DAC34SH84_15 Datasheet, PDF (14/93 Pages) Texas Instruments – DAC34SH84 Quad-Channel, 16-Bit, 1.5 GSPS Digital-to-Analog Converter (DAC)

DAC34SH84
SLAS808E – FEBRUARY 2012 – REVISED SEPTEMBER 2015
www.ti.com
Typical Characteristics (continued)
All plots are at 25°C, nominal supply voltage, f_DAC = 1500 MSPS, 2× interpolation, NCO enabled, mixer gain disabled, QMC
enabled with gain set at 1446 for both I/Q channels, 0-dBFS digital input, 20-mA full-scale output current with 4:1 transformer
(unless otherwise noted)
100
100
f_DAC = 800 MSPS
I_out FS = 10 mA, 4:1 Transformer
90
f_DAC = 1000 MSPS
90
I_out FS = 20 mA, 4:1 Transformer
f_DAC = 1200 MSPS
I_out FS = 30 mA, 2:1 Transformer
80
f_DAC = 1500 MSPS
80
70
70
60
60
50
50
40
40
30
30
20
0
100
200
300
400
500
Output Frequency (MHz)
G007
Figure 7. SFDR vs Output Frequency Over f_DAC
10
0
NCO bypassed
QMC bypassed
−10
f_DAC = 1500 MSPS
−20
f_out = 20 MHz
−30
−40
−50
−60
−70
−80
−90
10
110 210 310 410 510 610 710
Frequency (MHz)
Figure 9. Single-Tone Spectral Plot
800
G009
10
0
f_DAC = 1500 MSPS
f_out = 150 MHz
−10
−20
−30
−40
−50
−60
−70
−80
−90
10
110 210 310 410 510 610 710
Frequency (MHz)
Figure 11. Single-Tone Spectral Plot
800
G011
20
0
100
200
300
400
500
Output Frequency (MHz)
G008
Figure 8. SFDR vs Output Frequency Over I_OUTFS
10
0
NCO bypassed
QMC bypassed
−10
f_DAC = 1500 MSPS
−20
f_out = 70 MHz
−30
−40
−50
−60
−70
−80
−90
10
110 210 310 410 510 610 710
Frequency (MHz)
Figure 10. Single-Tone Spectral Plot
800
G010
10
0
f_DAC = 1500 MSPS
f_out = 200 MHz
−10
−20
−30
−40
−50
−60
−70
−80
−90
10
110 210 310 410 510 610 710
Frequency (MHz)
Figure 12. Single-Tone Spectral Plot
800
G012
14
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