DAC1405D650HW/C1,5 NXP Semiconductors, DAC1405D650HW/C1,5 Datasheet - Page 33

• Manufacturer Part Number: DAC1405D650HW/C1,5
• Description: IC DAC 14BIT 650MSPD DL 100HTQFP
• Manufacturer: NXP Semiconductors

Specifications of DAC1405D650HW/C1,5

• Settling Time: 20ns
• Number Of Bits: 14
• Data Interface: SPI™
• Number Of Converters: 2
• Voltage Supply Source: Analog and Digital
• Power Dissipation (max): 1.4W
• Operating Temperature: -45°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 100-TQFP Exposed Pad, 100-eTQFP, 100-HTQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935286775518

NXP Semiconductors
DAC1405D650
Product data sheet
10.14.1 Basic output configuration
10.14.2 DC interface to an Analog Quadrature Modulator (AQM)
10.14 Output configuration
The use of a differentially-coupled transformer output provides optimum distortion
performance (see
helps to match the impedance and provides electrical isolation.
The DAC1405D650 can operate up to 2 V
is recommended to connect the center tap of the transformer to a 62 Ω resistor connected
to the 3.3 V analog power supply, in order to adjust the DC common mode to
approximately 2.7 V (see
When the system operation requires to keep the DC component of the spectrum, the
DAC1405D650 can use a DC interface to connect to an AQM. In this case, the offset
compensation for LO cancellation can be made with the use of the digital offset control in
the DAC.
Figure 15
input level.
Fig 13. 1 V
Fig 14. 2 V
provides an example of a connection to an AQM with a 1.7 V
o(p-p)
o(p-p)
All information provided in this document is subject to legal disclaimers.
differential output with transformer
differential output with transformer
Figure 13 “1 V
Rev. 3 — 10 September 2010
Dual 14-bit DAC, up to 650 Msps; 2×, 4× and 8× interpolating
Figure 14 “2 V
IOUTnN
IOUTnP
IOUTnP/IOUTnN; V
IOUTnP/IOUTnN; V
IOUTnP
IOUTnN
o(p-p)
0 mA to 20 mA
0 mA to 20 mA
0 mA to 20 mA
0 mA to 20 mA
differential output with
V
o(p-p)
DDA(3V3)
o(cm)
o(cm)
V
o(p-p)
DDA(3V3)
V
V
DDA(3V3)
DDA(3V3)
differential output with
= 2.8 V; V
= 2.7 V; V
100 Ω
100 Ω
differential outputs. In this configuration, it
50 Ω
50 Ω
V
DDA(3V3)
2:1
o(dif)(p-p)
o(dif)(p-p)
62 Ω
4:1
001aaj817
001aaj818
50 Ω
= 1 V
= 2 V
DAC1405D650
50 Ω
transformer”). In addition, it
transformer”).
i(cm)
© NXP B.V. 2010. All rights reserved.
common mode
33 of 45