Overview
The AD9857ASTZ, produced by Analog Devices Inc., is a highly integrated, high-performance quadrature digital upconverter. This device combines a direct digital synthesizer (DDS), a 14-bit digital-to-analog converter (DAC), clock multiplier circuitry, digital filters, and other DSP functions on a single chip. It is designed to serve as a universal I/Q modulator, agile upconverter, single-tone DDS, or interpolating DAC, making it ideal for various communications applications where cost, size, power dissipation, and dynamic performance are critical.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Frequency Range | 5 MHz to 200 MHz | |
| DAC Resolution | 14-bit | |
| DDS Frequency Tuning Word | 32-bit | |
| Internal Clock Rate | 200 MSPS | |
| Supply Voltage | 3.3 V ± 5% | V |
| Power Consumption | 650 mW (typical) | mW |
| Operating Temperature Range | −40°C to +85°C | °C |
| Package Type | 80-LQFP (14x14) |
Key Features
- Highly integrated solution combining DDS, DAC, clock multiplier, and digital filters on a single chip.
- Excellent dynamic performance with low phase noise and sideband suppression.
- Flexible frequency generation capabilities with a 32-bit frequency tuning word.
- Low power consumption, typically 650 mW.
- Operates over an extended industrial temperature range of −40°C to +85°C.
- RoHS3 compliant for environmental responsibility.
Applications
- Cable modem applications.
- Satellite communications.
- Wireless base stations.
Q & A
- What is the primary function of the AD9857ASTZ?
The AD9857ASTZ is a quadrature digital upconverter that integrates a direct digital synthesizer (DDS), a 14-bit digital-to-analog converter (DAC), and other DSP functions.
- What is the frequency range of the AD9857ASTZ?
The frequency range of the AD9857ASTZ is from 5 MHz to 200 MHz.
- What is the resolution of the DAC in the AD9857ASTZ?
The DAC resolution is 14-bit.
- What is the typical power consumption of the AD9857ASTZ?
The typical power consumption is 650 mW.
- What are the key applications of the AD9857ASTZ?
The key applications include cable modem, satellite communications, and wireless base stations.
- Is the AD9857ASTZ RoHS compliant?
Yes, the AD9857ASTZ is RoHS3 compliant.
- What is the operating temperature range of the AD9857ASTZ?
The operating temperature range is from −40°C to +85°C.
- What type of package does the AD9857ASTZ come in?
The AD9857ASTZ comes in an 80-LQFP (14x14) package.
- What is the internal clock rate of the AD9857ASTZ?
The internal clock rate is 200 MSPS.
- Does the AD9857ASTZ have any specific environmental compliance?
Yes, it is RoHS3 compliant for environmental responsibility.
