FS450, FS451
PRELIMINARY PRODUCT DESCRIPTION
JUNE, 2000, VERSION 1.2
4
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© 1999, 2000 FOCUS ENHANCEMENTS, INC.
PRELIMINARY INFORM ATION
Figure 1: Typical System Block Diagram ................ 2
Figure 2: FS450 Functional Block Diagram ............. 5
Figure 3: GCC Frame Format ................................ 6
Figure 4: CCIR 601/656 Field Format...................... 7
Figure 5: GCC
⇒ TV Output Only ..........................8
Figure 6: GCC or DVD output switched
⇒ TV .........9
Figure 7: Multiple digital video sources blended
⇒ TV ......................................................... 10
Figure 8: CCIR 656 Timing Block Diagram ............ 30
Figure 9: Auxiliary NTSC Reference Signals.......... 31
Figure 10: Auxiliary PAL Reference Signals .......... 31
Figure 11. SIO Translation Using Long-tail
Resistors D1 = 1N4148................................ 53
Figure 12. SIO Translation Using Current Mirrors
D1 = 1N4148, Q1 = 2N3906, Q2 = 2N3904 .... 54
Figure 13: Package Outline & Dimensions ............ 58
Table 1: FS45x Pin Assignments......................... 11
Table 2: FS450 to GCC Pin Mapping.................... 12
Table 3: SAV and EAV Control Words.................. 24
Table 4: GCC Port Mapping (UIM_MOD)............... 24
Table 5: NCO_LOAD Control Bits......................... 34
Table 6: NOTCH_FRQ Values.............................. 50
Table 7: Typical Register Values for Various
Standards ................................................... 51
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