dac1628d1g25 NXP Semiconductors, dac1628d1g25 Datasheet - Page 30
dac1628d1g25
Manufacturer Part Number
dac1628d1g25
Description
Dual 16-bit Dac Jesd204b Interface Up To 1.25 Gsps; X2, X4 And X8 Interpolating
Manufacturer
NXP Semiconductors
Datasheet
1.DAC1628D1G25.pdf
(133 pages)
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DAC1628D1G25
Objective data sheet
10.15.2 IQ-modulator - BGX7100 interface
The DAC1628D1G25 can operate a differential output of up to 2 V (p-p). In this
configuration, connect the center tap of the transformer to a 62 resistor, which is
connected to the 3.3 V analog power supply. This adjusts the DC common-mode to
around 2.7 V (see
The DAC1628D1G25 can be easily connected to the BGX7100 NXP IQ-modulator. The
offset compensation for local oscillator can be canceled using the digital offset control in
the device. The DAC digital gain and phase compensation can also be used to cancel the
image.
Figure 16
BGX7100 interface.
Fig 15. 2 V (p-p) differential output with transformer
Fig 16. DAC1628D1G25 with BGX7100 IQ-modulator interface
shows an example of a connection between the DAC1628D1G25 and the
All information provided in this document is subject to legal disclaimers.
Figure
IOUTAN/IOUTBN
IOUTAP/IOUTBP
DAC1628D
IOUTAN/IOUTBN
IOUTAP/IOUTBP
AUXAN/AUXBN
AUXAP/AUXBP
Rev. 1.1 — 10 October 2011
DAC1628D
15).
Dual 16-bit DAC: JESD204B interface; up to 1.25 Gsps
0 mA to 20 mA
0 mA to 20 mA
0 mA to 20 mA
IOUTAP/IOUTAN
IOUTBP/IOUTBN
V
V
O(cm)
O(dif)
51.1 Ω
= 2 V
= 2.7 V
3.3 V
3.3 V
3.3 V
100 Ω
100 Ω
51.1 Ω
DAC1628D1G25
3.3 V
62 Ω
IQ-modulator
4:1
BGX7100
BBAN/BBBN
BBAP/BBBP
aaa-000274
aaa-000275
50 Ω
© NXP B.V. 2011. All rights reserved.
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