參數(shù)資料
型號： TFP6424PAP
廠商： TEXAS INSTRUMENTS INC
元件分類： 消費家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PQFP64
封裝： 10 X 10 MM, 1.40 MM HEIGHT, 0.50 MM PITCH, THERMALLY ENHANCED, POWER, PLASTIC, TQFP-64
文件頁數(shù)： 11/65頁
文件大?。?/td> 813K
代理商： TFP6424PAP
TFP6422, TFP6424
PanelBus
DIGITAL TRANSMITTER/VIDEO ENCODER COMBO
SLDS118 – MARCH 2000
19
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
hot plug/unplug (auto connect/disconnect detection) (continued)
The hot plug/unplug detection indicated by HTPLUG bit is always enabled regardless of whether or not
TFP6422 is in DVI video output mode. The DVI receiver detection indicated by RXCON is only enabled when
DVI is not in fully off state. In other words, even if TFP6422 is not in DVI video output mode, it is still capable
of detecting Hot Plug/Unplug. However it can detect only DVI receiver connect/disconnect events if DVI is not
in fully off state. When TFP6422 is in one of the analog video output modes, the DAC connect/disconnect
detection is automatically enabled for the DACs that are currently used to output analog video. In all video output
modes, for the DACs that are inactive (in power-down mode), the connect/disconnect detection is normally
disabled unless AVCDEN bit is set to 0. During the period that a particular type of connect/disconnect detection
is disabled, the corresponding status bit in CON_STATUS register maintains its state just prior to disabling the
detection.
power management
When TFP6422 and TFP6424 is in a particular video output mode, it shuts down the unused circuit(s) to save
power. For example, when TV6422 and TV6424 is in DVI output mode, video encoder and all of four DACs are
shut down. Only the PLLs and DVI encoder are active. When TFP6422 and TFP6424 is composite video output
mode, both the DVI encoder and DVI drivers are powered down and only one DAC is active to output the
composite video. The rest of the DACs are powered down. Refer to VIDOUT_CTRL for details.
video output
Table 2. Color Bar Test Pattern Values
R
G
B
R
G
B
Y
Cb
Cr
White
255
235
128
Yellow
255
0
235
0
210
16
146
Cyan
0
255
0
235
170
166
16
Green
0
255
0
235
0
145
54
34
Magenta
255
0
255
235
0
235
106
202
222
Red
255
0
235
0
81
90
240
Blue
0
255
0
235
41
240
110
Black
0
16
128
These figures are only valid for non-switching lines. For switching lines, change the sign of the figures.
Table 3. 100/0/100/0 PAL (mV)
VIDOUT[3:0]
VIDEO OUTPUT TYPE
DVI DRIVERS PINS 21,
DACs
VIDOUT[3:0]
VIDEO OUTPUT TYPE
,
22, 24, 25, 27, 28, 30, 31
PIN 40
PIN 41
PIN 43
PIN 44
0000
DVI
DVI signals
PD
0001
Simultaneous composite and S-video
PD
CVBS
Y
C
PD
0010
Composite video
PD
CVBS
PD
0011
S-video
PD
Y
C
PD
0100
Interlaced YPrPb
PD
Y
Pr
Pb
0101
SCART
PD
CVBS
G
R
B
0110
Progressive RGB
PD
G
R
B
0111
Simultaneous composite and interlaced YPrPb
PD
CVBS
Y
Pr
Pb
1000
DACs connection detection
PD
HC
1111
Powerdown
PD
Legend: PD = powerdown,
CVBS = composite video,
Y = luminance,
C = chrominance,
Pr = red color difference,
Pb = blue color difference,
R = red,
G = green,
B = blue,
HC = half of the full-scale current = 17.4 mA
PRODUCT
PREVIEW
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