AD9430-170 Analog Devices, AD9430-170 Datasheet - Page 20

• Manufacturer Part Number: AD9430-170
• Description: 12-Bit, 170/210 MSPS 3.3 V A/D Converter
• Manufacturer: Analog Devices

AD9430
Troubleshooting
If the board does not seem to be working correctly, try the following:
• Verify power at IC pins.
• Check that all jumpers are in the correct position for the
• Verify VREF is at 1.23 V.
• Try running Encode Clock and Analog Inputs at low speeds
desired mode of operation.
(10 MSPS/1 MHz) and monitor 574, DAC, and ADC outputs
for toggling.
NOTE:
THE AD9430 HAS A CONDUCTIVE HEAT SLUG TO HELP DISSIPATE HEAT AND ENSURE RELIABLE OPERATION OF
THE DEVICE OVER THE FULL INDUSTRIAL TEMPERATURE RANGE. THE SLUG IS EXPOSED ON THE BOTTOM OF
THE PACKAGE AND ELECTRICALLY CONNECTED TO CHIP GROUND. IT IS RECOMMENDED THAT NO PCB SIGNAL
TRACES OR VIAS BE LOCATED UNDER THE PACKAGE THAT COULD COME IN CONTACT WITH THE CONDUCTIVE
SLUG. ATTACHING THE SLUG TO A GROUND PLANE WILL REDUCE THE JUNCTION TEMPERATURE OF THE DEVICE
WHICH MAY BE BENEFICIAL IN HIGH TEMPERATURE ENVIRONMENTS.
0.030 (0.75)
0.024 (0.60)
0.018 (0.45)
SEATING
PLANE
0.006 (0.15)
0.002 (0.05)
0.047 (1.20)
MAX
PRELIMINARY TECHNICAL DATA
25
1
100
26
0.0197 (0.50)
BSC
0.551 (14.00) SQ
0.630 (16.00) SQ
100-Lead TQFP (with Exposed Heat Sink)
(PINS DOWN)
TOP VIEW
Dimensions shown in inches and (mm).
0.011 (0.27)
0.009 (0.22)
0.007 (0.17)
OUTLINE DIMENSIONS
-20-
(TQFP-100)
49
76
0.041 (1.05)
0.039 (1.00)
0.037 (0.95)
75
50
7
0
The AD9430 Evaluation Board is provided as a design example
for customers of Analog Devices, Inc. ADI makes no warranties,
express, statutory, or implied, regarding merchantability or
fitness for a particular purpose.
CONTROLLING DIMENSIONS ARE IN MILLIMETERS.
CENTER FIGURES ARE TYPICAL UNLESS
OTHERWISE NOTED.
50
75
76
49
0.260 (6.00) NOM
BOTTOM VIEW
CONDUCTIVE
HEAT SINK
100
26
1
25
4/01/2002 REV. PrG