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ISL5314INZ датащи(PDF) 1 Page - Intersil Corporation |
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ISL5314INZ датащи(HTML) 1 Page - Intersil Corporation |
1 / 17 page 1 ® FN4901.3 ISL5314 Direct Digital Synthesizer The 14-bit ISL5314 provides a complete Direct Digital Synthesizer (DDS) system in a single 48 Ld 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°, 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 Ld LQFP packaging • Pb-Free (RoHS compliant) Applications • Programmable local oscillator • FSK, PSK modulation • Direct digital synthesis • Clock generation Pinout ISL5314 (48 LD LQFP) TOP VIEW Ordering Information PART NUMBER PART MARKING TEMP. RANGE (°C) PACKAGE (Pb-free) PKG. DWG. # ISL5314INZ ISL5314 INZ -40 to +85 48 Ld LQFP Q48.7x7A ISL5314EVAL2 25 Evaluation Board NOTES: 1. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate plus anneal (e3 termination finish, which is 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. 2. For Moisture Sensitivity Level (MSL), please see device information page for ISL5314. For more information on MSL please see techbrief TB363. 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 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, 2010. All Rights Reserved All other trademarks mentioned are the property of their respective owners. January 19, 2010 |
Аналогичный номер детали - ISL5314INZ |
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Аналогичное описание - ISL5314INZ |
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