參數(shù)資料
型號: TVP5145
英文描述: NTSC/PAL/SECAM/Component Digital Video Decoder With Macrovision(TM) Detection
中文描述: 的NTSC / PAL / SECAM制式/分量數(shù)字視頻解碼器通過Macrovision(TM)的檢測
文件頁數(shù): 15/92頁
文件大?。?/td> 525K
代理商: TVP5145
1
7
Table 1
1. Terminal Functions (Continued)
TERMINAL
NAME
Miscellaneous Signals
I/O
DESCRIPTION
NUMBER
BG
1
O
Connect a 1-
μ
F capacitor from this terminal to analog ground. See Figure 2
1.
Clamp voltage outputs. Connect a 0.1-
μ
F decoupling capacitor from each terminal to analog ground. See
Figure 2
1.
CLAMP1
CLAMP2
2
13
O
GLCO/RTC
31
I/O
This serial output carries color PLL information. A slave device can decode the information to allow chroma
frequency control from the TVP5145 device. Data is transmitted at the SCLK rate in Genlock mode. In RTC
mode, SCLK/4 is used. Additionally, this terminal, in conjunction with PALI and FID, determines the host port
mode configuration during initial power up (see Table 2
3).
GPCL
38
I/O
General-purpose control logic. This terminal has three functions: (see Section 2.12.4,
Miscellaneous
Control
)
1) General-purpose output. In this mode the state of GPCL is directly programmed via the host port.
2) Vertical blank output. In this mode, the GPCL terminal indicates the vertical blanking interval of the output
video. The beginning and end times of this signal are programmable via the host port control.
3) Sync lock control input. In this mode when GPCL is high, the output clock frequencies and the sync timing
are forced to nominal values.
OEB
24
I
Output enable for Y and UV terminals. Output enable is also controllable via the host port. When this terminal
is a logic 1, it forces Y and UV output terminals to high impedance states (active low).
RSTINB
23
I
Reset input, active low
RSTOUTB
Power Supplies
22
O
Reset output, active low. This is a registered feed through of RSTINB.
AFE_VDD
AFE_GND
18
Analog supply. Connect to 3.3-V analog supply
16
Analog ground
CH1_AGND
CH2_AGND
3
12
Analog grounds
CH1_AVDD
CH2_AVDD
6
9
Analog supply. Connect to 3.3-V analog supply.
DGND
21, 37, 47,
57, 68
Digital grounds
DVDD
34, 44, 54,
65, 75
Digital supply. Connect to 3.3 V.
NSUB
17
Substrate ground. Connect to analog ground.
PLL_AGND
20
PLL ground. Connect to analog ground.
PLL_AVDD
REFM
REFP
19
PLL supply. Connect to 3.3-V analog supply.
7
8
O
A/D reference supply. Connect a 1.0-
μ
F capacitor from each terminal to analog ground. Connect a 0.1-
μ
F
capacitor across REFM and REFP terminals (see Figure 2
1).
Sync Signals
AVID
28
I/O
Active video indicator. This signal is high during the horizontal active time of the video output on the Y and
UV terminals.
This terminal may be placed in a high-impedance state. During reset, AVID is an input, used to program the
behavior of Y[9:0], UV[9:0], HSYN, VSYN, AVID, and FID immediately after the completion of reset. If AVID
is pulled up during reset, Y[9:0], UV[9:0], HSYN, VSYN, AVID, PALI, and FID will be actively driven after
reset. If AVID is pulled down during reset, Y[9:0], UV[9:0], HSYN, VSYN, AVID, PALI, and FID remain in a
high-impedance state after reset.
FID
33
I/O
Odd/even field indicator or vertical lock indicator (VLK). For odd/even indicator, a logic 1 indicates the odd
field. For vertical lock indicator, a logic 1 indicates the internal vertical PLL is in a locked state. Additionally,
this terminal in conjunction with GLCO and PALI determines the host port configuration during initial power
up and reset (see Table 2
3).
HSYN
30
O
Horizontal sync signal
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