Analog Devices Inc. AD9146BCPZRL

Description
The AD9146 is a dual, 16-bit, high dynamic range digital-to-analog converter (DAC) that provides a sample rate of 1000 MSPS with nominal supplies and 1230 MSPS with increased supplies, permitting multicarrier generation up to the Nyquist frequency. The AD9146 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 analog quadrature modulators, such as the ADL537x F-MOD series from Analog Devices, Inc. A 3-wire serial port interface provides for programming/readback of many internal parameters. Full-scale output current can be programmed over a range of 8.7 mA to 31.7 mA. The AD9146 comes in a 48-lead LFCSP.

Features
Flexible LVDS interface allows byte or nibble load
Dual, 16-Bit, 1230 MSPS, TxDAC Digital-to-Analog Converter
Single-carrier W-CDMA ACLR= 80 dBc at 122.88 MHz IF
Analog output: adjustable 8.7 mA to 31.7 mA, RL = 250 to 500
Integrated 2x/4x interpolator/complex modulator allows carrier placement anywhere in the 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
Low power: 1.2 W at 1.0 GSPS, 800 mW at 500 MSPS, full operating conditions
48-lead, exposed paddle LFCSP

Applications
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