AD9914BCPZ
Brand: Analog Devices
The AD9914BCPZ is Analog Devices' highest-speed Direct Digital Synthesizer featuring a 3.5GSPS internal clock, integrated 12-bit RF DAC, and 48-bit frequency tuning word delivering sub-Hz resolution (12.4 uHz at 3.5GSPS). With an on-chip PLL for reference clock multiplication, 32-bit parallel data port for high-speed modulation, and nanosecond-scale frequency/phase/amplitude switching, it is the definitive DDS engine for radar LFM/chirp generation, electronic warfare and jamming, RF test equipment, software-defined radio, and precision signal generation where frequency agility and spectral purity are mission-critical.
Product Specifications
AD9914BCPZ - ADI 3.5GSPS Direct Digital Synthesizer, 12-bit DAC, 88-LFCSP
Analog Devices Inc. - 48-bit Frequency Tuning, 16-bit Phase, Integrated PLL, 32-bit Parallel Port
MFR Part #: AD9914BCPZSuperb SKU: SUP-AD9914BCPZ
In Stock - Ready to Ship
The AD9914BCPZ is Analog Devices' highest-speed Direct Digital Synthesizer featuring a 3.5GSPS internal clock, integrated 12-bit RF DAC, and 48-bit frequency tuning word delivering sub-Hz resolution (12.4 uHz at 3.5GSPS). With an on-chip PLL for reference clock multiplication, 32-bit parallel data port for high-speed modulation, and nanosecond-scale frequency/phase/amplitude switching, it is the definitive DDS engine for radar LFM/chirp generation, electronic warfare and jamming, RF test equipment, software-defined radio, and precision signal generation where frequency agility and spectral purity are mission-critical.
Request QuoteContact Sales
Key Performance Highlights
System Clock
3.5 GSPS
DAC Resolution
12-bit
Frequency Res
48-bit FTW (sub-Hz)
Phase / Amplitude
16-bit / 12-bit
Parallel Port
32-bit (fast modulation)
Package
88-LFCSP (12 x 12 mm)
Technical Specifications
| Manufacturer | Analog Devices Inc. |
| Part Number | AD9914BCPZ |
| Device Type | Direct Digital Synthesizer (DDS) + Integrated DAC |
| Max System Clock (SYSCLK) | 3.5 GSPS (3.5 GHz) |
| Max Output Frequency | ~1.4 GHz (Nyquist: SYSCLK / 2.5) |
| DAC Resolution | 12-bit |
| Frequency Tuning Word (FTW) | 48-bit (resolution: ~12.4 uHz at 3.5 GSPS) |
| Phase Offset | 16-bit |
| Amplitude Control | 12-bit |
| Integrated PLL | Yes (REFCLK PLL multiplier) |
| Parallel Data Port | 32-bit (16-bit FTW + 16-bit phase/amp) |
| Linear Sweep Capability | Yes (frequency, phase, amplitude) |
| Profile Registers | Multiple (rapid parameter switching) |
| SFDR (Narrowband) | > 60 dBc (typical) |
| Supply Voltage | 1.8 V and 3.3 V (dual rails) |
| Package | 88-LFCSP (12 mm x 12 mm, exposed pad) |
| RoHS | RoHS Compliant |
Product Details
DDS Architecture — Precision Frequency Generation
A Direct Digital Synthesizer generates an output sinusoid by driving a phase accumulator with a 48-bit frequency tuning word, then mapping the accumulated phase through a sine lookup table to the 12-bit DAC. This digital approach yields fundamental advantages over analog PLL+VCO designs:
Sub-Hz Resolution: 3.5 GSPS / 2^48 = 12.4 uHz — effectively infinite for all practical RF applications. No PLL can match this without fractional-N spurs and lock time penalties.
Nanosecond Switching: Frequency/phase/amplitude changes take effect on the next clock edge (285 ps). No PLL lock time. This enables frequency-agile systems — radar LFM chirps, frequency hopping, and fast modulation — that are impossible with traditional analog synthesizers.
Key Applications
Radar LFM / Chirp Generation - Linear frequency modulation with precise sweep rate and bandwidth control
Electronic Warfare / Jamming - Fast frequency hopping, noise jamming, DRFM exciter
RF & Microwave Test Equipment - Vector signal generators, arbitrary waveform generators
Software-Defined Radio (SDR) - Frequency-agile local oscillator, direct IF synthesis
Satellite Communications - Agile LO for frequency-hopping spread spectrum
Quantum / Physics Research - Precision AOM/atom trap RF sources
Medical Imaging - MRI/ultrasound excitation waveform generation
ADI High-Speed DDS Family
| Part Number | SYSCLK | DAC | Package | Best For |
|---|---|---|---|---|
| AD9910 | 1 GSPS | 14-bit | 100-TQFP | Best SFDR, general purpose |
| AD9914 | 3.5 GSPS | 12-bit | 88-LFCSP | Highest speed, GHz outputs |
| AD9915 | 2.5 GSPS | 12-bit | 88-LFCSP | Lower power, sub-GHz |
| AD9912 | 1 GSPS | 14-bit | 64-LFCSP | Low phase noise, smaller |
Why Source AD9914BCPZ from Superb Automation?
RF Signal Chain BOM - AD9914 + clock source + output amplifier + filter + balun - one PO
High-Speed PCB Design - 3.5GHz impedance-controlled routing, LVDS clock distribution
QFN/BGA Assembly - 88-LFCSP with exposed pad reflow and X-ray verification
RF Test & Debug - Spectrum analyzer verification of SFDR and phase noise performance
25 Years Trusted - Electronic components + PCBA partner since 2000
Genuine Parts - Direct from authorized ADI channels, full lot traceability
Frequently Asked Questions
What is the AD9914BCPZ used for?
A 3.5GSPS Direct Digital Synthesizer with 12-bit DAC for radar LFM/chirp, electronic warfare jamming, RF test equipment, and software-defined radio. It generates precision GHz-range RF signals with sub-Hz resolution and nanosecond frequency switching.
What is the frequency resolution of AD9914?
The 48-bit frequency tuning word at 3.5GSPS gives a resolution of 3.5 GHz / 2^48 ≈ 12.4 uHz. This is far below the phase noise floor of any practical clock source — effectively infinite resolution for all real-world applications.
Do I need an external 3.5GHz clock source?
No. The AD9914 includes an integrated REFCLK PLL with programmable multiplier. Input a lower-frequency reference (e.g., 100-3500MHz), and the on-chip PLL generates the 3.5GSPS system clock. This greatly simplifies the external clock design.
How fast can AD9914 switch frequencies?
Frequency changes take effect on the next SYSCLK edge — ~285 ps at 3.5GSPS. This is true nanosecond-scale switching, compared to microseconds-to-milliseconds for PLL-based synthesizers. Multiple profile registers allow pre-programmed parameters for deterministic instantaneous switching.
How does AD9914 compare to AD9915?
AD9914 = 3.5GSPS (fastest). AD9915 = 2.5GSPS (lower power, lower cost). Same 12-bit DAC, 48-bit FTW, 88-LFCSP package, and register map. AD9914 for >1.4GHz output; AD9915 for sub-GHz. Pin-compatible package allows board reuse between the two.
