参数资料
型号: TVP5146M2PFPR
厂商: TEXAS INSTRUMENTS INC
元件分类: 颜色信号转换
英文描述: COLOR SIGNAL DECODER, PQFP80
封装: GREEN, PLASTIC, HTQFP-80
文件页数: 73/107页
文件大小: 949K
代理商: TVP5146M2PFPR
SLES141G
– JULY 2005 – REVISED APRIL 2011
Table 2-71. F-Bit and V-Bit Decode Control 1 Register
Subaddress
69h
Default
00h
7
6
5
4
3
2
1
0
Reserved
VPLL
Adaptive
Reserved
F-bit Mode [1:0]
VPLL:
VPLL time constant control
0 = VPLL adapts the time constant to the input signal (default)
1 = VPLL time constants are fixed
Adaptive:
0 = Enable F-bit and V-bit adaptation to detected lines per frame (default)
1 = Disable F-bit and V-bit adaptation to detected lines per frame
F-bit mode:
00 = Auto mode. If lines per frame is standard decoded F and V bits as per ITU
R BT. 656 standard from line count, decode F bit from
VSYNC input and set V-bit = 0 (default).
01 = Decode F and V bits from input syncs
10 = Reserved
11 = Always decode F and V bits from line count
This register is used in conjunction with the F-bit and V-bit control 2 register (subaddress 75h) as indicated:
REGISTER 69H
REGISTER 75H
STANDARD LPF
NONSTANDARD LPF
MODE
BIT 1
BIT 0
BIT 3
BIT 2
F
V
F
V
0
Reserved
0
1
TVP5160
656
Toggle
Switch9
0
1
0
TVP5160
656
Pulse
0
1
Reserved
0
1
0
Reserved
0
1
0
1
656
Toggle
Switch9
0
1
0
656
Pulse
0
1
Reserved
1
0
Reserved
1
0
1
Reserved
1
0
1
0
Reserved
1
0
1
Reserved
Even = 1
1
0
TVP5146
656
Switch
Odd = toggle
1
0
1
TVP5146
656
Toggle
Switch
1
0
TVP5146
656
Pulse
Switch
1
Reserved
656 = ITU-R BT.656 standard
Toggle = Toggles from field to field
Pulse = Pulses low for 1 line prior to field transition
Switch = V bit switches high before the F-bit transition and low after the F-bit transition
Switch9 = V bit switches high 1 line prior to the F-bit transition, then low after nine lines
Reserved = Not used
68
Functional Description
Copyright
2005–2011, Texas Instruments Incorporated
Product Folder Link(s): TVP5146M2
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