Overview
The AD9122SCPZ-EP-RL is a dual, 16-bit, high dynamic range digital-to-analog converter (DAC) produced by Analog Devices Inc. This component is part of the TxDAC+® family and is optimized for direct conversion transmit applications, including complex digital modulation and gain and offset compensation. It supports a sample rate of up to 1230 MSPS, enabling multicarrier generation up to the Nyquist frequency. The AD9122SCPZ-EP-RL is particularly suited for defense and aerospace applications due to its compliance with the AQEC standard and its military temperature range of −55°C to +105°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Sample Rate | Up to 1230 | MSPS |
| Resolution | 16-bit | |
| Full-Scale Output Current | 8.7 mA to 31.7 mA | |
| DAC Clock Input (DACCLKP, DACCLKN) | 100 mV to 2000 mV (peak-to-peak) | |
| REFCLK Input (REFCLKP, REFCLKN) | 100 mV to 2000 mV (peak-to-peak) | |
| REFCLK Frequency (PLL Mode) | 1 GHz ≤ fVCO ≤ 2.1 GHz | |
| Serial Port Interface Clock Rate (SCLK) | Up to 40 MHz | |
| Package Type | 72-Lead Lead Frame Chip Scale Package (LFCSP) | |
| Temperature Range | −55°C to +105°C | |
| Power Consumption | 1.5 W at 1.2 GSPS, 800 mW at 500 MSPS |
Key Features
- Ultralow noise and intermodulation distortion (IMD) for high-quality synthesis of wideband signals from baseband to high intermediate frequencies (IF).
- Proprietary DAC output switching technique to enhance dynamic performance.
- Integrated 1x/2×/4×/8× interpolator/complex modulator allowing carrier placement anywhere in the DAC bandwidth.
- Gain, DC offset, and phase adjustment for sideband suppression.
- High performance, low noise PLL clock multiplier.
- Digital inverse sinc filter.
- Flexible LVDS digital interface.
- 4-wire serial port interface for programming/readback of internal parameters.
- Current outputs easily configured for various single-ended or differential circuit topologies.
Applications
- Wireless infrastructure: W-CDMA, CDMA2000, TD-SCDMA, WiMAX, GSM, LTE.
- Digital high or low IF synthesis.
- Transmit diversity.
- Wideband communications: LMDS/MMDS, point-to-point.
- Defense and aerospace applications.
Q & A
- What is the maximum sample rate of the AD9122SCPZ-EP-RL?
The maximum sample rate is up to 1230 MSPS.
- What is the resolution of the AD9122SCPZ-EP-RL?
The resolution is 16-bit.
- What is the full-scale output current range of the AD9122SCPZ-EP-RL?
The full-scale output current can be programmed over a range of 8.7 mA to 31.7 mA.
- What type of package does the AD9122SCPZ-EP-RL come in?
The component comes in a 72-Lead Lead Frame Chip Scale Package (LFCSP).
- What is the temperature range of the AD9122SCPZ-EP-RL?
The temperature range is −55°C to +105°C.
- What are some of the key applications of the AD9122SCPZ-EP-RL?
Key applications include wireless infrastructure, digital high or low IF synthesis, transmit diversity, wideband communications, and defense and aerospace applications.
- Does the AD9122SCPZ-EP-RL support multichip synchronization?
- What is the power consumption of the AD9122SCPZ-EP-RL at different sample rates?
The power consumption is 1.5 W at 1.2 GSPS and 800 mW at 500 MSPS.
- Is the AD9122SCPZ-EP-RL compliant with any specific standards for defense and aerospace applications?
- How can the internal parameters of the AD9122SCPZ-EP-RL be programmed or read back?
