參數(shù)資料
型號: TVP5150AM1MPBSREP
廠商: TEXAS INSTRUMENTS INC
元件分類: 顏色信號轉(zhuǎn)換
英文描述: COLOR SIGNAL DECODER, PQFP32
封裝: PLASTIC, TQFP-32
文件頁數(shù): 4/79頁
文件大?。?/td> 896K
代理商: TVP5150AM1MPBSREP
TVP5150AM1-EP
Ultralow-Power NTSC/PAL/SECAM Video Decoder
SLES213 – MAY 2008
www.ti.com
Table 2-1. Terminal Functions
TERMINAL
NO.
I/O
DESCRIPTION
NAME
PBS
Analog Section
AGND
7
I
Substrate. Connect to analog ground.
Analog input. Connect to the video analog input via 0.1-
F capacitor. The maximum input
AIP1A
1
I
range is 0-0.75 VPP, and may require an attenuator to reduce the input amplitude to the
desired level. If not used, connect to AGND via a 0.1-
F capacitor (see Figure 6-1).
Analog input. Connect to the video analog input via 0.1-
F capacitor. The maximum input
AIP1B
2
I
range is 0-0.75 VPP, and may require an attenuator to reduce the input amplitude to the
desired level. If not used, connect to AGND via a 0.1-
F capacitor (see Figure 6-1).
CH_AGND
31
I
Analog ground
CH_AVDD
32
I
Analog supply. Connect to 1.8-V analog supply.
PLL_AGND
3
I
PLL ground. Connect to analog ground.
PLL_AVDD
4
I
PLL supply. Connect to 1.8-V analog supply.
A/D reference ground. Connect to analog ground through a 1-
F capacitor. Also, it is
REFM
30
I
recommended to connect directly to REFP through a 1-
F capacitor (see Figure 6-1).
REFP
29
I
A/D reference supply. Connect to analog ground through a 1-
F capacitor (see Figure 6-1).
Digital Section
Active video indicator. This signal is high during the horizontal active time of the video
AVID
26
O
output. AVID toggling during vertical blanking intervals is controlled by bit 2 of the active
video cropping start pixel LSB register at address 12h (see Section 3.20.17).
DGND
19
I
Digital ground
DVDD
20
I
Digital supply. Connect to 1.8-V digital supply.
FID: Odd/even field indicator or vertical lock indicator. For the odd/even indicator, a 1
indicates the odd field.
FID/GLCO
23
O
GLCO: This serial output carries color PLL information. A slave device can decode the
information to allow chroma frequency control from the TVP5150AM1 decoder. Data is
transmitted at the SCLK rate in Genlock mode. In RTC mode, SCLK/4 is used.
HSYNC
25
O
Horizontal synchronization
INTREQ: Interrupt request output
GPCL/VBLK: General-purpose control logic. This terminal has two functions:
INTREQ/GPCL/
GPCL: General-purpose output. In this mode the state of GPCL is directly programmed
27
I/O
VBLK
via I2C.
VBLK: 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 I2C.
IO_DVDD
10
I
Digital supply. Connect to 3.3 V.
PCLK/SCLK
9
O
System clock at either 1
× or 2× the frequency of the pixel clock.
Power-down terminal (active low). Puts the decoder in standby mode. Preserves the value
PDN
28
I
of the registers.
Active-low reset. RESETB can be used only when PDN = 1. When RESETB is pulled low, it
RESETB
8
I
resets all the registers and restarts the internal microprocessor.
SCL
21
I/O
I2C serial clock (open drain)
SDA
22
I/O
I2C serial data (open drain)
VSYNC: Vertical synchronization signal
PALI: PAL line indicator or horizontal lock indicator. For the PAL line indicator:
VSYNC/PALI
24
O
1 = Noninverted line
0 = Inverted line
External clock reference. The user may connect XTAL1 to an oscillator or to one terminal of
XTAL1/OSC
5
a crystal oscillator. The user may connect XTAL2 to the other terminal of the crystal
I/O
XTAL2
6
oscillator or not connect XTAL2 at all. One single 14.31818-MHz crystal or oscillator is
needed for ITU-R BT.601 sampling for all supported standards.
Introduction
12
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