DK86065-2 Fujitsu Semiconductor America Inc, DK86065-2 Datasheet - Page 15

• Manufacturer Part Number: DK86065-2
• Description: KIT EVAL 16BIT DAC FOR MB86065
• Manufacturer: Fujitsu Semiconductor America Inc

Specifications of DK86065-2

• Number Of Dac's: 1
• 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: MB86065
• 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: 865-1011

September 2007 Version 1.01
FME/MS/DAC80S/DS/5344
MB86065 14-bit 1+GSa/s DAC
1.4
A 1.2V bandgap reference is provided on-chip, although this is
left unconnected when an external reference is to be used. To
use the internal bandgap reference, pins BGAP and VREF
should be linked via a 1k
to AVSS with a 100nF capacitor.
For maximum absolute accuracy an external voltage reference
should be used. This should be connected to VREF through a
1k
voltage reference should be powered from the AVD25 pin, which
is a regulated 2.5V output with high power supply noise rejection.
1.5
From the voltage reference the full scale analog output current is defined by an external reference
resistor, R
e.g. With Vref = 1.20V, to give a 20mA full scale output, Rref =
960 . Designs that for simplicity use a 1k
a marginally lower full scale output current of 19.2mA (-0.35dB)
unless using an external reference to provide a higher voltage of
1.25V.
1.6
The DAC output is a differential current type. A termination resistor, or load, should be used
appropriate for the recommended output swing.
Analog output performance benefits from the chosen DAC core architecture, identified in Section 1
as similar to two interleaved DACs running at half rate. The big advantage of this approach compared
Copyright © 2004-2007 Fujitsu Microelectronics Europe GmbH
Disclaimer : The contents of this document are subject to change without notice. Customers are advised to consult with FUJITSU sales representatives before
R
resistor and decoupled as described above. The external
ref
Voltage Reference
Analog Output Reference Resistor
Analog Outputs
ordering.The information and circuit diagrams in this document are presented “as is”, no license is granted by implication or otherwise.
ref
, where,
16 V
-------------------- -
CONFIG
I
OP
DAC
(bit)
1
1
0
ref
Table 11: DAC Core Register: DAC CONFIG [0x1C0]
resistor. VREF should be decoupled
DAC enabled
DAC disabled (default)
resistor will result in
Configuration
Production
MB86064
MB86064
BGAP
VREF
RREF
Page 15 of 56
AVSS
AVSS
1k
100nF