AD9122BCPZ

AD9122 is a dual, 16bit, high dynamic range digital-to-analogue converter (DAC) that provides a sample rate of 1230 MSPS, permitting multicarrier generation up to the Nyquist frequency. The AD9122 TxDAC+® includes features optimized for direct conversion transmit applications, including complex digital modulation, and gain and offset compensation. The DAC outputs are optimized to interface seamlessly with analogue quadrature modulators, such as the ADL537x F-MOD series from Analog Devices, Inc. A 4-wire serial port interface provides for programming/readback of many internal parameters. Application includes wireless infrastructure W-CDMA, CDMA2000, TD-SCDMA, WiMAX, GSM, LTE, digital high or low IF synthesis, transmit diversity, wideband communications: LMDS/MMDS, point-to-point.

• Flexible LVDS interface allows word, byte, or nibble load
• Single-carrier W-CDMA ACLR is 82dBc at 122.88MHz IF
• Integrated 2×/4×/8× interpolator/complex modulator allow carrier placement anywhere in DAC bandwidth
• Gain, dc offset, and phase adjustment for sideband suppression
• Multiple chip synchronization interfaces, high performance, low noise PLL clock multiplier
• Digital inverse sinc filter
• Resolution is 16bits (typ, TMIN to TMAX, AVDD33 = 3.3V)
• Integral nonlinearity (INL) is ±3.7LSB (typ, TMIN to TMAX, AVDD33 = 3.3V)
• Power supply rejection ratio (AVDD33) range from -0.3 to +0.3% FSR/V
• 72 lead LFCSP-VQ package, operating temperature range from -40°C to +85°C

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