dac1405d650 NXP Semiconductors, dac1405d650 Datasheet - Page 18

• Manufacturer Part Number: dac1405d650
• Description: Dual 14-bit Dac, Up To 650 Msps; 2? 4? And 8? Interpolating
• Manufacturer: NXP Semiconductors

NXP Semiconductors
DAC1405D650_1
Product data sheet
Table 11.
Default settings are shown highlighted.
Table 12.
Default settings are shown highlighted.
Table 13.
Table 14.
Bit
4 to 2 MODULATION[2:0] R/W
1 to 0 INTERPOLATION[1
Bit
7
6
5
4 to 3 PLL_DIV[1:0]
2 to 1 PLL_PHASE[1:0]
0
Bit
7 to 0 FREQ_NCO[7:0]
Bit
7 to 0 FREQ_NCO[15:8]
Symbol
:0]
Symbol
PLL_PD
-
PLL_DIV_PD
PLL_POL
Symbol
Symbol
TXCFG register (address 01h) bit description
PLLCFG register (address 02h) bit description
FREQNCO_LSB register (address 03h) bit description
FREQNCO_LISB register (address 04h) bit description
Rev. 01 — 4 May 2009
Dual 14-bit DAC, up to 650 Msps; 2 4 and 8 interpolating
Access Value Description
R/W
Access
R/W
R/W
R/W
R/W
R/W
R/W
Access Value Description
R/W
Access Value Description
R/W
000
001
010
011
100
01
10
11
-
-
Value Description
0
1
0
1
00
01
10
00
01
10
0
1
modulation
interpolation
dual DAC: no modulation
positive upper single sideband up-conversion
positive lower single sideband up-conversion
negative upper single sideband up-conversion
negative lower single sideband up-conversion
2
4
8
lower 8-bits for the NCO frequency setting
lower intermediate 8-bits for the NCO
frequency setting
PLL
undefined
PLL divider
PLL divider factor
PLL phase shift of f
clock edge of DAC (f
switched on
switched off
switched on
switched off
2
4
8
0
120
240
normal
inverted
…continued
DAC1405D650
s
s
)
© NXP B.V. 2009. All rights reserved.
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