AD9953
RECOMMENDED FOR NEW DESIGNS400 MSPS, 14-Bit, 1.8 V CMOS Direct Digital Synthesizer
- Part Models
- 2
- 1ku List Price
- Starting From $23.87
Overview
- 400 MSPS internal clock speed
- Integrated 14-bit DAC
- 32-bit tuning word
- Phase noise ≤ –120 dBc/Hz at 1 kHz offset (DAC output)
- Excellent dynamic performance:
>80 dB SFDR at 160 MHz (±100 kHz offset) AOUT - Serial input/output (I/O) control
- 1.8 V power supply
- Software and hardware controlled power-down
- 48-lead TQFP/EP package
- PLL REFCLK multiplier (4× to 20×)
- Internal oscillator, can be driven by a single crystal
- Phase modulation capability
- Multichip synchronization
The AD9953 is a direct digital synthesizer (DDS) featuring a 14-bit DAC operating up to 400 MSPS. The AD9953 uses advanced DDS technology, coupled with an internal high speed, high performance DAC to form a digitally programmable, complete high frequency synthesizer capable of generating a frequency-agile analog output sinusoidal waveform at up to 200 MHz. The AD9953 includes an integrated 1024 × 32 static RAM to support flexible frequency sweep capability in several modes. The AD9953 is designed to provide fast frequency hopping and fine tuning resolution (32-bit frequency tuning word). The frequency tuning and control words are loaded into the AD9953 via a serial I/O port.
The AD9953 is specified to operate over the extended industrial temperature range of –40°C to +105°C.
Applications
- Agile VHF/UHF LO frequency synthesis
- FM chirp source for radar and scanning systems
- Nonlinear-shaped PSK/FSK modulator
- Test and measurement equipment
Documentation
Data Sheet 1
Application Note 20
Technical Articles 21
Product Highlight 1
Frequently Asked Question 1
Product Highlight 1
Webcast 2
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD9953YSVZ | 48-Lead TQFP (7mm x 7mm w/ EP) | ||
| AD9953YSVZ-REEL7 | 48-Lead TQFP (7mm x 7mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 16, 2009 - 09_0027 Conversion to Laser Mark for the LQFP Packages (Single Grades) |
||
| AD9953YSVZ | ||
| AD9953YSVZ-REEL7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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ADIsimDDS (Direct Digital Synthesis)
ADIsimDDS uses mathematical equations to model and illustrate the overall performance of the selected device. ADIsimDDS calculates the required FTW, given the reference clock frequency and desired output frequency. This tool also models an estimate of the overall spectral performance, and allows the user to explore the effects of external reconstruction filters.
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