Overview
The AD9122SCPZ-EP 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+ series and is designed for high-performance, direct conversion transmit applications. It features a sample rate of up to 1130 MSPS, enabling multicarrier generation up to the Nyquist frequency. The AD9122SCPZ-EP includes advanced features such as integrated interpolators, complex modulators, and gain, dc offset, and phase adjustments for sideband suppression. It is optimized for wireless infrastructure, digital high or low IF synthesis, and wideband communications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Bits | 16 | |
| Number of D/A Converters | 2 | |
| Sample Rate | Up to 1130 MSPS | |
| Settling Time | 20 ns (Typ) | |
| Output Type | Current - Unbuffered | |
| Differential Output | Yes | |
| Data Interface | LVDS - Parallel | |
| Reference Type | External, Internal | |
| Voltage - Supply, Analog | 3.13 V ~ 3.47 V | |
| Voltage - Supply, Digital | 1.71 V ~ 1.89 V | |
| INL/DNL (LSB) | ±3.7, ±2.1 | |
| Architecture | Current Source | |
| Operating Temperature | -55°C ~ 105°C | |
| Package / Case | 72-LFCSP-VQ (10x10) | |
| Power Dissipation | 1.5 W at 1.2 GSPS, 800 mW at 500 MSPS |
Key Features
- Flexible LVDS interface allowing word, byte, or nibble load.
- Integrated 1x/2×/4×/8× interpolator/complex modulator for carrier placement anywhere in the DAC bandwidth.
- Gain, dc offset, and phase adjustment for sideband suppression.
- Multiple chip synchronization interfaces.
- High performance, low noise PLL clock multiplier.
- Digital inverse sinc filter.
- Low power consumption: 1.5 W at 1.2 GSPS, 800 mW at 500 MSPS.
- Adjustable full-scale output current from 8.7 mA to 31.7 mA.
- 72-lead, exposed paddle LFCSP package for reliable performance and easy integration.
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 (compliant with AQEC standard).
Q & A
- What is the sample rate of the AD9122SCPZ-EP?
The AD9122SCPZ-EP has a sample rate of up to 1130 MSPS.
- How many bits does the AD9122SCPZ-EP have?
The AD9122SCPZ-EP is a 16-bit DAC.
- What type of output does the AD9122SCPZ-EP provide?
The AD9122SCPZ-EP provides current - unbuffered output.
- What is the operating temperature range of the AD9122SCPZ-EP?
The operating temperature range is -55°C to +105°C.
- What is the power consumption of the AD9122SCPZ-EP at different sample rates?
The power consumption is 1.5 W at 1.2 GSPS and 800 mW at 500 MSPS.
- Does the AD9122SCPZ-EP support multiple chip synchronization?
Yes, it supports multiple chip synchronization interfaces.
- What is the package type of the AD9122SCPZ-EP?
The package type is 72-lead LFCSP (Lead Frame Chip Scale Package).
- What are some of the key applications of the AD9122SCPZ-EP?
Key applications include wireless infrastructure, digital high or low IF synthesis, transmit diversity, and wideband communications.
- Is the AD9122SCPZ-EP suitable for defense and aerospace applications?
Yes, it is suitable for defense and aerospace applications and complies with the AQEC standard.
- What is the data interface type of the AD9122SCPZ-EP?
The data interface is LVDS - Parallel.
