dac1408d750 NXP Semiconductors, dac1408d750 Datasheet - Page 36

• Manufacturer Part Number: dac1408d750
• Description: Dac1408d750 Dual 14-bit Dac; Up To 750 Msps; 2?, 4? Or 8? Interpolating With Jesd204a Interface
• Manufacturer: NXP Semiconductors

NXP Semiconductors
DAC1408D750
Product data sheet
10.13.3 AC interface to an Analog Quadrature Modulator (AQM)
When the AQM common-mode voltage is close to ground, the DAC1408D750 must be
AC-coupled and the auxiliary DACs are needed for offset correction.
Figure 25
(V
Fig 25. Example of a DC interface to an AQM with a V
i(cm)
) of 0.5 V when using auxiliary DACs.
DACs
is an example of a connection to an AQM with a common-mode input level
IOUTnN
IOUTnP
AUXnN
AUXnP
All information provided in this document is subject to legal disclaimers.
(1)
(1)
(2)
0 mA to 20 mA
1.1 mA (typ.)
IOUTnP/IOUTnN; V
BBP/BBN; V
Rev. 2 — 2 December 2010
V
66.5 Ω
DDA(3V3)
i(cm)
66.5 Ω
= 0.5 V; V
o(cm)
10 nF
10 nF
= 2.65 V; V
2×, 4× or 8× interpolating DAC with JESD204A
i(dif)(p-p)
2 kΩ
174 Ω
34 Ω
= 1.96 V; offset correction up to 70 mV
o(dif)(p-p)
5 V
2 kΩ
174 Ω
34 Ω
= 1.96 V
i(cm)
of 0.5 V when using auxiliary
DAC1408D750
BBP
BBN
AQM (V
(2)
i(cm)
001aaj589
= 0.5 V)
© NXP B.V. 2010. All rights reserved.
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