AD9915BCPZ
Brand: ADI
The AD9915BCPZ is a 2.5 GSPS Direct Digital Synthesizer (DDS) with an integrated 12-bit DAC, capable of generating frequency-agile analog sinusoidal outputs up to 1.0 GHz. With 135 pHz frequency tuning resolution, −128 dBc/Hz phase noise, 32-bit parallel datapath, and automatic linear/nonlinear frequency sweeping, it is the premier choice for agile LO synthesis, FMCW radar chirp generation, and high-performance test and measurement equipment.
Product Specifications
Analog Devices Inc. — 12-Bit DAC, 135 pHz Tuning Resolution
Key Performance Highlights
Internal Clock Speed
2.5 GSPS
Frequency Tuning Resolution
135 pHz
Phase Noise @ 1 kHz Offset
−128 dBc/Hz
Wideband SFDR
< −57 dBc
DAC Resolution
12-bit
Frequency/Phase Profiles
8 Programmable
Technical Specifications
| Manufacturer | Analog Devices Inc. |
| Part Number | AD9915BCPZ |
| Mouser Part # | 584-AD9915BCPZ |
| Type | Direct Digital Synthesizer (DDS) |
| Internal Clock Speed | 2.5 GSPS |
| DAC Resolution | 12-bit (integrated) |
| Frequency Tuning Resolution | 135 pHz (32-bit); 64-bit capable via programmable modulus |
| Phase Tuning Resolution | 16-bit |
| Amplitude Scaling | 12-bit |
| Phase Noise | −128 dBc/Hz @ 1 kHz offset (978 MHz) |
| Wideband SFDR | < −57 dBc |
| Frequency/Phase Profiles | 8 offset profiles |
| Data Interface | 32-bit parallel datapath; serial or parallel I/O control |
| Sweep Modes | Automatic linear and nonlinear frequency/phase/amplitude sweep |
| Supply Voltage | 1.8V (digital core) / 3.3V (analog, DAC) |
| Operating Temperature | −40°C ~ +85°C (extended industrial) |
| Package / Case | 88-LFCSP VQ (Lead Frame Chip Scale Package) |
| Output Frequency | Up to 1.0 GHz sinusoidal |
| Modulation Support | Polar modulation via 32-bit parallel port |
| RoHS Compliance | RoHS Compliant |
Product Description
The AD9915BCPZ uses advanced DDS technology with an internal high-speed, high-performance 12-bit DAC to form a digitally programmable, complete high-frequency synthesizer capable of generating frequency-agile analog output sinusoidal waveforms at up to 1.0 GHz.
It enables fast frequency hopping and ultra-fine tuning resolution — 64-bit capable using programmable modulus mode — along with fast phase and amplitude hopping. Frequency tuning and control words are loaded via a serial or parallel I/O port.
A user-defined linear sweep mode generates linear swept waveforms of frequency, phase, or amplitude — ideal for FMCW radar and chirp applications. The 32-bit parallel data input port supports high data rates for polar modulation schemes and fast reprogramming of phase, frequency, and amplitude tuning words.
Specified over the extended industrial temperature range (−40°C to +85°C), the AD9915BCPZ is packaged in a compact 88-lead LFCSP.
Key Applications
Agile LO Frequency Synthesis — Fast-hopping local oscillators for receivers & transmitters
FMCW Radar Chirp Generation — Linear/nonlinear swept-frequency sources
Programmable Clock Generator — Replace multiple fixed-frequency clock sources
Test & Measurement Equipment — Signal generators, spectrum analyzers, AWGs
Acousto-Optic Device Drivers — Precision frequency control for AOMs & AODs
Polar Modulator — High-speed 32-bit parallel modulation datapath
Fast Frequency Hopping — Secure communications, electronic warfare
Phase-Array Beamforming — Multi-channel coherent DDS arrays
Why Source AD9915BCPZ from Superb Automation?
✓RF System BOM Expertise — AD9915 + companion clock distribution, amplifiers, filters as a complete kit
✓High-Speed PCB Design — 2.5 GSPS clock routing, impedance control, LFCSP layout support
✓SMT Assembly + X-Ray — LFCSP/QFN reflow with void-detection X-ray inspection
✓DDS Application Knowledge — We understand LO synthesis, chirp generation, and clock distribution architectures
✓25 Years Trusted — Electronic components + PCBA partner since 2000
✓Genuine Parts — Direct from trusted channels, full lot traceability
Frequently Asked Questions
What is the AD9915BCPZ used for?
The AD9915BCPZ is a 2.5 GSPS Direct Digital Synthesizer (DDS) with integrated 12-bit DAC. It generates frequency-agile sine waves up to 1.0 GHz for agile LO synthesis, FMCW radar chirps, programmable clock generation, test & measurement equipment, acousto-optic device drivers, polar modulators, and fast frequency hopping systems.
What is the frequency tuning resolution of AD9915BCPZ?
135 picohertz (pHz) using the standard 32-bit tuning word. In programmable modulus mode, it supports 64-bit resolution for sub-pHz frequency steps — among the finest tuning resolution available in a commercial DDS.
What is the phase noise performance?
−128 dBc/Hz at 1 kHz offset when operating at 978 MHz output. Wideband SFDR is better than −57 dBc, providing excellent spectral purity for demanding RF applications.
Does AD9915BCPZ support frequency sweeping (chirp)?
Yes. The AD9915BCPZ supports automatic linear and nonlinear sweeping of frequency, phase, and amplitude. This makes it ideal for FMCW radar, scanning systems, and chirp-based test applications. Sweep parameters are user-programmable.
What power supplies does AD9915BCPZ require?
Dual supplies: 1.8V for the digital core and 3.3V for the analog/DAC sections. The device operates over the extended industrial temperature range (−40°C to +85°C) in an 88-lead LFCSP VQ package.