Overview
The AD9789BBCZ, manufactured by Analog Devices Inc., is a highly integrated and flexible electronic component that combines a QAM encoder, interpolator, and upconverter with a high-performance 14-bit RF digital-to-analog converter (DAC). This device operates at a sampling rate of 2400 MSPS and supports up to four channels of complex data. It is designed for applications requiring direct synthesis of multiple DOCSIS- or DVB-C-compatible channels.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 14 bits |
| Sampling Rate | 2400 MSPS |
| Number of Channels | Up to 4 channels |
| Power Consumption | 1.6 W |
| Supply Voltages | 1.5 V, 1.8 V, 3.3 V |
| Operating Temperature | -40 °C to 85 °C |
| Package Type | 164-ball Chip Scale Package Ball Grid Array (CSPBGA) |
| Data Bus Widths | 4, 8, 16, or 32 bits |
| QAM Constellation Sizes | 16, 32, 64, 128, and 256 |
Key Features
- On-chip and bypassable 4 QAM encoders with SRRC filters
- 16× to 512× interpolation and rate converters
- Support for direct to RF synthesis with fS mix mode
- Built-in self-test (BIST) support and input connectivity check
- Internal random number generator
- Flexible digital interface supporting real or complex data
- Serial peripheral interface (SPI) for device configuration and status register readback
- 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 sampling rate of the AD9789BBCZ?
The AD9789BBCZ operates at a sampling rate of 2400 MSPS.
- How many channels does the AD9789BBCZ support?
The AD9789BBCZ supports up to four channels of complex data.
- What are the supported QAM constellation sizes?
The AD9789BBCZ supports QAM constellation sizes of 16, 32, 64, 128, and 256.
- What is the power consumption of the AD9789BBCZ?
The power consumption of the AD9789BBCZ is 1.6 W.
- What are the supply voltages for the AD9789BBCZ?
The AD9789BBCZ operates from 1.5 V, 1.8 V, and 3.3 V supplies.
- What type of package does the AD9789BBCZ come in?
The AD9789BBCZ is supplied in a 164-ball Chip Scale Package Ball Grid Array (CSPBGA).
- Does the AD9789BBCZ require special power sequencing?
No, the AD9789BBCZ does not require special power sequencing.
- What is the purpose of the built-in self-test (BIST) in the AD9789BBCZ?
The built-in self-test (BIST) in the AD9789BBCZ is used for device testing and input connectivity checks.
- What types of data can the AD9789BBCZ's digital interface accept?
The AD9789BBCZ's digital interface can accept real or complex data.
- What is the function of the serial peripheral interface (SPI) in the AD9789BBCZ?
The serial peripheral interface (SPI) is used for device configuration and status register readback.
