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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.
TQ6124
1 Gigasample/sec,
14-bit
Digital-to-Analog
Convertor
Features
Figure 1. TQ6124 Block Diagram
鈥?1Gs/s aggregate bandwidth
LSBs
CLK NCLK
D0
D1
D2
D3
D4
D5
D6
Intermediate Bits
D7
D8
D9
MSBs
D10 D11 D12 D13
鈥?14-bit resolution
鈥?RF front end
鈥?ECL-compatible inputs
Master
Latch
鈥?0.026% DC differential
non-linearity
鈥?0.035% DC integral non-linearity
MIXED SIGNAL
PRODUCTS
Delay
Stages
S1
S2
...
...
...
S14 S15
Segment
Encoders
鈥?SFDR: 52 dBc @ F
OUT
= 75 MHz
48 dBc @ F
OUT
= 148 MHz
45 dBc @ F
OUT
= 199 MHz
鈥?1.4 W power dissipation
鈥?44-pin ceramic QFP package
or die only
Slave
Latch
Current
Switches
Applications
鈥?Direct Digital Synthesis
鈥?Pixel generation for workstations
and high-end monitors
50 ohm R-2R Ladder Network
V
O
V
AA
MID_trim
LSB_trim
V
REF
V
SENSE
NV
O
鈥?Direct-generation of broadband
video for cable TV
鈥?High-speed arbitrary waveform
generators
Current
Source
Array
For additional information and latest specifications, see our website:
www.triquint.com
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