Overview
The AD9789BBCRL, produced by Analog Devices Inc., is a highly integrated and flexible QAM encoder/interpolator/upconverter combined with a high-performance, 2400 MSPS, 14-bit RF digital-to-analog converter (DAC). This component is designed to support a wide range of applications in broadband communications and wireless infrastructure. It features a flexible digital interface that can accept up to four channels of complex data, making it suitable for DOCSIS 3.0 and DVB-C compatible systems.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 14-bit |
| Sample Rate | 2400 MSPS |
| Data Bus Width | 4, 8, 16, or 32 bits |
| Supply Voltages | 1.5 V, 1.8 V, 3.3 V |
| Power Consumption | 1.6 W (IFS = 20 mA, fDAC = 2.4 GHz, LVDS interface) |
| Package Type | 164-ball Chip Scale Package Ball Grid Array (CSPBGA) |
| Package Dimensions | 12mm x 12mm x 1.22mm |
| QAM Constellation Sizes | 16, 32, 64, 128, 256 |
| Interpolation Factors | 16× to 512× |
| Interface | Serial Peripheral Interface (SPI) for device configuration and status register readback |
Key Features
- On-chip and bypassable 4 QAM encoders with SRRC filters
- Support for a wide range of baud rates with a fixed DAC clock
- Digital upconverter capable of placing channels from 0 to 0.5 × fDAC
- Direct to RF synthesis support with fS mix mode
- Built-in self-test (BIST) support and internal random number generator
- Flexible digital interface configurable for real or complex data
- No special power sequencing required; clock receiver powers up muted to prevent start-up noise
Applications
- Broadband communications systems
- Cable Modem Termination Systems (CMTS)
- Digital Video Broadcasting-Cable (DVB-C)
- Cellular infrastructure
- Point-to-point wireless systems
Q & A
- What is the resolution and sample rate of the AD9789BBCRL? The AD9789BBCRL has a 14-bit resolution and a sample rate of 2400 MSPS.
- What are the supported QAM constellation sizes? The AD9789BBCRL supports QAM constellation sizes of 16, 32, 64, 128, and 256.
- What are the possible data bus widths for the AD9789BBCRL? The data bus width can be configured for 4, 8, 16, or 32 bits.
- What are the supply voltages for the AD9789BBCRL? The component operates from 1.5 V, 1.8 V, and 3.3 V supplies.
- What is the power consumption of the AD9789BBCRL? The power consumption is 1.6 W (IFS = 20 mA, fDAC = 2.4 GHz, LVDS interface).
- What type of package does the AD9789BBCRL come in? It is supplied in a 164-ball Chip Scale Package Ball Grid Array (CSPBGA).
- Does the AD9789BBCRL support direct to RF synthesis? Yes, it supports direct to RF synthesis with fS mix mode.
- What interfaces are available for device configuration? The AD9789BBCRL includes a Serial Peripheral Interface (SPI) for device configuration and status register readback.
- What are some of the key applications of the AD9789BBCRL? Key applications include broadband communications systems, CMTS, DVB-C, cellular infrastructure, and point-to-point wireless systems.
- Does the AD9789BBCRL require special power sequencing? No, special power sequencing is not required; the clock receiver powers up muted to prevent start-up noise.
