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Direct Digital Synthesizer

Package Information

Pkg. Type LQFP
Pkg. Code QMB
Pitch (mm) 0.5
Lead Count (#) 48
Pkg. Dimensions (mm) 7.01 x 7.01 x 0.00

Environmental & Export Classifications

ECCN (US) EAR99
RoHS (ISL5314INZ) Download
Moisture Sensitivity Level (MSL) 3
Pb (Lead) Free Yes
HTS (US)

Product Attributes

Pkg. Type LQFP
Carrier Type Tray
Price (USD) | 1ku 33.4128
Filter Subtype DDS
Filtering None
Frequency Resolution 48
Input Data (Bits) 14
Input Rate (MSPS) 125
Lead Count (#) 48
Length (mm) 7
MOQ 250
Modulation Formats QPSK, FSK
Moisture Sensitivity Level (MSL) 3
Output Analog
Pb (Lead) Free Yes
Pb Free Category Pb-Free 100% Matte Tin Plate w/Anneal-e3
Pitch (mm) 0.5
Pkg. Dimensions (mm) 7.0 x 7.0 x 0.00
Qualification Level Standard
Temp. Range -40 to +85°C
Thickness (mm) 0
Width (mm) 7

Description

The 14-bit ISL5314 is 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 digital-to-analog converter (DAC) 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. 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.