DAC37J84 Datasheet, PDF (23/122 Pages) Texas Instruments – Digital-to-Analog Converters

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DAC37J84, DAC38J84
SLASE17B – JANUARY 2014 – REVISED MARCH 2014
Typical Characteristics (continued)
Unless otherwise noted, all plots are at T_A = 25°C, nominal supply voltages, f_DAC = 2460MSPS, 2x interpolation, 0dBFS digital
input, 20mA full scale output current with 2:1 transformer, LMF = 841 and PLL is disabled.
Ref -21.1 dBm
-30
-40
-50
1 RM *
CL RW R ^-60
-70
-80
-90
-100
-110
-120
Center 70 MHz
Tx Ch annel
Bandw idth
Adjac ent Ch annel
Bandw idth
Spaci ng
IF = 70MHz
* Att 5 dB
* RBW 30 kHz
* VBW 300 kHz
* SWT 2 s
Marker 1 [T1 ]
-135.05 dB
82.750000000 MHz
B
N OR
10 M Hz
10 M Hz
10.5 M Hz
3.6 MHz/
W-CDM A 3GPP FWD
Powe r
1
Span 36 MHz
E XT
-10.99 dBm
Lowe r
Uppe r
-78.59 dB
-78.54 dB
Ref -20 dBm
-30
-40
-50
1 RM *
CL RW R -60
-70
-80
-90
-100
-110
1
Center 150 MHz
Tx Ch annel
Bandw idth
Adjac ent Ch annel
Bandw idth
Spaci ng
IF = 150MHz
* Att 5 dB
* RBW 30 kHz
* VBW 300 kHz
* SWT 2 s
Marker 1 [T1 ]
-114.03 dB
137.250000000 MHz
B
N OR
10 M Hz
10 M Hz
10.5 M Hz
3.6 MHz/
W-CDM A 3GPP FWD
Powe r
Span 36 MHz
E XT
-10.98 dBm
Lowe r
Uppe r
-77.40 dB
-77.41 dB
Figure 49. 10MHz Single Carrier LTE Test Mode 3.1
Figure 50. 10MHz Single Carrier LTE Test Mode 3.1
Ref -19.7 dBm
-30
-40
-50
1 RM *
CL RW R -60
-70
-80
-90
-100
1
-110
Center 230 MHz
Tx Ch annel
Bandw idth
Adjac ent Ch annel
Bandw idth
Spaci ng
IF = 230MHz
* Att 5 dB
* RBW 30 kHz
* VBW 300 kHz
* SWT 2 s
Marker 1 [T1 ]
-109.85 dB
217.250000000 MHz
B
N OR
10 M Hz
10 M Hz
10.5 M Hz
3.6 MHz/
W-CDM A 3GPP FWD
Powe r
Span 36 MHz
E XT
-11.23 dBm
Lowe r
Uppe r
-74.71 dB
-75.32 dB
Ref -21.3 dBm
-30
-40
-50
1 RM *
CL RW R ^-60
-70
-80
-90
-100
-110
-120
Center 70 MHz
Tx Ch annel
Bandw idth
Adjac ent Ch annel
Bandw idth
Spaci ng
IF = 70MHz
* Att 5 dB
* RBW 30 kHz
* VBW 300 kHz
* SWT 2 s
Marker 1 [T1 ]
-116.42 dB
88.250000000 MHz
B
20 M Hz
20 M Hz
21 M Hz
N OR
1
7.2 MHz/
W-CDM A 3GPP FWD
Powe r
Span 72 MHz
E XT
-10.21 dBm
Lowe r
Uppe r
-77.36 dB
-77.60 dB
Figure 51. 10MHz Single Carrier LTE Test Mode 3.1
Figure 52. 20MHz Single Carrier LTE Test Mode 3.1
Ref -22.7 dBm
-30
-40
-50
1 RM * _-60
CL RW R
-70
-80
-90
-100
-110
-120
Center 150 MHz
Tx Ch annel
Bandw idth
Adjac ent Ch annel
Bandw idth
Spaci ng
IF = 150MHz
* Att 5 dB
* RBW 30 kHz
* VBW 300 kHz
* SWT 2 s
Marker 1 [T1 ]
-109.66 dB
168.250000000 MHz
B
N OR
1
20 M Hz
20 M Hz
21 M Hz
7.2 MHz/
W-CDM A 3GPP FWD
Powe r
Span 72 MHz
E XT
-10.41 dBm
Lowe r
Uppe r
-75.90 dB
-76.17 dB
Figure 53. 20MHz Single Carrier LTE Test Mode 3.1
Ref -22.7 dBm
-30
-40
-50
1 RM * _-60
CL RW R
-70
-80
-90
-100
-110
-120
Center 230 MHz
Tx Ch annel
Bandw idth
Adjac ent Ch annel
Bandw idth
Spaci ng
IF = 230MHz
* Att 5 dB
* RBW 30 kHz
* VBW 300 kHz
* SWT 2 s
Marker 1 [T1 ]
-107.67 dB
217.250000000 MHz
B
N OR
1
20 M Hz
20 M Hz
21 M Hz
7.2 MHz/
W-CDM A 3GPP FWD
Powe r
Span 72 MHz
E XT
-10.62 dBm
Lowe r
Uppe r
-73.17 dB
-73.63 dB
Figure 54. 20MHz Single Carrier LTE Test Mode 3.1
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