AD9121
RECOMMENDED FOR NEW DESIGNSDual, 14-Bit, 1230 MSPS, TxDAC+ Digital-to-Analog Converter
- Part Models
- 2
- 1ku List Price
- Starting From $37.88
Part Details
- Flexible LVDS interface allows word or byte load
- Single-carrier W-CDMA ACLR = 82 dBc at 122.88 MHz IF
- Analog output: adjustable 8.7 mA to 31.7 mA, RL = 25 Ω to 50 Ω
- Integrated 2×/4×/8× interpolator/complex modulator allows 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: 1.5 W at 1.2 GSPS, 800 mW at 500 MSPS, full operating conditions
- 72-lead, exposed paddle LFCSP
The AD9121 is a dual, 14-bit, high dynamic range digital-to-analog converter (DAC) that provides a sample rate of 1230 MSPS, permitting multicarrier generation up to the Nyquist frequency.
The AD9121 TxDAC+® includes features optimized for direct conversion transmit applications, including complex digital modulation, and gain and offset compensation. The DAC outputs are optimized to interface seamlessly with analog quadrature modulators, such as the ADL537x F-MOD series from Analog Devices, Inc. A 4-wire serial port interface provides for programming/readback of many internal parameters. Full-scale output current can be programmed over a range of 8.7 mA to 31.7 mA. The AD9121 comes in a 72-lead LFCSP.
PRODUCT HIGHLIGHTS
- Ultralow noise and intermodulation distortion (IMD) enable high quality synthesis of wideband signals from baseband to high intermediate frequencies (IF).
- Proprietary DAC output switching technique enhances dynamic performance.
- Current outputs are easily configured for various single-ended or differential circuit topologies.
- Flexible LVDS digital interface allows the standard 28-wire bus to be reduced to one-half of the width.
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
Documentation
Data Sheet 1
User Guide 1
Solutions Bulletin & Brochure 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD9121BCPZ | 72-Lead Lead Frame Chip Scale Package | ||
| AD9121BCPZRL | 72-Lead Lead Frame Chip Scale Package |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
| No Match Found | ||
|
Jun 26, 2023 - 23_0025 Package Outline Drawing and Data Sheet Revision for Select LFCSP Products in Amkor |
||
| AD9121BCPZ | PRODUCTION | |
| AD9121BCPZRL | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Clock Distribution Devices 3 | ||
| AD9513 | RECOMMENDED FOR NEW DESIGNS | 800 MHz Clock Distribution IC, Dividers, Delay Adjust, Three Outputs |
| AD9514 | RECOMMENDED FOR NEW DESIGNS | 1.6 GHz Clock Distribution IC, Dividers, Delay Adjust, Three Outputs |
| AD9515 | RECOMMENDED FOR NEW DESIGNS | 1.6 GHz Clock Distribution IC, Dividers, Delay Adjust, Two Outputs |
| Clock Generation Devices 3 | ||
| AD9510 | RECOMMENDED FOR NEW DESIGNS | 1.2 GHz Clock Distribution IC, PLL Core, Dividers, Delay Adjust, Eight Outputs |
| AD9511 | RECOMMENDED FOR NEW DESIGNS | 1.2 GHz Clock Distribution IC, PLL Core, Dividers, Delay Adjust, Five Outputs |
| AD9512 | RECOMMENDED FOR NEW DESIGNS | 1.2 GHz Clock Distribution IC, Two 1.6 GHz Inputs, Dividers, Delay Adjust, Five Outputs |
| High Voltage Op Amps ≥12V 1 | ||
| AD8022 | PRODUCTION | Dual High Speed, Low Noise Op Amp |
| I/Q Demodulators with Integrated LO 1 | ||
| ADL5385 | RECOMMENDED FOR NEW DESIGNS | 30 MHz TO 2200 MHz Quadrature Modulator |
| I/Q Modulators 11 | ||
| AD8345 | PRODUCTION | 140 MHz to 1000 MHz Quadrature Modulator |
| AD8346 | PRODUCTION | 2.5 GHz Direct Conversion Quadrature Modulator |
| AD8349 | PRODUCTION | 700 MHz TO 2.7 GHz Direct Up-Conversion Quadrature Modulator |
| ADL5370 | PRODUCTION | 300 MHz TO 1000 MHz Quadrature Modulator |
| ADL5371 | RECOMMENDED FOR NEW DESIGNS | 500 MHz TO 1500 MHz Quadrature Modulator |
| ADL5372 | PRODUCTION | 1500 MHz TO 2500 MHz Quadrature Modulator |
| ADL5373 | PRODUCTION | 2300 MHz TO 3000 MHz Quadrature Modulator |
| ADL5374 | Obsolete | 3000 MHz TO 4000 MHz Quadrature Modulator |
| ADL5375 | PRODUCTION | 400 MHz TO 6 GHz Broadband Quadrature Modulator |
| ADL5386 | Obsolete | 50 MHz to 2200 MHz Quadrature Modulator with Integrated Detector and VVA |
| ADRF6701 | Obsolete | 400 MHz to 1250 MHz Quadrature Modulator with 750 MHz to 1150 MHz Fractional-N PLL and Integrated VCO |
| I/Q Modulators with Integrated LO 3 | ||
| ADRF6702 | Obsolete | 1200 MHz to 2400 MHz Quadrature Modulator with 1550 MHz to 2150 MHz Fractional-N PLL & Integrated VCO |
| ADRF6703 | Obsolete | 1550 MHz to 2650 MHz Quadrature Modulator with 2100 MHz to 2600 MHz Fractional-N PLL & Integrated VCO |
| ADRF6704 | Obsolete | 2050 MHz to 3000 MHz Quadrature Modulator with 2500 MHz to 2900 MHz Fractional-N PLL & Integrated VCO |
| Precision Op Amps (Vos ≤1mV & TCVos ≤2uV/C) 1 | ||
| ADA4841-2 | PRODUCTION | Low Power, Low Noise and Distortion, Rail-to-Rail Output Amplifier |
Evaluation Kits
High Speed Controller Board
Resources
Software
AD9121 Evaluation Board
Resources
FPGA Based Data Capture Kit