Analog Devices EVAL-AD9888EB Quick Start Manual page 4

EVAL-AD9888EB
Table 1. Sample Settings for the EVAL-AD9888EB
Mode Resolution
VGA 640 × 480 @ 60 Hz
640 × 480 @ 72 Hz
640 × 480 @ 75 Hz
640 × 480 @ 85 Hz
SVGA 800 × 600 @ 56 Hz
800 × 600 @ 60 Hz
800 × 600 @ 72 Hz
800 × 600 @ 75 Hz
800 × 600 @ 85 Hz
XGA 1024 × 768 @ 60 Hz
1024 × 768 @ 70 Hz
1024 × 768 @ 75 Hz
1024 × 768 @ 80 Hz
1024 × 768 @ 85 Hz
SXGA 1280 × 1024 @ 60 Hz
1280 × 1024 @ 75 Hz
1280 × 1024 @ 85 Hz
UXGA 1280 × 1024 @ 60 Hz
1280 × 1024 @ 65 Hz
1280 × 1024 @ 70 Hz
1280 × 1024 @ 75 Hz
1
PLL divisor to the chip should be an odd integer; Chip divide ratio = Input N + offset of 1.
2
The VCO range and charge pump current settings are preliminary and may need slight adjustments.
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the
human body and test equipment and can discharge without detection. Although this product features
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance
degradation or loss of functionality.
ORDERING GUIDE
Model
AD9888/PCB
© 2003 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective companies.
PLL Timing Chart
Horizontal Sync
Nominal Frequency
(kHz) Polarity
31.469 N
37.861 N
37.500 N
43.269 N
35.156 N/P
37.879 P
48.077 P
46.875 P
53.674 P
48.363 N
56.476 N
60.023 P
64.000 P
68.677 P
60.020 P
80.000 P
91.100 P
75.000 P
81.300 P
87.500 P
93.800 P
C04329–0–7/03(0)
Rev. 0 | Page 4 of 4
1
PLL Divider
Nominal Pixel
N + 1 Clock (MHz)
800 25.175
832 31.500
840 31.500
832 36.000
1024 36.000
1056 40.000
1040 50.000
1056 49.500
1048 56.250
1344 65.000
1328 75.000
1312 78.750
1336 85.500
1376 94.50
1688 108.000
1688 135.000
1730 157.500
2160 162.000
2160 175.500
2160 189.000
2160 202.500
Package Description
Evaluation Board
VCO Charge Pump
Range 2 Current 2
00 010
00 100
00 100
00 100
00 100
00 101
01 011
01 011
01 011
01 100
01 100
01 101
10 011
10 011
10 011
10 100
11 100
11 100
11 100
11 101
11 101