DAC38RF82_17 Datasheet, PDF (1/140 Pages) Texas Instruments – Dual-Channel, Differential-Output, 14-Bit, 9-GSPS, RF-Sampling DAC With JESD204B Interface, On-Chip PLL and Wide-Band Interpolation

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DAC38RF82, DAC38RF89
SLASEA6B – FEBRUARY 2017 – REVISED AUGUST 2017
DAC38RF8x Dual-Channel, Differential-Output, 14-Bit, 9-GSPS, RF-Sampling DAC With
JESD204B Interface, On-Chip PLL and Wide-Band Interpolation
1 Features
•1 14-Bit Resolution, 9-GSPS DAC with Multimode
Operation
– 16-Bit, Dual-Channel Data Mode
– Max Input Rate: 2.5-GSPS
– Wideband Digital Up-converter
– Interpolation:
1,2,4,6,8,10,12,16,18,20,24x
– 12-Bit, Dual-Channel Data Mode
– Max Input Rate: 3.33-GSPS
– Wideband Digital Up-converter
– Interpolation: 1,2,24x
– 8-Bit, Single-Channel Data Mode
– Max Input Rate: 9-GSPS
• JESD204B Interface
– Subclass 1 for Multichip Synchronization
– Maximum Lane Rate: 12.5 Gbps
• Differential Output
– Supports DC Coupling
– RF Full-Scale Output Power (with 2:1 Balun):
3 dBm at 2.14 GHz
• Internal PLL and VCO with bypass
– DAC38RF82: f_C(VCO) = 5.9 or 8.9 GHz
– DAC38RF89: f_C(VCO) = 5 or 7.5 GHz
• Power Supplies: -1.8 V, 1.0 V, 1.8 V
• Package: 10 x 10 mm BGA, 0.8mm Pitch,
144-Balls
In dual channel operation, the input interface is
capable of data rates up to 3.33 GSPS at 12-bits and
2.5 GSPS at 16-bits resolution without interpolation.
When used as a complex baseband transmitter with
interpolation modes from 2x to 24x, the DAC38RF82
or DAC38RF89 is capable of synthesizing wideband
signals up to 2 GHz bandwidth with 16-bit input
resolution and 2.66 GHz bandwidth with 12-bit input
resolution.
The 8-bit mode allows an input at the full 9 GSPS
maximum DAC sample rate and can synthesize
wideband signals from 0 to 4.5 GHz.
An optional low jitter PLL/VCO simplifies the DAC
clock generation by allowing use of a lower frequency
reference clock. DAC38RF82 and DAC38RF89
support different VCO frequency ranges, summarized
in Device Comparison Table.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
DAC38RF82
DAC38RF89
FCBGA (144)
10.0 mm x 10.0 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
32x6 MHz 256-QAM carriers
2 Applications
• Arbitrary Waveform Generators
• Radar and Electronic Warfare
• Communications Test Equipment
• Direct RF Synthesis for DOCSIS 3.0/3.1
• Microwave Backhaul
3 Description
The DAC38RF82 and DAC38RF89 are high
performance, wide bandwidth RF-sampling digital-to-
analog (DACs) that are capable of dual channel input
data rate up to 3.33 GSPS or single-channel
operation with 8-bits up to 9-GSPS. The devices have
a low power JESD204B Interface with up to 8 lanes,
with a maximum bit rate of 12.5 Gbps.
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.