DAC34SH84 Datasheet, PDF (1/77 Pages) Texas Instruments – Quad-Channel, 16-Bit, 1.5 GSPS Digital-to-Analog Converter (DAC)

DAC34SH84
www.ti.com
SLAS808B – FEBRUARY 2012 – REVISED JULY 2012
Quad-Channel, 16-Bit, 1.5 GSPS Digital-to-Analog Converter (DAC)
Check for Samples: DAC34SH84
FEATURES
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• Low Power: 1.8 W at 1.5 GSPS, Full Operating
Condition
• Multi-DAC Synchronization
• Selectable 2×, 4×, 8×, 16× Interpolation Filter
– Stop-Band Attenuation > 90 dBc
• Flexible On-Chip Complex Mixing
– Two Independent Fine Mixers With 32-Bit
NCOs
– Power-Saving Coarse Mixers: ±n × f_S / 8
• High-Performance, Low-Jitter Clock-
Multiplying PLL
• Digital I and Q Correction
– Gain, Phase and Offset
• Digital Inverse Sinc Filters
• 32-Bit DDR Flexible LVDS Input Data Bus
– 8-Sample Input FIFO
– Supports Data Rates up to 750 MSPS
– Data Pattern Checker
– Parity Check
• Temperature Sensor
• Differential Scalable Output: 10 mA to 30 mA
• 196-Ball, 12-mm × 12-mm BGA
DESCRIPTION
The DAC34SH84 is a very low-power, high-dynamic
range, quad-channel, 16-bit digital-to-analog
converter (DAC) with a sample rate as high as
1.5 GSPS.
The device includes features that simplify the design
of complex transmit architectures: 2× to 16× digital
interpolation filters with over 90 dB of stop-band
attenuation simplify the data interface and
reconstruction filters. Independent complex mixers
allow flexible carrier placement. A high-performance
low-jitter clock multiplier simplifies clocking of the
device without significant impact on the dynamic
range. The digital quadrature modulator correction
(QMC) enables complete IQ compensation for gain,
offset and phase between channels in direct
upconversion applications.
Digital data is input to the device through a 32-bit
wide LVDS data bus with on-chip termination. The
wide bus allows the processing of high-bandwidth
signals. The device includes a FIFO, data pattern
checker, and parity test to ease the input interface.
The interface also allows full synchronization of
multiple devices.
The device is characterized for operation over the
entire industrial temperature range of –40°C to 85°C
and is available in a 196-ball, 12-mm × 12-mm, 0.8-
mm pitch BGA package.
APPLICATIONS
• Cellular Base Stations
• Diversity Transmit
• Wideband Communications
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The DAC34SH84 low-power, high-bandwidth support,
superior crosstalk, high dynamic range, and features
are an ideal fit for next-generation communication
systems.
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
ADVANCE INFORMATION concerns new products in the sampling
or preproduction phase of development. Characteristic data and
other specifications are subject to change without notice.
Copyright © 2012, Texas Instruments Incorporated