Overview
The DAC3482IZAY is a dual-channel, 16-bit digital-to-analog converter (DAC) produced by Texas Instruments. It boasts a high sample rate of up to 1.25 GSPS, making it suitable for high-performance applications. This device is characterized by its very low power consumption of 900 mW at full operating conditions and its ability to simplify complex transmit architectures. The DAC3482 features advanced functionalities such as multi-DAC synchronization, selectable interpolation filters, and a high-performance low-jitter clock multiplying PLL. It is designed to operate over the industrial temperature range of –40°C to 85°C and is available in compact package options, including an 88-pin 9x9mm WQFN-MR and a 196-ball 12x12mm NFBGA package.
Key Specifications
| Specification | Value | Unit |
|---|---|---|
| Sample Rate | Up to 1.25 | GSPS |
| Resolution | 16-bit | |
| Power Consumption | 900 mW | |
| Interpolation Filter | 2x, 4x, 8x, 16x | |
| Stop-Band Attenuation | > 90 dBc | |
| Clock Multiplying PLL Jitter | Low jitter | |
| Temperature Range | –40°C to 85°C | |
| Package Options | 88-pin WQFN-MR, 196-ball NFBGA | |
| Output Current Range | 10 mA to 30 mA |
Key Features
- Very low power consumption: 900 mW at 1.25 GSPS
- Multi-DAC synchronization
- Selectable 2x, 4x, 8x, 16x interpolation filters with over 90 dB of stop-band attenuation
- Flexible on-chip complex mixing with a 32-bit NCO and power-saving coarse mixer
- High-performance, low-jitter clock multiplying PLL
- Digital Quadrature Modulator Correction (QMC) for gain, phase, offset, and group delay correction
- Digital inverse sinc filter
- Flexible LVDS input data bus with word- or byte-wide interface, 8-sample input FIFO, data pattern checker, and parity check
- Temperature sensor
- Differential scalable output: 10 mA to 30 mA
- Multiple package options: 88-pin 9x9mm WQFN-MR and 196-ball 12x12mm NFBGA
Applications
- Cellular base stations
- Diversity transmit systems
- Wideband communications
Q & A
- What is the maximum sample rate of the DAC3482?
The DAC3482 has a maximum sample rate of up to 1.25 GSPS.
- What is the resolution of the DAC3482?
The DAC3482 is a 16-bit digital-to-analog converter.
- How much power does the DAC3482 consume at full operating conditions?
The DAC3482 consumes 900 mW of power at full operating conditions.
- What types of interpolation filters are available on the DAC3482?
The DAC3482 offers selectable 2x, 4x, 8x, and 16x interpolation filters.
- What is the stop-band attenuation of the interpolation filters?
The interpolation filters have a stop-band attenuation of over 90 dBc.
- Does the DAC3482 support multi-DAC synchronization?
Yes, the DAC3482 supports multi-DAC synchronization.
- What is the temperature range for the DAC3482?
The DAC3482 operates over the industrial temperature range of –40°C to 85°C.
- What package options are available for the DAC3482?
The DAC3482 is available in an 88-pin 9x9mm WQFN-MR package and a 196-ball 12x12mm NFBGA package.
- What is the range of the differential scalable output current?
The differential scalable output current ranges from 10 mA to 30 mA.
- What are some common applications for the DAC3482?
The DAC3482 is commonly used in cellular base stations, diversity transmit systems, and wideband communications.
