Analog Devices, Inc. (NASDAQ: ADI) (Norwood, MA) has introduced a new quad IF D/A converter. The AD9144 4-channel, 16-bit, 2.8-GSPS D/A converter supports high data rates and ultra-wide signal bandwidth enabling emerging wideband and multiband wireless applications.
The combination of programmable interpolation rate, high sample rates and low power at 1.5 W gives system designers flexibility when choosing D/A converter output frequencies. This is especially helpful in meeting four- to six-carrier GSM transmission specifications and other communications standards. For six carrier GSM IMD, the AD9144 operates at 77 dBc at 75-MHZ IF. Operating with the on-chip PLL (phase-locked loop) at a D/A converter output frequency of 30 MHz, the AD9144 delivers a 76-dB adjacent-channel leakage ratio (ACLR) for four-carrier WCDMA applications.
The AD9144 includes integrated interpolation filters with selectable interpolation factors of 2, 4, and 8. The dual D/A converter data interface supports word and byte load allowing customers to reduce input pins on lower data rates to save board space, power, and cost.
The AD9144 features:
For more information visit analog.com.