DAC34SH84_15 Datasheet, PDF (1/93 Pages) Texas Instruments – DAC34SH84 Quad-Channel, 16-Bit, 1.5 GSPS Digital-to-Analog Converter (DAC)

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DAC34SH84
SLAS808E – FEBRUARY 2012 – REVISED SEPTEMBER 2015
DAC34SH84 Quad-Channel, 16-Bit, 1.5 GSPS Digital-to-Analog Converter (DAC)
1 Features
•1 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 NFBGA
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 NFBGA package.
The DAC34SH84 low-power, high-bandwidth support,
superior crosstalk, high dynamic range, and features
are an ideal fit for next-generation communication
systems.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
DAC34SH84
NFBGA (196)
12.00 mm x 12.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
2 Applications
• Cellular Base Stations
• Diversity Transmit
• Wideband Communications
3 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.
Simplified Schematic
DAC34SH84
16-bit DAC
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RF
16-bit DAC
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16-bit DAC
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RF
16-bit DAC
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1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.