DK86064-2 Fujitsu Semiconductor America Inc, DK86064-2 Datasheet - Page 10

• Manufacturer Part Number: DK86064-2
• Description: KIT DEB DUAL 14BIT DAC MB86064
• Manufacturer: Fujitsu Semiconductor America Inc

Specifications of DK86064-2

• Number Of Dac's: 2
• Number Of Bits: 14
• Outputs And Type: 1, Differential
• Sampling Rate (per Second): 1G
• Data Interface: Serial
• Dac Type: Current
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Utilized Ic / Part: MB86064
• For Use With: 865-1111 - DAC DK FPGA ADAPTER BOARD865-1012 - KIT DEV DUAL 14BIT MB86064 SMA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 865-1010

This example used an Altera Stratix FPGA evaluation platform driving a Fujitsu development kit at
800MSa/s. Another circuit implementation would exhibit different absolute timings but similar relative
adjustments.
Having evaluated a prototype design and final loop clock delay settings chosen, the real benefit of
using the loop clock facility is in maintaining valid clock-to-data timing at these settings. Figure 5
illustrates this in operation by using excessive variation in supply voltages to emulate both fast and
slow FPGA and DAC components being used together in production.
Page 10 of 52
Disclaimer : The contents of this document are subject to change without notice. Customers are advised to consult with FUJITSU sales representatives before
ordering.The information and circuit diagrams in this document are presented “as is”, no license is granted by implication or otherwise.
FPGA
CC
DD
AA
BB
EE
FF
00
11
22
33
44
55
66
77
88
99
DAC
Figure 5 Maintaining Valid Clock-to-Data Timing using Look Clock
1.4V
3.1V
1.6V
2.9V
Low
No Loop-Clock
1.5V
3.3V
1.8V
3.3V
Typ. High
Production
1.6V
3.5V
2.0V
3.6V
1.4V
3.1V
1.6V
2.9V
Low
With Loop-Clock
Copyright © 2004-2005 Fujitsu Microelectronics Europe GmbH
MB86064 Dual 14-bit 1GSa/s DAC
1.5V
3.3V
1.8V
3.3V
Typ. High
1.6V
3.5V
2.0V
3.6V
October 2005 Version 1.2
0x1C1 = 0x040
FME/MS/DAC80/DS/4972