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ISL5314EVAL2 Datenblatt(PDF) 1 Page - Intersil Corporation

Teilenummer ISL5314EVAL2
Bauteilbeschribung  Direct Digital Synthesizer
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Hersteller  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ISL5314EVAL2 Datenblatt(HTML) 1 Page - Intersil Corporation

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1
®
FN4901.2
ISL5314
Direct Digital Synthesizer
The 14-bit ISL5314 provides a complete Direct Digital
Synthesizer (DDS) system in a single 48-pin LQFP package.
A 48-bit Programmable Carrier NCO (numerically controlled
oscillator) and a high speed 14-bit DAC (digital to analog
converter) are integrated into a stand alone DDS.
The DDS accepts 48-bit center and offset frequency control
information via a parallel processor interface. A 40-bit
frequency tuning word can also be loaded via an asynchronous
serial interface. Modulation control is provided by 3 external
pins. The PH0 and PH1 pins select phase offsets of 0, 90,
180 and 270 degrees, while the ENOFR pin enables or zeros
the offset frequency word to the phase accumulator.
The parallel processor interface has an 8-bit write-only data
input C(7:0), a 4-bit address A(3:0) bus, a Write Strobe
(WR), and a Write Enable (WE). The processor can update
all registers simultaneously by loading a set of master
registers, then transfer all master registers to the slave
registers by asserting the UPDATE pin.
Block Diagram
Features
• 125MSPS output sample rate with 5V digital supply
• 100MSPS output sample rate with 3.3V digital supply
• 14-bit digital-to-analog (DAC) with internal reference
• Parallel control interface for fast tuning (50MSPS control
register write rate) and serial control interface
• 48-bit programmable frequency control
• Offset frequency register and enable pin for fast FSK
• Small 48-pin LQFP packaging
Pb-Free plus anneal available (RoHS compliant)
Applications
• Programmable local oscillator
• FSK, PSK modulation
• Direct digital synthesis
• Clock generation
Pinout
48-PIN LQFP (Q48.7X7A)
TOP VIEW
Ordering Information
PART #
TEMP. RANGE (°C) PACKAGE PKG. DWG. #
ISL5314IN
-40 to 85
48 LQFP
Q48.7x7A
ISL5314INZ
(See Note)
-40 to 85
48 LQFP
(Pb-free)
Q48.7x7A
ISL5314EVAL2
25
Evaluation Board
NOTE: Intersil Pb-free plus anneal products employ special Pb-free material
sets; molding compounds/die attach materials and 100% matte tin plate
termination finish, which are RoHS compliant and compatible with both SnPb
and Pb-free soldering operations. Intersil Pb-free products are MSL classified
at Pb-free peak reflow temperatures that meet or exceed the Pb-free
requirements of IPC/JEDEC J STD-020.
SINE
ROM
PHASE
ACCUM.
C(7:0)
RESET
CLK
A(3:0)
UPDATE
ENOFR
PH(1:0)
WR
WE
IOUTA
IOUTB
INT
REF
REFIO
REFLO
DAC
14 BIT
COMP1
COMP2
IN-
IN+
WAVE
+
-
SDATA
SSYNC
SCLK
1
2
3
4
5
6
7
8
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
9
10
11
12
13 14 15 16
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
A2
A3
PH0
PH1
SSYNC
DVDD
SCLK
DGND
DGND
SDATA
DVDD
DGND
C2
C1
C0
ENOFR
DGND
RESET
UPDATE
COMPOUT
REFLO
REFIO
CLK
DVDD
ISL5314
Data Sheet
July 28, 2005
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2000, 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.


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