THS5671A Datasheet, PDF (10/31 Pages) Texas Instruments – 14-BIT, 125 MSPS, CommsDAC DIGITAL-TO-ANALOG CONVERTER

THS5671A
14-BIT, 125 MSPS, CommsDAC
DIGITAL-TO-ANALOG CONVERTER
SLAS201A – DECEMBER 1999 – REVISED SEPTEMBER 2002
TYPICAL CHARACTERISTICS^†
SPURIOUS FREE DYNAMIC RANGE
vs
A_OUT AT F_OUT = F_CLOCK/11
84
DVDD = 5 V
78
2.27 MHz @ 25 MSPS
72
6.36 MHz @
66
70 MSPS
4.55 MHz @
50 MSPS
60
9.1 MHz @ 100 MSPS
54
SPURIOUS FREE DYNAMIC RANGE
vs
A_OUT AT F_OUT = F_CLOCK/5
84
DVDD = 5 V
5 MHz @ 25 MSPS
78
10 MHz @ 50 MSPS
72
66
60
14 MHz @ 70 MSPS
20 MHz @ 100 MSPS
54
48
–27 –24 –21 –18 –15 –12 –9 –6 –3 0
Aout – dBFS
Figure 13
DUAL TONE SPURIOUS FREE DYNAMIC RANGE
vs
A_OUT AT F_OUT = F_CLOCK/7
84
DVDD = 5 V
0.675/0.725 MHz @ 5 MSPS
78
3.38/3.63 MHz @ 25 MSPS
6.75/7.25 MHz @ 50 MSPS
72
66
48
–27 –24 –21 –18 –15 –12 –9 –6 –3 0
Aout – dBFS
Figure 14
TOTAL HARMONIC DISTORTION
vs
CLOCK FREQUENCY AT F_OUT = 2 MHZ
–66
DVDD = 5 V
–72
2nd Harmonic
–78
60
9.67/10.43 MHz @ 70 MSPS
–84
54
13.5/14.5 MHz @ 100 MSPS
3rd Harmonic
4th Harmonic
48
–27 –24 –21 –18 –15 –12 –9 –6 –3 0
–90
0
20
40
60
80 100 120
Aout – dBFS
Fclock – Clock Frequency – MSPS
Figure 15
Figure 16
† AVDD _{= 5 V, IOUTFS = 20 mA, differential transformer coupled output, 50 Ω doubly terminated load, TA = 25°C (unless otherwise}
noted.)
10
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