DAC3282 Datasheet, PDF (15/49 Pages) Texas Instruments – 16-Bit, 625 MSPS, 2x Interpolating, Dual-Channel Digital-to-Analog Converter (DAC)

DAC3282
www.ti.com
SLAS646 – DECEMBER 2009
TYPICAL CHARACTERISTICS (continued)
90
f_DAC = 491.52 MSPS, 2x Interpolation,
IOUTFS = 20 mA
85
Alternate 0 dBFS
80
Adjacent 0 dBFS
80
f_DAC = 491.52 MSPS, 2x Interpolation
IOUTFS = 20 mA
75
Aternate, 0 dBFS
70 ^{Alternate, -6 dBFS}
ACLR, 0 dBFS
75
Adjacent -6 dBFS
70
Alternate -6 dBFS
65 ACLR -6 dBFS
60
65
0
50
100
150
200
250
f_OUT - Output Frequency - MHz
Figure 17. Single Carrier WCDMA ACLR vs Input Scale
55
0
50
100
150
200
250
f_OUT - Output Frequency - MHz
Figure 18. Four Carrier WCDMA ACLR vs Input Scale
Ref -13 dBm
* Att 15 dB
* RBW 30 kHz
* VBW 300 kHz
* SWT 10 s
-20
-30
-40
-50
1 RM *
CLRWR ^-60
-70
-80
-90
-100
-110
-120
-130
Center 70 MHz
2 MHz/
A
NOR
Span 20 MHz
Tx Channel
Bandwidth
Adjacent Channel
Bandwidth
Spacing
2x Interpolation, 0 dBFS,
f_DAC = 491.52 MSPS,
f_OUT = 70 MHz
3.84 MHz
3.84 MHz
5 MHz
W-CDMA 3GPP FWD
EXT
Power
-7.62 dBm
Lower
-78.89 dB
Upper
-78.83 dB
Figure 19. Single Carrier W-CDMA Test Model 1, f_OUT = 70 MHz
Ref -14.4 dBm
* Att 10 dB
-20
-30
-40
-50
1 RM *
CLRWR ^-60
-70
-80
-90
-100
-110
-120
-130
Center 153.6 MHz
Tx Channel
Bandwidth
Adjacent Channel
Bandwidth
Spacing
2x Interpolation, 0 dBFS,
f_DAC = 491.52 MSPS,
f_OUT = 153.6 MHz
3.84 MHz
3.84 MHz
5 MHz
* RBW 30 kHz
* VBW 300 kHz
* SWT 10 s
2 MHz/
W-CDMA 3GPP FWD
Power
Lower
Upper
A
NOR
Span 20 MHz
EXT
-8.89 dBm
-76.86 dB
-76.18 dB
Figure 20. Single Carrier W-CDMA Test Model 1,
f_OUT = 153.6 MHz
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