Part # AD9789 datasheet

Part Manufacturer: Analog Devices

Analog Devices

Part Description: AD9789 (Rev. 0)

Part Details:

14-Bit, 2400 MSPS RF DAC with 4-Channel Signal Processing AD9789 FEATURES The on-chip rate converter supports a wide range of baud rates with a fixed DAC clock. The digital upconverter can place the DOCSIS 3.0 performance: 4 QAM carriers channels from 0 to 0.5 × f ACLR over full band (47 MHz to 1 GHz) DAC. This permits four contiguous -75 dBc @ f channels to be synthesized and placed anywhere from dc to fDAC/2. OUT = 200 MHz -72 dBc @ fOUT = 800 MHz (noise) The AD9789 includes a serial peripheral interface (SPI) for -67 dBc @ fOUT = 800 MHz (harmonics) device configuration and status register readback. The flexible Unequalized MER = 42 dB digital interface can be configured for data bus widths of 4, 8, On chip and bypassable 16, and 32 bits. It can accept real or complex data. 4 QAM encoders with SRRC filters, 16× to 512× interpolation, The AD9789 operates from 1.5 V, 1.8 V, and 3.3 V supplies for rate converters, and modulators a total power consumption of 1.6 W. It is supplied in a 164-ball Flexible data interface: 4, 8, 16, or 32 bits wide with parity chip scale package ball grid array for lower thermal impedance Power: 1.6 W (IFS = 20 mA, fDAC = 2.4 GHz, LVDS interface) and reduced package parasitics. No special power sequencing Direct to RF synthesis support with fS mix mode is required. The clock receiver powers up muted to prevent Built-in self-test (BIST) support start-up noise. Input connectivity check Internal random number generator PRODUCT HIGHLIGHTS APPLICATIONS 1. Highly integrated and configurable QAM mappers, inter- polators, and upconverters for direct synthesis of one to Broadband communications systems four DOCSIS- or DVB-compatible channels in a block. CMTS/DVB 2. Low noise and intermodulation distortion (IMD) perfor- Cellular infrastructure mance enable high quality synthesis of signals up to 1 GHz. Point-to-point wireless 3. Flexible data interface supports LVDS for improved SFDR GENERAL DESCRIPTION or CMOS input data for less demanding applications. The AD9789 is a flexible QAM encoder/interpolator/upconverter 4. Interface is configurable from 4-bit nibbles to 32-bit words combined with a high performance, 2400 MSPS, 14-bit RF digital- and can run at up to 150 MHz CMOS or 150 MHz LVDS to-analog converter (DAC). The flexible digital interface can double data rate (DDR).

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AD9789.pdf Datasheet