Analog Devices introduced the AD9128 16-bit, 1.25-GSPS transmit D/A converter (DAC). The ADI AD9128 features a JESD204A-compatible serial input, on-chip 32-bit NCO (numerically-controlled oscillator), and 4-wire serial port interface. The AD9128′s high-speed serial interface simplifies and improves the data connection between the DAC and the FPGA in a typical system implementation. The AD9128 is sampling now. Production volume is expected in July. The chip is priced at $34.50 each in 1,000 quantities.
The AD9128 digital-to-analog converter is JESD204A-compliant. JESD204 defines a robust high-speed serial interface that is scalable and accommodates data rates in the multiple Gbps range. The AD9128 DAC offers high sampling rate and high dynamic range. The chip enables multicarrier generation up to the Nyquist frequency. It includes features like an on-chip 32-bit NCO (numerically-controlled oscillator), allowing flexible placement of the IF (intermediate frequency), complex digital modulation, and gain and offset compensation. A four-wire serial port interface provides for programming and read-back of many of the device’s internal parameters and functions. The AD9128 supports GSM, WCDMA, TD-SCDMA, CDMA2000, WiMAX, and LTE wireless communications standards.
The AD9128 high-speed D/A converter’s analog outputs are optimized to interface seamlessly with analog quadrature modulators, such as ADI’s ADL537x F-MOD series, and the ADCLK914 clock/data buffer that drives the AD9128 D/A converter with clock input jitter performance of 110 fs. Other complementary parts include the ADRF6702 quadrature modulator and ADRF6602 Rx mixer.
More info: Analog Devices, Inc.