-1982.
3. Dimension “D” does not include mold flash, protrusions or gate
burrs. Mold flash, protrusion and gate burrs shall not exceed
0.15mm (0.006 inch) per side.
4. Dimension “E” does not include interlead flash or protrusions. Interlead flash and protrusions shall not exceed 0.25mm (0.010
inch) per side.
5. The chamfer on the body is optional. If it is not present, a visual
index feature must be located within the crosshatched area.
6. “L” is the length of terminal for soldering to a substrate.
7. “N” is the number of terminal positions.
8. Terminal numbers are shown for reference only.
9. The lead width “B”, as measured 0.36mm (0.014 inch) or greater
above the seating plane, shall not exceed a maximum value of
0.61mm (0.024 inch)
10. Controlling dimension: MILLIMETER. Converted inch dimensions are not necessarily exact.
© Copyright Intersil Americas LLC 1999-2007. All Rights Reserved.
All trademarks and registered trademarks are the property of their respective owners.
For additional products, see www.intersil.com/en/products.html
Intersil products are manufactured, assembled and tested utilizing ISO9001 quality systems as noted
in the quality certifications found at www.intersil.com/en/support/qualandreliability.html
Intersil products are sold by description only. Intersil may modify the circuit design and/or specifications of products at any time without notice, provided that such
modification does not, in Intersil's sole judgment, affect the form, fit or function of the product. Accordingly, the reader is cautioned to verify that datasheets are
current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its
subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
FN2810 Rev 9.00
Apr 25, 2007
Page 9 of 9
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