ch7003b-v Chrontel, ch7003b-v Datasheet - Page 41

• Manufacturer Part Number: ch7003b-v
• Description: Ch7003 Digital Pc To Tv Encoder
• Manufacturer: Chrontel

CHRONTEL
Buffered Clock Output Register
The buffered clock output register determines which clock is selected to be output at the buffered clock output pin,
and what frequency value should be output if a VCO derived signal is output. The tables below show the possible
output signals.
201-0000-023 Rev. 4.2, 4/12/2002
Table 27. Clock Output Selection
Table 28. K3 Selection
Bit:
Symbol:
Type:
Default:
000
001
010
011
100
101
110
111
SHF[2:0]
SCO[2:0]
000
001
010
011
100
101
110
111
7
14 MHz crystal
(For test use only)
VCO divided by K3 (see Table 28 )
Field ID signal
(for test use only)
(for test use only)
TV horizontal sync (for test use only)
TV vertical sync (for test use only)
K3
2.5
3.5
4.5
3
4
5
6
7
6
Buffered Clock Output
5
SHF2
R/W
0
4
SHF1
R/W
0
3
SHF0
R/W
0
2
SCO2
0
R/W
Symbol: BCO
Address: 17H
Bits: 5
1
SCO1
R/W
0
CH7003B
0
SCO0
R/W
0
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