MB86060 Fujitsu Media Devices Limited, MB86060 Datasheet - Page 2

• Manufacturer Part Number: MB86060
• Description: 16-Bit Interpolating Digital to Analog Converter
• Manufacturer: Fujitsu Media Devices Limited

Functional Description
The MB86060 integrates a 12-bit 400MSa/s DAC with selectable front end processing to provide input
interpolation filtering, dither and noise shaping. Versatile interfacing via the 16-bit parallel CMOS data input
allows different system requirements to be accommodated, with either offset binary or 2’s complement data
formats selected by an input format control.
The device is manufactured in a 0.35µm advanced CMOS process with Triple Well extension giving
improved isolation between analog blocks and digital-analog.
Converter Architecture
The MB86060 Interpolating DAC incorporates a number of novel design aspects that are subject to patent
applications. Key to its operation are the current sources where segmented, common centroid, interleaved
techniques for the most significant bits, as well as load matching ensure good linearity and low distortion
to at least the 12-bit level. In the switch elements tracking capacitance is minimised to improve settling,
while controlled rise and fall times improve SFDR performance. Finally the digital decoding uses a 3-
dimensional addressing approach to minimise propagation delays from latch to element.
Page 2 of 6
Delay line ctrl
Data CLK out
Data Format
Filter control
CLK in (diff.)
Mult mode
Clk Select
FML Mixed Signal
(diff.)
Data In
Crystal
Reset
Lock
2
16
2
MB86060 16-Bit Interpolating Digital to Analog Converter
MB86060 Functional Block Diagram
3
2
Clock Divider
Multiplier
x2
Clock
[x2 slow]
x2
Reference
Bandgap
[x2 fast]
Copyright © 2000 Fujitsu Microelectronics Europe GmbH
Generator
HP Filter
Dither
12
16
g
DAC
Shaper
Noise
Programmable
excluded from
Dithermay be
final MP
devices
3
June 2000 Version 1.2
2
FME/MS/SFDAC1/FL_1/4270
www.DataSheet4U.com
Dither
NS Enable
Over
Output
Shuffle
Control
DAC