Overview
The AD9912ABCPZ, produced by Analog Devices Inc., is a high-performance direct digital synthesizer (DDS) integrated with a 14-bit digital-to-analog converter (DAC). This device is designed to generate high-frequency signals with exceptional precision and stability. It operates at an internal clock speed of up to 1 GSPS and can produce output frequencies directly up to 400 MHz. The AD9912ABCPZ is ideal for applications requiring agile frequency synthesis, low jitter clock generation, and high dynamic performance.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Internal Clock Speed | - | - | 1 GSPS | - | - |
| DAC Resolution | - | - | 14-bit | - | - |
| Frequency Tuning Word (FTW) | - | - | 48-bit | - | 4 μHz resolution |
| System Clock Input Frequency Range | 25 MHz | - | 1000 MHz | - | Accepts crystal or external reference clock |
| Output Frequency Range | - | - | Up to 400 MHz | - | Directly from internal clock |
| Temperature Range | -40°C | - | +85°C | - | Industrial temperature range |
| Phase Noise @ 250 MHz | -113 dBc/Hz | - | - | - | 10 Hz offset |
| Phase Noise @ 250 MHz | -133 dBc/Hz | - | - | - | 1 kHz offset |
Key Features
- Integrated 1 GSPS 14-bit DAC
- 48-bit frequency tuning word with 4 μHz resolution
- Flexible system clock input accepts either crystal or external reference clock
- On-chip low noise PLL REFCLK multiplier
- 2 SpurKiller channels for improved spectral purity
- Low jitter clock doubler for frequencies up to 750 MHz
- Programmable output divider for CMOS output
- Serial I/O control
- Software controlled power-down
- Available in two 64-lead LFCSP packages
Applications
- Agile LO frequency synthesis
- Low jitter, fine tune clock generation
- Test and measurement equipment
- Wireless base stations and controllers
- Secure communications
- Fast frequency hopping
Q & A
- What is the internal clock speed of the AD9912ABCPZ?
The internal clock speed of the AD9912ABCPZ is up to 1 GSPS. - What is the resolution of the integrated DAC?
The integrated DAC has a resolution of 14 bits. - What is the frequency tuning word resolution?
The frequency tuning word (FTW) has a resolution of 4 μHz. - What is the range of the system clock input frequency?
The system clock input frequency range is from 25 MHz to 1000 MHz. - What is the maximum output frequency directly from the internal clock?
The maximum output frequency directly from the internal clock is up to 400 MHz. - What is the operating temperature range of the AD9912ABCPZ?
The operating temperature range is from -40°C to +85°C. - What is the phase noise at 250 MHz with a 10 Hz offset?
The phase noise at 250 MHz with a 10 Hz offset is -113 dBc/Hz. - Does the AD9912ABCPZ support SpurKiller channels?
Yes, the AD9912ABCPZ supports 2 SpurKiller channels. - How is the power management controlled in the AD9912ABCPZ?
The power management is controlled via software. - In what packages is the AD9912ABCPZ available?
The AD9912ABCPZ is available in two 64-lead LFCSP packages.
