Overview
The AD9786BSVRL, produced by Analog Devices Inc., is a high-performance 16-bit digital-to-analog converter (DAC) designed for multicarrier communications architectures. It is part of the TxDAC+ product family, known for its exceptional linearity, noise, and intermodulation distortion performance. This DAC is optimized for synthesizing multicarrier transmit signals at intermediate frequencies (IFs) ranging from 100 to 300 MHz and beyond, allowing system designers to eliminate up-conversion stages and reduce overall system complexity and cost.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 16 bits | |||
| Input Data Rate | 200 MSPS | |||
| Interpolation Factors | 2×, 4×, 8× | |||
| Full-Scale Current | 10 | 20 | mA | |
| Analog Supply Voltage (AVDD) | 3.1 | 3.3 | 3.5 | V |
| Digital Supply Voltage (DRVDD) | 2.5 | V | ||
| Operating Temperature | -40 | 85 | °C | |
| Package Type | 80-Lead TQFP_EP | |||
| Intermodulation Distortion (IMD) | 90 dBc @ 10 MHz | |||
| Noise Spectral Density (NSD) | -164 dBm/Hz @ 10 MHz | |||
Key Features
- High-Speed Operation: Supports input data rates up to 200 MSPS.
- Selectable Interpolation Filters: 2×, 4×, and 8× interpolation factors to simplify data rate and output signal reconstruction filter requirements.
- Advanced Signal Processing: Includes on-chip voltage reference, multichip synchronization, and modulation modes for convenient bandwidth placement and sideband suppression.
- Flexible Clock Interface: Accepts various input types such as 1 V p-p sine wave, CMOS, and LVPECL in single-ended or differential mode.
- Low Power Operation: Full-scale current can be reduced, and a sleep mode is available for low power idle periods.
- Differential Current Output: Supports single-ended or differential applications with a nominal full-scale current from 10 mA to 20 mA.
Applications
The AD9786BSVRL is designed for use in multicarrier communications systems, particularly in third-generation base stations and other high-performance communication architectures. It is ideal for synthesizing multicarrier transmit signals at intermediate frequencies, thereby reducing the need for additional up-conversion stages and lowering overall system cost and complexity.
Q & A
- What is the resolution of the AD9786BSVRL DAC?
The AD9786BSVRL has a 16-bit resolution.
- What are the supported input data rates for the AD9786BSVRL?
The AD9786BSVRL supports input data rates up to 200 MSPS.
- What interpolation factors are available on the AD9786BSVRL?
The AD9786BSVRL offers 2×, 4×, and 8× interpolation factors.
- What is the full-scale current range of the AD9786BSVRL?
The full-scale current of the AD9786BSVRL ranges from 10 mA to 20 mA.
- What are the operating temperature ranges for the AD9786BSVRL?
The AD9786BSVRL operates within a temperature range of -40°C to +85°C.
- What package type is the AD9786BSVRL available in?
The AD9786BSVRL is available in an 80-Lead TQFP_EP package.
- What is the intermodulation distortion (IMD) performance of the AD9786BSVRL?
The AD9786BSVRL achieves an IMD of 90 dBc at 10 MHz.
- Does the AD9786BSVRL support multichip synchronization?
Yes, the AD9786BSVRL supports multichip synchronization to ease timing design requirements and optimize image reject transmit performance.
- What types of clock inputs does the AD9786BSVRL accept?
The AD9786BSVRL accepts clock inputs such as 1 V p-p sine wave, CMOS, and LVPECL in single-ended or differential mode.
- Does the AD9786BSVRL have low power operation modes?
Yes, the AD9786BSVRL allows for reduced full-scale current and has a sleep mode for low power idle periods.
