Features: 14-Bit Resolution, 160/400 MSPS Input/Output Data RateSelectable 2/4/8 Interpolating FilterProgrammable Channel Gain and Offset AdjustmentfS/4, fS/8 Digital Quadrature Modulation CapabilityDirect IF Transmission Mode for 70 MHz + IFsEnables Image Rejection ArchitectureFully Compatible SP...
AD9775: Features: 14-Bit Resolution, 160/400 MSPS Input/Output Data RateSelectable 2/4/8 Interpolating FilterProgrammable Channel Gain and Offset AdjustmentfS/4, fS/8 Digital Quadrature Modulation Capabilit...
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Parameter | With Respectto | Min | Max | Unit |
AVDD, DVDD, CLKVDD AVDD, DVDD, CLKVDD AGND, DGND, CLKGND REFIO, REFLO, FSADJ1/2 IOUTA, IOUTB P1B13P1B0, P2B13P2B0 DATACLK, PLL_LOCK CLK+, CLK, RESET LPF SPI_CSB, SPI_CLK, SPI_SDIO, SPI_SDO Junction Temperature Storage Temperature Lead Temperature (10 sec) |
AGND, DGND, CLKGND AVDD, DVDD, CLKVDD AGND, DGND, CLKGND AGND AGND DGND DGND CLKGND CLKGND DGND |
0.3 65 |
+4.0 +125 |
V
|
The AD9775 is the 14-bit member of the AD977x pin-compatible high performance, programmable 2*/4*/8* interpolating TxDAC+family. The AD977x family features a serial port interface (SPI) providing a high level of programmability, thus allowing for enhanced system-level options. These options include: select able 2*/4*/8* interpolation filters; fS/2, fS/4, or fS/8 digital
quadrature modulation with image rejection; a direct IF mode; programmable channel gain and offset control; programmable internal clock divider; straight binary or two's complement data interface; and a single-port or dual-port data interface.
The selectable 2*/4*/8* interpolation filters simplify the require-ments of the reconstruction filters while simultaneously enhancing the TxDAC+ family's pass-band noise/distortion performance.The independent channel gain and offset adjust registers allow the user to calibrate LO feedthrough and sideband suppression