gmZAN3 Preliminary Data Sheet
C0523-DAT-01G
3
July 2003
Ge nes i s Microc hip Confid e n tia l
http:// w ww . g enesis-mic r ochip.com
Table Of Contents
1
Overview ........................................................................................................................................8
1.1
gmZAN3 System Design Examples ......................................................................................8
1.2
gmZAN3 Features .................................................................................................................9
2
gmZAN3 Pinout ...........................................................................................................................10
3
gmZAN3 Pin List .........................................................................................................................12
4
Functional Description .................................................................................................................19
4.1
Clock Generation.................................................................................................................19
4.1.1
Using the Internal Oscillator with External Crystal ........................................................19
4.1.2
Using an External Clock Oscillator.................................................................................22
4.1.3
Clock Synthesis ...............................................................................................................23
4.2
Hardware Reset ...................................................................................................................24
4.3
Analog to Digital Converter ................................................................................................26
4.3.1
ADC Pin Connection.......................................................................................................26
4.3.2
ADC Characteristics........................................................................................................28
4.3.3
Clock Recovery Circuit...................................................................................................28
4.3.4
Sampling Phase Adjustment............................................................................................29
4.3.5
Integrated Schmitt Trigger for Horizontal and Vertical Sync input................................29
4.3.6
SOG and CSYNC support...............................................................................................30
4.3.7
ADC Capture Window ....................................................................................................31
4.4
Test Pattern Generator (TPG)..............................................................................................32
4.5
Input Format Measurement .................................................................................................33
4.5.1
Horizontal and Vertical Measurement ............................................................................33
4.5.2
Format Change Detection................................................................................................33
4.5.3
Watchdog ........................................................................................................................34
4.5.4
Internal Odd/Even Field Detection (For Interlaced Inputs to ADC Only) ......................34
4.5.5
Input Pixel Measurement ................................................................................................34
4.5.6
Image Phase Measurement..............................................................................................34
4.5.7
Image Boundary Detection..............................................................................................34
4.5.8
Image Auto Balance ........................................................................................................34
4.6
High-Quality Scaling...........................................................................................................35
4.6.1
Variable Zoom Scaling....................................................................................................35
4.6.2
Horizontal & Vertical Shrink ..........................................................................................35
4.7
Gamma LUT........................................................................................................................35
4.8
Display Output Interface .....................................................................................................35
4.8.1
Display Synchronization .................................................................................................35
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