Dual-channel DAC targets 3G, 4G comm

Offered in a 64-pin QFN package, the 16-bit dual-channel 800-Msample/s DAC5688 D/A converter features enhanced performance to support existing 3G applications, including WCDMA and TD-SCDMA, and emerging 4G applications, including WiMAX and LTE. For an output frequency of 70 MHz, the device achieves 81-dBC ACLR for a single-carrier WCDMA application.

Features include a digital inverse SINC filter, a 2x to 32x clock multiplying PLL/VCO, and an optional frequency mixer with a 32-bit numerically controlled oscillator (NCO) that runs up to 800 MHz. The part’s dual CMOS data bus provides 250-Mbit/s input data transfer per DAC channel. Several input data options are available including dual-bus data, single-bus interleaved data, even and odd multiplexing at half-rate, and an input FIFO with either external or internal clock, which eases interface timing. ($29.95 ea/1,000—available now.)

Texas Instruments , Dallas , TX
Product Information Center 800-477-8924
http://www.ti.com