參數(shù)資料
型號(hào)： TVP5150AM1IPBS
廠商： TEXAS INSTRUMENTS INC
元件分類： 顏色信號(hào)轉(zhuǎn)換
英文描述： COLOR SIGNAL DECODER, PQFP32
封裝： GREEN, PLASTIC, TQFP-32
文件頁數(shù)： 16/88頁
文件大小： 997K
代理商： TVP5150AM1IPBS
SCLK
GLCO
23-Bit Frequency Control
Start Bit
DCO Reset Bit
MSB
>128 SCLK
1 SCLK
7 SCLK
23 SCLK
1 SCLK
LSB
22
21
0
www.ti.com
SLES209D – NOVEMBER 2007 – REVISED SEPTEMBER 2010
3.17 Genlock Control (GLCO) and RTC
A Genlock control function is provided to support a standard video encoder to synchronize its internal
color oscillator for properly reproduced color with unstable timebase sources such as VCRs.
The frequency control word of the internal color subcarrier digitally tuned oscillator (DTO) and the
subcarrier phase reset bit are transmitted via terminal 23 (GLCO). The frequency control word is a 23-bit
binary number. The frequency of the DTO can be calculated from the following equation:
fdto = (fctrl/2
23) × f
sclk
where fdto is the frequency of the DTO, fctrl is the 23-bit DTO frequency control, and fsclk is the frequency of
the SCLK.
3.17.1 GLCO Interface
A write of 1 to bit 4 of the chrominance control register at I2C subaddress 1Ah causes the subcarrier DTO
phase reset bit to be sent on the next scan line on GLCO. The active-low reset bit occurs seven SCLKs
after the transmission of the last bit of DTO frequency control. Upon the transmission of the reset bit, the
phase of the TVP5150AM1 internal subcarrier DTO is reset to zero.
A Genlock slave device can be connected to the GLCO terminal and uses the information on GLCO to
synchronize its internal color phase DTO to achieve clean line and color lock.
Figure 3-9 shows the timing diagram of the GLCO mode.
Figure 3-9. GLCO Timing
Copyright 2007–2010, Texas Instruments Incorporated
Functional Description
23
Product Folder Link(s): TVP5150AM1
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TVP5150AM1IPBS 制造商:Texas Instruments 功能描述:IC VIDEO DECODER 9BIT 30MSPS TQFP-32 制造商:Texas Instruments 功能描述:IC, VIDEO DECODER, 9BIT, 30MSPS, TQFP-32
TVP5150AM1IPBSQ1 功能描述:視頻 IC UltraLo Pwr NTSC/ PAL/SECAM Vid Dec RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel
TVP5150AM1IPBSR 功能描述:視頻 IC Ultralow Pwr NTSC PAL/SECAM Vid Dec RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel
TVP5150AM1IPBSRQ 功能描述:視頻 IC UltraLo Pwr NTSC/ PAL/SECAM Vid Dec RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel
TVP5150AM1IPBSRQ1 功能描述:視頻 IC Q100 DEVICE FOR TVP5150 RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel
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