TQ6124 Datasheet, PDF (1/9 Pages) TriQuint Semiconductor – 1 Gigasample/sec, 14-bit Digital-to-Analog Convertor

TRIQUINT
S E M I C O N D U C T O R, I N C .
The TQ6124 is a 14-bit monolithic digital-to-analog converter. The TQ6124
achieves conversion accuracy by using a segmented architecture, precision
current sources, and on-chip nichrome resistors. The only external
components required are an external reference and loop control amplifier.
The TQ6124 is ideally suited for applications in direct digital synthesis,
pixel generation for high-resolution monitors, broadband video generation,
and high-speed arbitrary waveform generators.
Figure 1. TQ6124 Block Diagram
LSBs
Intermediate Bits
MSBs
CLK NCLK D0 D1 D2 D3 D4 D5 D6
D7 D8 D9 D10 D11 D12 D13
Delay
Stages
Master
Latch
. . . _{S1 S2}
Segment
S14 S15 _Encoders
...
Slave
Latch
TQ6124
1 Gigasample/sec,
14-bit Digital-to-Analog
Convertor
Features
• 1Gs/s aggregate bandwidth
• 14-bit resolution
• RF front end
• ECL-compatible inputs
• 0.026% DC differential
non-linearity
• 0.035% DC integral non-linearity
• SFDR: 52 dBc @ F_OUT = 75 MHz
48 dBc @ F_OUT = 148 MHz
45 dBc @ F_OUT = 199 MHz
• 1.4 W power dissipation
• 44-pin ceramic QFP package
or die only
50 ohm R-2R Ladder Network
V_AA
MID_trim
LSB_trim
Current
Source
Array
V_REF VSENSE
...
V_O NV_O
Current
Switches
Applications
• Direct Digital Synthesis
• Pixel generation for workstations
and high-end monitors
• Direct-generation of broadband
video for cable TV
• High-speed arbitrary waveform
generators
For additional information and latest specifications, see our website: www.triquint.com
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