The MAX19692 12-bit, 2.3Gsps multiplexed digital-to-analog
converter (DAC) enables digital synthesis of high-frequency
and wideband signals in baseband and higher Nyquist zones. It has
been optimized for wideband communications and radar
applications. It has excellent spurious and noise performance
and can be used for synthesis of wideband signals
in the frequency range from DC to more than 2GHz. The
2.3Gsps update rate allows digital generation of signals
with more than 1GHz bandwidth. The device synthesizes signals with excellent gain flatness and high SNR in the first three Nyquist zones directly, reducing the number of upconversion stages needed in a radio transmitter. With its unique ability
to generate broadband signals over a wide frequency
range, the MAX19692 enables ultra-high data rate wireless
modems and multistandard software radio transmitters.
The MAX19692 features an update rate up to 2.3Gsps, and
has four 12-bit multiplexed low-voltage differential signaling
(LVDS) input ports that operate up to 575MHz. The
device accepts a clock at the DAC update rate that can
be either a sine wave or a square wave. The input data
rate is 1/4 the DAC update rate. The MAX19692 provides
an LVDS data clock output to simplify interfacing to FPGA or ASIC devices.
The MAX19692 is a current-steering DAC with an integrated,
self-calibrated 50 differential output termination
to ensure optimum dynamic performance. The
MAX19692 operates from 3.3V and 1.8V power supplies
and consumes 760mW at 1.0Gsps.
Key Features
Applications/Uses
Industry-Leading Dynamic Performance
SFDR = 68dBc at fOUT = 1200MHz
Noise Density = -162dBm/Hz at 200MHz
1GHz Signal Bandwidth
High SNR and Exceptional Gain Flatness in Nyquist Zones 1, 2, 3
4:1 Multiplexed LVDS Inputs (Up to 575MHz)
Internal 50 Differential Output Termination
Low Power: 760mW (fCLK = 1000MHz)
Compact 11mm x 11mm 169 csBGA Package
Evaluation Kit Available (Order MAX19692EVKIT)
Arbitrary Waveform Generation (AWG)
Automatic Test Equipment
Digital IF Generation in X-Band Transmitters
Direct Digital Generation of Wideband RF Signals Up to 2GHz
Direct Digital Synthesis (DDS)
Radar Waveform and LO Signal Synthesis
Key Specifications:
High-Speed DACs
Part Number
Features
Resolution (Bits)
fCLK (Msps)
Number of Channels
SFDR @ fOUT (dBc)
INL (±LSB)
DNL (±LSB)
Output Current (mA)
PDISS (mW)
Interface
Supply Voltage (V)
EV-Kit
RoHS Available
Package
Smallest Available Package (max w/pins) (mm2)
MAX19692
•
High SNR & Exceptional Gain Flatness in Nyquist Zones 1, 2 and 3
differential output termination
to ensure optimum dynamic performance. The
MAX19692 operates from 3.3V and 1.8V power supplies
and consumes 760mW at 1.0Gsps.