Texas Instruments DAC348 Series, Руководство пользователя, Страница: 15 / 25

Ref -15.6 dBm Att 5 dB *
*
*
* 1 RM
CLRWR
B
NOR
RBW 30 kHz
VBW 300 kHz
SWT 2 s *
Center 60 MHz Span 25.5 MHz 2.55 MHz/
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
Tx Cha nne l W-C DMA 3G PP FWD
Ban dwi dth 3. 84 MHz
P o w e r - 1 0 . 5 8 d B m
Adj ace nt Cha nne l
Ban dwi dth 3. 84 MHz
L o w e r - 7 8 . 1 6 d B
Spa cin g 5 MHz
U p p e r - 7 6 . 1 4 d B
Alt ern ate Ch ann el
Ban dwi dth 3. 84 MHz
L o w e r - 8 4 . 3 1 d B
Spa cin g 10 MHz
U p p e r - 8 3 . 3 7 d B
PO S - 15. 587 dB m
Ref -12.3 dBm Att 10 dB *
*
*
* 1 RM
CLRWR
B
NOR
RBW 30 kHz
VBW 300 kHz
SWT 2 s *
Center 30 MHz Span 25.5 MHz 2.55 MHz/
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
Tx Cha nne l W-C DMA 3G PP FWD
Ban dwi dth 3. 84 MHz
P o w e r - 7 . 5 2 d B m
Adj ace nt Cha nne l
Ban dwi dth 3. 84 MHz
L o w e r - 7 8 . 9 5 d B
Spa cin g 5 MHz
U p p e r - 7 8 . 0 4 d B
Alt ern ate Ch ann el
Ban dwi dth 3. 84 MHz
L o w e r - 8 4 . 0 6 d B
Spa cin g 10 MHz
U p p e r - 8 2 . 9 7 d B
PO S - 12. 321 dB m
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Basic Test Procedure with TSW1400
(baseband = 30MHz, NCO = 30MHz with NCO Gain disabled, QMC Gain = 1446)
Figure 13. DAC348x Transformer Coupled Output at 60MHz IF
(baseband = 30MHz, NCO disabled, QMC Gain = 1024)
Figure 14. DAC348x Transformer Coupled Output at 30MHz IF
15 SLAU432 – February 2012 DAC348x EVM
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