AD9775BSV

Digital To Analog Converters Overview

The AD9775BSV is a dual-channel, 14-bit digital-to-analog converter (DAC) from the TxDAC+ family. It supports an input data rate of up to 160 MSPS and delivers a maximum DAC update rate of 400 MSPS. The device integrates selectable 2×, 4×, or 8× interpolation filters and programmable channel gain/offset controls. It operates on a single 3.3 V supply with typical power dissipation of 1.2 W. Key specifications include an SFDR of −71 dBc at 2 MHz to 35 MHz and an internal 1.2 V voltage reference. The component is housed in an 80-lead thin quad flat package with an exposed pad (TQFP_EP).

Digital To Analog Converters Feature Summary

• 14-bit resolution with 400 MSPS maximum DAC output update rate.
• Selectable 2×, 4×, or 8× interpolating half-band filters.
• Supports fS/2, fS/4, and fS/8 digital quadrature modulation with image rejection.
• Direct IF transmission mode for frequencies above 70 MHz.
• Programmable channel gain adjustment (6 dB range) and offset control.

Digital To Analog Converters Applications

• Analog quadrature modulation architectures.
• 3G, multicarrier GSM, TDMA, and CDMA wireless systems.
• Broadband wireless and point-to-point microwave radios.
• Instrumentation and automatic test equipment (ATE).

Digital To Analog Converters Procurement Notes

Verify the specific suffix 'BSV' against the manufacturer's current ordering guide to confirm package type and temperature range. Ensure compatibility with the required 80-lead TQFP_EP footprint. Check for moisture sensitivity levels and recommended soldering profiles prior to assembly.

Digital To Analog Converters Selection Notes

Select this component for applications requiring high linearity and flexible digital upconversion. The integrated interpolation filters reduce host processor load and simplify reconstruction filter design. Verify that the system clock interface supports the required differential or single-ended inputs and that the 3.3 V single-supply operation aligns with the board power architecture.

Digital To Analog Converters Part Context

The AD9775 belongs to the AD977x family of pin-compatible, high-performance interpolating DACs. This family shares a common serial peripheral interface (SPI) for register configuration and offers similar programmability features across different resolution and speed variants within the series.

Digital To Analog Converters Replacement Considerations

Other members of the AD977x family are pin-compatible. Verify if alternative models offer higher speeds or different resolutions suitable for the specific application requirements while maintaining the same package form factor.