DAC1201D125 Datasheet, PDF (1/26 Pages) NXP Semiconductors – Dual 12-bit DAC, up to 125 Msps

DAC1201D125
Dual 12-bit DAC, up to 125 Msps
Rev. 01 — 27 November 2008
Product data sheet
1. General description
The DAC1201D125 is a dual-port, high-speed, 2-channel CMOS Digital-to-Analog
Converter (DAC), optimized for high dynamic performance with low power dissipation.
Supporting an update rate of up to 125 Msps, the DAC1201D125 is suitable for Direct IF
applications.
Separate write inputs allow data to be written to the two DAC ports independently of one
another. Two separate clocks control the update rate of each DAC port.
The DAC1201D125 can interface two separate data ports or one single interleaved
high-speed data port. In Interleaved mode, the input data stream is demultiplexed into its
original I and Q data and latched. The I and Q data is then converted by the two DACs and
updated at half the input data rate.
Each DAC port has a high-impedance differential current output, suitable for both
single-ended and differential analog output configurations.
The DAC1201D125 is pin compatible with the AD9765, DAC2902 and DAC5662.
2. Features
I Dual 12-bit resolution
I 125 Msps update rate
I Single 3.3 V supply
I Dual-port or Interleaved data modes
I 1.8 V, 3.3 V and 5 V compatible digital
inputs
I Internal and external reference
I 2 mA to 20 mA full-scale output current
I Typical 185 mW power dissipation
I 16 mW power-down
I SFDR: 81 dBc; f_o = 1 MHz; f_s = 52 Msps
I SFDR: 78 dBc; f_o = 10.4 MHz;
f_s = 78 Msps
I SFDR: 74 dBc; f_o = 1 MHz;
f_s = 52 Msps; −12 dBFS
I LQFP48 package
I Industrial temperature range of
−40 °C to +85 °C
3. Applications
I Quadrature modulation
I Medical/test instrumentation
I Direct IF applications
I Direct digital frequency synthesis
I Arbitrary waveform generator