DAC1627D1G25 - Dual 16-bit DAC with LVDS Interface

The DAC1627D1G25 from NXP is a 16-bit dual-channel Digital-to-Analog Converter (DAC) with selectable 2x, 4x and 8x interpolating filters optimized for multi-carrier and broad band wireless transmitters at sample rates up to 1.25 Gsps. Supplied from 3.3 V and 1.8 V power sources, it integrates a differential scalable output current up to 31.8 mA.

The mixer frequency is set by a high resolution 40-bit Numerically Controlled Oscillator (NCO). High resolution internal gain, phase and offset control provide outstanding image and LO rejection at the system analog modulator output.

An inverse (sin x)/x function ensures controlled flatness at the DAC output. The LVDS DDR receiver interface allows a high data bandwidth (312.5 MS/sec) at the input.

DAC1627D1G25 Features & Benefits

Dual 16-bit resolution
1.25 Gsps maximum update rate
Selectable x2, x4 and x8 interpolation filters
Very low noise capacitor-free integrated Phase Locked Loop (PLL)
Embedded Numerically Controlled Oscillator (NCO) with 40-bit programmable frequency
Embedded complex modulator
1.8 V and 3.3 V power supplies
LVDS DDR compatible input interface with on-chip 100 Ω terminations
LVDS DDR input clock up to 312.5 MHz
LVDS or LVPECL compatible DAC clock
Interleaved or folded I and Q data input mode
Synchronization of multiple DAC devices
3 or 4 wires mode SPI interface
Differential scalable output current from 6.95...31.8 mA
External analog offset control (10-bit auxiliary DACs)
High resolution internal digital gain and offset control
Internal phase correction
Inverse (sin x) / x function
Power-down mode and sleep mode
On-chip 1.25 V reference