FS450, FS451
PRELIMINARY PRODUCT DESCRIPTION
JUNE, 2000, VERSION 1.2
15
COPYRIGHT
©
© 1999,2000 FOCUS ENHANCEMENTS, INC.
PRELIMINARY INFORM ATION
Pin
Name
Pin
Number
Type/Value
Pin Function Description
CCIR 656 Output Port
V656_OUT7-0
85,84,83,8
1,80,79,77
,76
LVTTL output
Digital CCIR 656 port output. 8 bits wide. Y, Cr, Cb
multiplexed digital output port
HBNK_OUT
75
LVTTL output
Digital TV Horizontal Blank output. Horizontal Blank for
use with the V656_OUT ports.
VBNK_OUT
73
LVTTL output
Digital TV Vertical Blank output. Vertical Blank for use
with the V656_OUT ports.
FIELD_OUT
72
LVTTL output
Digital TV Field output. Field bit for use with the V656_OUT
ports.
AHREF
69
LVTTL output
Digital Auxiliary Horizontal Reference output. Horizontal
Sync for external hardware. Programmable advance or
retard.
AVREF
67
LVTTL output
Digital Auxiliary Vertical Reference output. Vertical Sync
for external hardware. Programmable advance or retard.
Serial Port
SA10/7
25
TTL input
(pull down)
Serial address length select. Selects the length of the
serial address:
SA10/7 = H: 10-bits
SA10/7 = L: 7-bits
SA0
26
TTL input
(pull down)
Serial data address bit 0. . Selects the serial bus address:
SA0 = H: 0x6A, 276
SA0 = L: 0x4A, 224
SDATA
24
TTL I/0
(open drain)
Serial data. Data line of the serial port. Connect to GCC
LTVDA.
SCLK
23
TTL Input
Serial clock. Clock line of the serial port. Connect to GCC
LTVCL.
Power and Ground
VDDPA
22
+3.3 V
VGA_CKOUT Phase-locked loop Power. Filtered +3.3 volt
power for VGA_CKOUT phase locked loop.
VDDOSC
3
+3.3 V
TV Crystal Oscillator Power. Filtered +3.3 volt power for
TV XTAL oscillator.
VDD
33,45,56,6
6,74,82,90
+3.3 V
Digital Power. 3.3 volt power for digital section of chip.
VDDDA
10,13,16,1
8
+3.3 V
D/A Converter Power. Filtered +3.3 volt power for 10 bit
video D/A converters.
VSSPA
27
0 V
VGA_CKOUT phase-locked loop ground.
VSSOSC
4
0 V
TV Crystal Oscillator ground.
VSS
32,38,50,6
1,70,78,86
,95
0 V
Digital ground. +3.3 volt power return.
VSSDA
7,14
0 V
D/A Converter Ground.
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